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i DPI 605 (IS) User Manual

1. EXT PRESS el SOURCE bartas INDICATOR Figure 4 10 Pressure Switch Test Connections Switch the instrument to ON by means of the ON OFF key Close the Vent Valve 2 K156 Issue No 1 4 36 DPI 605 IS User Manual o Press the Switch Test key The instrument responds with a flashing Switch Test indication and by displaying the current pressure and the status of the pressure switch contacts e g INT FS 20 000 bar 0 000 Contacts Closed Contacts Opened Switch Test Contacts Closed Start F1 Exit F4 poe Ka 2 i o Press the Start F1 key and use the Hand pump 3 to generate an output pressure Continue pumping until the switch contacts change state For indicator versions of the instrument vary the applied pressure externally INT FS 20 000 bar Contacts Closed 5 1 771 4 gauge Contacts Opened 5 00198 Switch Test Contacts Open Reset J Exit e sl o Open the Vent Valve 2 As the system pressure drops the calibrator records the pressure at which the pressure switch contacts change state e g FA INT FS 20 000 bar Contacts Closed at 4 93162 x 4 91 1 32 Rue Contacts Opened at 5 00198 sau Switch Test Contacts Closed Reset Fi Tea F4 Je Il P K156 Issue No 1 4 Operation 4 37
2. K156 Issue No 1 A AutoCal A 1 Example 1 SCPI upload of Results File ADIF ABCDEFGHIJKLMNOPOR 12345678901234567 gt 1 P 9999 STD VERSION 1990 0 IDENTIFY DATE 16 03 93 TIME 15 39 36 DUTCH DEVICE_TYPE GAUGE FULLSCALE 10 00000 INFO TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE Enter ambient temperature 21 DIMENSION LEAK_END TYPE EXPLICIT UNITS psi DIMENSION LEAK_START TYPE EXPLICIT UNITS psi DIMENSION LEAK_DROP TYPE EXPLICIT UNITS psi DIMENSION LEAK_RATE TYPE EXPLICIT UNITS psi min DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 0004 0 0003 0 0001 0 0007 15 40 12 Continued on page A 22 K156 Issue No 1 A 22 DPI 605 IS User Manual Continued from page A 21 INFO Leaktest Results INFO Spec 0 0100 psi min PASS DIMENSION PRESSURE TYPE EXPLICIT UNITS psi TRANSDUCER_FS 290 0755 TRANSDUCER_TYPE GAUGE DIMENSION ELECTRICAL TYPE EXPLICIT UNITS VOLTS DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 0005 0 00002 15 40 19 0 0004 0 00001 15 40 20 0 0003 0 00001 15 40 22 0 0004 0 00001 15 40 24 0 0004 0 00001 15 40 25 0 0005 0 00001 15 40 27 0 0005 0 00005 15 40 28 0 0004 0 00004 15 40 29 INFO BSL Results INFO Rslt 0 0059 Spec 0 1 FS PASS INFO Ofst 2 8e 05 V Grad 0 071 V psi K
3. K156 Issue No 1 4 6 DPI 605 IS User Manual 4 4 Instrument Set up Contd Auto Off The functions available in this category of the Defaults menu allow the auto Power Off feature of the instrument to be Set up Power oc Power Defaults o Battery Status o Cal Test e Units Comms Clock More Printer Contrast Auto Off e More o Power Switch the instrument to ON Press the SET UP key Select Defaults F1 from the Set up menu Select Auto off from the Defaults menu Note that Auto off is on the second level of the Defaults menu and is obtained by pressing the More key F4 on the first level menu Select Power F1 Enter the required time out period in minutes on the numeric keyboard followed by ENT Enable the Power off function by pressing the Enable key F3 Conversely disable the function by pressing the Disable key F4 K156 Issue No 1 4 Operation 4 7 4 4 1 Set up Units Pressure Instruments are supplied with their pressure scales programmed to specific function keys as follows bar F1 psi F2 MH O F3 and kPa F4 U S versions of the instrument default to psi F1 in Hg 0 F2 in Hg F3 and kPa F4 Japanese versions default to kg cm F1 mmHg F2 mH 0 F3 and mbar F4 To change any default settings proceed as follows setup oe Switch the instrument to ON Defaults e Battery Press the SET UP key e Status
4. SENSel PRESsure MODE set_pressure_mode_cmd AU Select Pressure measurement mode gauge absolute differential p_mode ENUMERIC SINGLE SENSel PRESsure MODE set_pressure_mode_qry Select Pressure measurement mode gauge absolute differential SENSel PRESsurel RESolution res_value_cmd res_val NUMERIC_REAL SINGLE SENSel PRESsurel RESolution RESet res_reset_cmd SENSel PRESsure RESolution res_value_qry SENSe PRESsure RANGe set_pres_range_cmd pressure_range ENUMERIC SINGLE SENSel PRESsurel RANGe set_pres_range_qry SOURcel PRESsure SOURcel PRESsurel LIMit STATe alarm_state_cmd alarm_stat BOOLEAN SINGLE K156 Issue No 1 B SCPI Communications Protocol B 29 URcel PRESsurel LIMit STATe arm_state_qry Rcel PRESsurel LIMit AMPLitudel rm_limit_cmd alarm_value NUMERIC_REAL SINGLE SOURce PRESsure LIMit AMPLitude alarm_limit_qry SOURcel PRESsure PROTection LEVell protection_cmd protect_leve NUMERIC_REAL SINGLE SOURce PRESsure PROTection LEVel protection_qry SOURce PRESsure PV source_pv_cmd pv_source ENUMERIC SINGLE SOURcel PRESsurel PV source_pv_qry STATus OPERation CONDition SS_status_opr_cond_qry STATus OPERation ENABle SS_status_opr_enable_cmd StatOperEnab NUMERIC_INT SINGLE STATus OPERation ENABle SS_status_opr_enable_qry STATus OPERation EVENt SS_status_opr_event_q
5. 4 mm plugs CAUTION IF NOT MAKING USE OF THE TEST LEADS PROVIDED USE LEAD TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS Figure 4 7 shows the connector panel and the connections for Voltage and Current Measurement H switch 41 A B H om 4 l COM V KO SWITCH CONTACT SWITCH TEST H switch A B JO H om l COM V DATA LOG USE IN TRIGGER SAFE AREA ONLY Figure 4 7 Switch Test and Data Log Trigger Connections K156 Issue No 1 4 Operation 4 23 4 5 8 Temperature Probe Connections The DPI 605 IS supports two types of Platinum Resistance Temperature Probes a PT100 for temperature ranges 55 to 250 C and PT 25 for temperature ranges 55 to 800 C Temperature probes supplied with the equipment are terminated with an appropriate connector The pin out connections of the Temperature Probe are given in Figure 4 8 To connect a temperature probe plug the probe connector into the socket labelled Temp Probe located on the right hand side connector panel item 6b Fig 4 9 Drive Sense Drive Sense Rear View of Plug Figure 4 8 Temperature Probe Connections K156 Issue No 1 4 24 4 6 DPI 605 IS User Manual Generating a Pressure Calibrator only The pressure generation controls of the instrument are shown in Fig 4 9 and comprise th
6. For example INPUT1 FILTER LPAS STATE ON would turn on the filter on the pressure reading and INPUT2 TARE 4 0 INPUT2 TARE STATE ON would set the electrical Tare value to 4 and turn it on on whatever range was currently selected for display on the electrical side of the instrument SENSE LEAKTEST provides access to setting up the Leak Test mode of the instrument and also to the results of a Leak Test SENSE SWITCHTEST provides access to setting up the Switch Test mode of the instrument and also to the results of a Switch test SENSE TEMPERATURE K156 Issue No 1 B 14 DPI 605 IS User Manual selects temperature as the electrical measurand SENSE VOLTAGE selects voltage as the electrical measurand SENSE CURRENT selects current as the electrical measurand SENSE PRESSURE RESOLUTION is used to set the resolution of the pressure display defined by the number of decimal places SENSE PRESSURE RANGE is used to select the pressure range to be displayed One of three may be specified INTERNAL EXTERNAL or ATMOSPHERIC For example SENSE PRESSURE RANGE ATMOSPHERIC would select the Barometric Reference for display SENSE PRESSURE MODE is used to select the pressure mode as either Gauge Differential or Absolute For example SENSE PRESSURE MODE GAUGE K156 Issue No 1 B SCPI Communications Protocol B 15 would select the current pressure range as gauge if available SYSTEM
7. Cal Test le wees o Select Defaults F1 from the Set up menu e Comms a e Select Units F1 from the Defaults menu a o Select Pressure F1 from Defaults Units Selection menu Temp Operation of this key displays full range of units available together with an indication of the units to which each function key is currently assigned torr atm psi F2 Ib ft2 inHg inH20 inH204 The default setting for any key is changed by pressing the required function key This will cause it to scroll through the menu missing out units assigned to the other function keys The key is assigned the unit beside which it is displayed Assigning three function keys to Blank provides the facility of setting up the instrument for single pressure unit operation K156 Issue No 1 4 8 Spec l DPI 605 IS User Manual The instrument has the facility to enable the operator to set up a special conversion factor for the pressure reading When the special factor is selected the display pressure units are in Pascals The default setting of the Pascals to Spec l conversion factor is 100 scaling the pressure display in hPa By entering a conversion factor Pascals to Spec unit factor under Set up the instrument can be made to read any required unit To change the default setting of the Special factor proceed as follows Defaults Battery Status Cal Test o a Units Comms Clock More Pressure Spec l Temp
8. If the instrument is fitted with the Barometric Reference option it is pneumatically connected to this port K156 Issue No 1 TES 3 6 DPI 605 IS User Manual 3 3 Electrical Connections All electrical connections to both the calibrator and indicator instruments are made via the panels 6 and 8 located on the sides of the instrument as shown in Fig 3 1 and 3 1a The connections made via these panels are as follows System Connector Panel Located on the right hand side of the instrument item 6 Figs 3 1 and3 1a The connections made via this panel are shown below amp ad EXT TRANSDUCER TEMPERATURE PROBE RS 232 The sockets are allocated as follows oc Temperature probe TEMPERATURE PROBE RS 232 serial data interface RS 232 External transducer EXT TRANSDUCER Device Under Test Connector Panel Located in the left hand side of the instrument item 8 Fig 3 1 and Fig 3 1a The connections made via this panel are shown below These sockets should be considered as two functional groups Depending on the selected mode the first group A and B provide either the switch test input or the Data Log Trigger input K156 Issue No 1 3 Familiarisation 3 7 The second group I COM and V provide the inputs to the instrument s built in digital multimeter
9. SINGLE SINGLE EMory DATalog STOPtime dlog_stop_time_qry EMory DATalog THReshold dlog_threshold_value_cmd dlog_threshold_val NUMERIC_REAL SINGLE MEMory DATalog THReshold dlog_threshold_value_qry EMory DELete delete_name_cmd delete_nam file_pin STRING NUMERIC_REAL SINGLE SINGLE MEMory DELete ALL delete_all_cmd MEMory FREE mem_free_qry bytes_avail bytes_used NUMERIC_REAL NUMERIC_REAL SINGLE SINGLE MEMory LOAD BSL bsl_load_cmd bsl_type bsl_fullscale bsl_name ENUMERIC NUMERIC_REAL STRING SINGLE SINGLE SINGLE MEMory LOAD TSL tsl_load_cmd tsl_type tsl_fullscale tsl_name ENUMERIC NUMERIC_REAL STRING SINGLE SINGLE SINGLE MEMory LOAD ADIF adif_value_cmd adif_val STRING SINGLE MEMory RECall recall_value_cmd recall_val NUMERIC_REAL SINGLE B 25 K156 Issue No 1 B 26 DPI 605 IS User Manual MEMory RECall NEXT recall_next_cmd EMory RECall recall_value_qry EMory SAVE file_save_cmd MEMory STORe ore_value_cmd store_val NUMERIC_REAL SINGLE store_val_txt STRING SINGLE MEMory STORe NEXT store_next_cmd store_next_txt SINGLE MESS autocal_mess_cmd mess_str SINGLE NOTE note_cmd note_string SINGLE PT autocal point cmd point value UMERIC REAL SINGLE point limit MERIC REAL SINGLE READ BATTery bat value gry bat val ERIC REAL SINGLE READ CURRent read current gry current value ERI
10. o Select the required mode by pressing either the Manual F1 or Auto F2 keys Manual AutoCal procedures are described in Section 4 13 2 and Auto AutoCal procedures in 4 13 4 Section 4 13 3 describes the method of replaying AutoCal data 4 13 1 Use of the AutoCal Directory and Delete Utilities Directory Utility Selection of the Directory F3 option from the AutoCal menu provides access to two directories a Tests TEST SRB TEST directory and a Results directory The relevant directories are selected by the Tests F1 and Results F2 keys Both directories are listed in the order in which the AutoCal operations were carried out For Auto AutoCal this means the order in which the tests were programmed and the results collected Typical directory listings are as follows AUTO CAL AutoCal Tests Test Free Blocks 9212 Replay Directory Delete TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Up Page Down N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 Typical Tests Directory AutoCal Results TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Up Page Down Free Blocks 9212 N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 Typical Results Directory K156 Iss
11. point_limit 1 00e 011 point_value 1 00e 011 power_stat Default ON NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 99 00 59 00 59 00 0 00 NUMERIC_REAL 1 0000 NUMERIC_REAL 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 powerdown_stat Default ON powertime_val 1 0000 presr_unit ATM F2UNIT FTH204 LB FT2 MMH20 Default BAR BOOLEAN BOOLEAN SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 NGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE NUMERIC_REAL SINGLE F3UNIT HPA NHG KG CM2 MBAR MMHG PSI SPECIAL pressure_range NTernal EXTernal Default INTERNAL pressure_value 1 00e 011 printer_val 1 0000 protect_level 1 00e 011 30 00 X_DATA CMHG FAUNIT NH2O IN KG M2 K MPA 30 00 SINGLE FIUNIT FTH20 H204 PA H20 MHG PA TORR BAR ENUMERIC ATMospheric NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 99 00 1 0000 NUMERIC_REAL 1 00e 011 0 00 SINGLE 0 00 SINGLE 1 0000 SINGLE 0 00 SINGLE B 37 K156 Issue No 1 B 38 PV_ PRESsure De ScaleFactor second ServiceReg DPI 605 IS User Manual ENUMERIC SINGLE VACuum ault PRESSURE source all_stat BOOLEAN SINGLE ault OFF all_val NUMERIC_REAL SINGLE 0000 20 00 1 0000 1 0000 SINGLE 5 00 NUMERIC_REAL 5 00 SINGLE 0 00 NUMERIC_REAL 0 00 1 00e 009 1 0000 NUMERIC
12. provide a means of using the STORE function of the instrument A specific location is specified by anumber between 1 and 20 A text string follows the number and is added as anote to the stored data The string must be in single or double quotes and separated from the number by a comma For example K156 Issue No 1 B SCPI Communications Protocol B 11 MEM STORE 6 This is good data MEMORY STORE NEXT simply stores the contents of the display in the next location together with the specified note added For example MEM STORE NEXT This is good data TEST This is a self test facility and should not be used DISPLAY provides complex very advanced features to control the instrument s display It is not recommended for normal use SOURCE PRESSURE LIMIT provides access to the setting of the instrument pressure alarm limit The limit may be set to a value via the AMPLITUDE command and enabled or disabled using the STATE command For example SOURCE PRESSURE LIMIT STATE OFF turns the limit off SOURCE PRESSURE LIMIT AMPLITUDE 15 0 sets the limit to 15 in the current pressure units SOURCE PRESSURE LIMIT STATE ON turns the limit on K156 Issue No 1 B 12 DPI 605 IS User Manual READ provides access to values measured by the instrument For example READ PRESSURE returns the current pressure reading READ TEMPERATURE would return the current reading of temperature If temperature was no
13. 0 00 SI 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE SINGLE SINGLE 1992 K156 Issue No 1
14. Logger and store a large number of complete screen AUTO f LEAK i displays The Data Log option provides two basic options Record and Replay In addition two Data Log utility options are provided Directory and Delete When the Data Log function has been selected the function keys F1 to F4 are allocated to the Record Replay Directory and Delete functions respectively This section provides a basic overview of the options Details of the operation of the Data Log facility are given in Section 4 14 K156 Issue No 1 3 Familiarisation 3 23 Record The Record F1 option is used to store all data measurands displayed at the time that the Data Logger is TEST CAL ATEST triggered When the Record option is selected the display reads as follows Will log the current display 9 11 91 Continue Quit When the Continue F1 option is selected two basic facilities are provided o Entry of a reference number file ID number for each Data Log sequence This file number can be either alphabetical numerical or a combination of both Alpha characters are entered by means of the Alpha T F1 Alpha J F2 amp F3 and F4 keys Alpha T F1 scrolls forwards through the alphabet and Alpha J F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the F3 and F4 keys respectively Numeric entries are entered directly from the numeric ke
15. This section which describes the use of the DPI 605 IS instrument has been structured on a functional basis The DPI 605 IS calibrator can generate and indicate pressures up to 20 bar gauge The instrument s primary pressure indicator range limited to 20 bar gauge 21 bar absolute with the barometric option can be extended to 700 bar by the use of external transducers The DPI 605 IS indicator can indicate pressures up to 350 bar gauge or absolute with barometric option fitted Its operating range can be extended to 700 bar by means of external transducers K156 Issue No 1 4 2 DPI 605 IS User Manual A digital multimeter DMM comprising an auto ranging 0 50 V d c voltmeter and single range 0 55 mA milli ammeter is built into the instrument to permit the monitoring of voltage and current signals The instrument has a temperature measurement facility using an optional external PT100 platinum resistance probe An RS 232 interface is also provided but this should only be used in a SAFE area 4 3 Menu Icons In the following sections the menu driven operations of the instrument are supported by icons to show the structures associated with each command A typical icon is shown below together with a description toa lt lt First menu level System Function Defaults nn e Sub menu level Option selected at this level is shown in Cal Test blue e Units Sub menu level Options shown indicate all the
16. 4 12 3 Data Log Replay Operations To replay Data Log results data select the Replay option F2 from the Data Log menu A directory showing the first page of Data Logged files is displayed e g File ID Data Log Free Blocks 10846 gt AF 26123 22 02 93 9 23 40 AX 27000 22 02 93 9 56 10 AY 28000 22 02 93 11 16 20 Page Down To replay a Data Log file select the required file by means of the Page Up F1 Page Down F2 T F3 or 4 F4 cursor keys and press the ENT key on the numeric keypad Four display modes are now provided as follows Select replay format Display Graph Print Upload Display Selection of the Display option F1 writes the data associated with the first location of the selected Data Log file to the display e g Location 1 of 20 AY28000 Previous Next 16 07 59 05 08 92 To display the data relating to all subsequent locations ue press the Mextkey If an out of range location is requested Replay the instrument remains at the current location and flashes us an error message Number out of range Previous displays data in the previous location Repeated pressing en of the Previous key causes the instrument to step back Print one location each time Alternatively a location can be Upload directly entered via the keyboard and willbe displayed when Periodic ENT is pressed At the end of file the following display is Next printed e g 20 of 20 End AY 28000 Previous Next
17. Assigning three function keys to Blank provides the facility of setting up the instrument for single pressure unit operation Spec This option is used to set up any special conversion factors required for the pressure units The conversion factor Pascals to Special Units is entered from the numeric key DATA STORE pad Temperature This function is used to set the display to read either degrees Fahrenheit F or degrees Celsius C K156 Issue No 1 TE 3 18 DPI 605 IS User Manual 3 10 2 Set up Contd ce Comms SMTCH V AUTO V LEAK TEST _CAL_ TEST DATA STORE RE LOG CALL This function is used to set up the RS 232 communications parameters ON OFF Selecting Comms from the Default menu set up provides the facility to set up the Baud rate F1 Parity F2 and Handshake F3 parameters for the RS 232 communication protocol Baud rate This option allows the baud rate to be set up via the Previous F1 and Next F2 keys The current setting is indicated by an arrow A typical Baud rate display is shown below Select baud rate 110 600 150 1200 300 2400 e 4800 9600 19 2K Previous Next After setting up the required baud rate press Exit Menu to return to the Comms sub menu Parity This option allows the RS 232 parity checking to be set up Three options are available Odd F1 Even F2 and None F3 Handshake Selection of this option allows the RS 232 ha
18. P I N number 123 is installed The P I N number can be changed by the New Pin option of the user Cal Test menu To change a P I N number proceed as follows Switch the instrument ON Press the SET UP key Select Cal Test from the Set up menu by pressing the F4 function key Enter the existing P I N number and press ENT Select New Pin from the user Cal Test menu by pressing the F3 function key The instrument now prompts for a new P I N number a typical dialogue being shown below The numbers shown in brackets e g lt 27 gt represent keyboard entries made by the operator followed by operation of the ENT key located on the numerical keyboard Enter new P I N number lt 27 gt Enter on its own is no P I N On entry of the required P I N number the instrument requests verification of the new pin number prior to setting it Enter the required new Pin number in response to the following prompt e g Verify new P I N number lt 27 gt The same P I N number is entered again and providing the verification P I N number agrees with the requested new P I N number the instrument accepts the new number giving the message Verification OK If the entered P I N number does not match the required new P I N number no new P I N number will be set and an error message is displayed as follows Pin number does not agree The instrument then exits from the SET UP mode K156 Issue No 1 G Calibration 6 3 6 2 Ins
19. The instrument is designed to be completely safe when used with Options and Accessories supplied by the manufacturer for use with the instrument Toxic Materials During normal operation it is not possible for the user to come into contact with any hazardous substance which might be employed in the construction of the instrument The use of hazardous materials in the construction of this instrument has been minimised Care should however be exercised during maintenance and the disposal of certain parts Memory Back up Supply Employs two batteries containing Lithium completely sealed within the instrument These batteries are NOT user serviceable Repair and Maintenance Unauthorised repair may compromise Intrinsic Safety Repairs must be undertaken by competent persons nominated by the manufacturers K156 Issue No 1 Safety iii INTRINSIC SAFETY The instrument is designed to be intrinsically safe when operated in accord ance with the conditions of use detailed in the BASEEFA certification docu mentation as supplied BASEEFA Certificate No Ex94C2046 The instrument complies with the following standards EN50 014 BS5501 Part 1 EN50 020 BS5501 Part 7 The apparatus markings include the code EEx ib IIC T4 where EEx CENELEC approved Hazardous Atmosphere Equipment ib Protection Level ib Zone 1 and Zone 2 use IIC Suitable with Hydrogen Acetylene gas groups T4 Maximum surface temperature of an
20. The response from the instrument are shown in italic SENSE ATMOSPHERIC lt LF gt UNIT MBAR lt LF gt SENSE CURRENT lt LF gt READ lt LF gt READ PRES 993 85 lt CR gt lt LF gt READ CURRENT READ CURR 0 0095 lt CR gt lt LF gt 6 COMMAND AND VARIABLE LISTINGS The following two listings are provided for the advanced user They detail all commands and give information on the variable used by each command It is stressed that these listings are intended for the serious computer literate user who wishes to use the SCPI protocol to its full The slightly less ambitious user may however having thoroughly read the preceding Sections of this manual find some helpful information contained in the listings The Function Listing has a entry for every path through the command tree from the root to the tip of each branch Each path represents a command sequence The entries are listed in alphabetical order but starting with the so called Common Commands Each path or command sequence is usually followed by a pseudo description For example the command sequence SYSTEM KEY is followed by the pseudo description simulate_key_cmd After the pseudo description the names used internally by the instrument for variables associated with the command sequence are given in order Also provided is the type of each variable for example Boolean String Numeric_Real or Enumeric meaning enumerated The Variable Listing has a entry for every varia
21. a o Switch the instrument to ON Press the SET UP key Select Defaults F1 from the Set up menu Select Units F1 from the Defaults menu Select Spee l F2 from the Default Units Selection menu The instrument now displays a prompt showing the current conversion factor and requesting entry of anew factor e g Pascals to Spec Factor O 100 00 o Enter the required conversion factor on the numeric keypad and press ENT o Press Exit Menu four times to exit Set up Assign a function key to Spec l and select Units on the Pressure keypad and select Spec NOTE If the Spec conversion factor is changed whilst the Spec l Units factor is selected the Spec Units factor will have to be re selected in order to make use of the new conversion factor K156 Issue No 1 4 Operation 4 9 Temperature Instruments are supplied with their temperature scales set to degrees Celsius C To change the default setting proceed as follows Bsa 2 Switch the instrument to ON Defaults E gt Press the SET UP key o tatus o Cal Test BET o Select Defaults F1 from the Set up menu e Ci coe o Select Units F1 from the Defaults menu e More FE o Select Temperature F3 from the Defaults Units Selec Spel tion menu o Temp o Selecttherequiredtemperature units C F1 or F F2 from the Select Temperature Units Menu 4 4 2 Set up Data Communications Comms To set
22. provides access to various functions SYSTEM KEY is used for key press simulation and is followed by one or more of the key names below in single or double quotes More than one key press can be achieved simultaneously by stringing key names together separated by a comma Fa E2 E3 Fa EXIT RANGE UNITS LIMITS PPROCESS ZERO VOLTS MA TEMP PROCESS SETUP DATALOG LEAKTEST SWITCHTEST Py STORE RECALL AUTOCAL o 4 au 3 ng u 6 zu gr gr DEL ENT K156 Issue No 1 B 16 DPI 605 IS User Manual For example SYSTEM KEY SETUP F4 is the equivalent of pressing the Setup key followed by the F4 key SYSTEM ERROR returns the last error message to be placed in the error queue and removes it from the queue The error queue retains the mostrecentfive errors If the queue overflows then a queue overflow error message is added to the queue as the sixth entry in the queue STATUS is a command provided by SCPI which is essentially only relevant where connection to the instrument is made in IEEE 488 style not RS 232 This command should not therefore be used UNIT PRESSURE provides the ability to set the pressure display to one of the following units For example UNIT PRESSURE TORR w
23. 0 DPI 605 S W Version 0 53 Last Cal Date 17 04 92 Pressure Range 20 bar g Device Under Test File Identity 2 Date 14 07 92 Time 9 55 52 Serial Number 11234 DUT Full Scale 20 00000 File Type AutoCal File Test Results PRESSURE ELECT TIME bar Milliamps 0 61675 0 007 9 55 53 0 59540 0 007 9 55 56 0 54291 0 007 9 56 00 0 51893 0 007 9 56 03 Printed 9 57 42 14 07 92 Authorised NOTE In the event of any data communications problems being encountered the Print function can be aborted by pressing the Exit Menu key Upload Selection of Upload option causes all data associated with the selected Data Log file to be uploaded to an external Period system via the RS 232 port This file is sent as ASCII text SE and as such is readily readable and importable into common De spread sheets such as Microsoft Excel etc The RS 232 er port is configured from the Set up menu underthe Defaults e Graph Comms options e Print FPS Note In the event of any data communications problems being encountered the Upload function can be aborted by pressing the Exit Menu key K156 Issue No 1 4 52 4 13 DPI 605 IS User Manual Use of AutoCal Facility The AutoCal option enables the instrument to automatically store the results obtained from a large number of calibration runs The function has two basic modes of operation Manual and Auto The Auto option permits the instrument to
24. 0 00 current_op_state ELECtrical ON Default OFF current_value 1 00e 011 NUMERIC_INT delete_nam disp_string display_page_val 0 00 8 00 display_stat Default ON display_x 0 00 display_y 0 00 dlog_init_str dlog_init_type ELN NSP LSP LSAMp ETPN ETEP ESC ELP Default PERCent DEVeunits BOOLEAN 1 0000 1 00e 011 DPI 605 IS User Manual ENUMERIC DEVRdng NUMERIC_REAL 0 5000 ENUMERIC PRESsure OFF NUMERIC_REAL 0 00 SI 1 STRING SI STRING SIN NUMERIC_REAL 0 00 0 00 SINGLE DEVPunits SINGLE SINGLE 0 5000 SINGLE SINGLE 0 00 NGLE NGLE GLE SINGLE BOOLEAN SINGLE NUMERIC_REAL 0 00 0 00 NUMERIC_REAL 6 00 6 00 NG SIN ENUMERIC NSAMp LE ETEN NE ETPP ESO SINGLE SINGLE GLE SINGLE K156 Issue No 1 B SCPI Communications Protocol og_s 0 00 1 00e 010 filter_stat Default OFF CMH20 FTH204 INHG LB FT2 MMH20 PSI SPECIAL Default BAR Default goto_limit 1 00e 011 goto_value 1 00e 011 graphics_state Default ON og_samples_val 0 00 9999 00 0 00 _start_mins og_threshold_val KG CM2 MBAR NUMERIC_REAL 0 00 59 00 0 00 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 0 00 1 00e 010 0 00 NUMERIC_REAL 9999 00 0 00 BOOLEAN SUFFIX_DATA CMHG HPA INH2O MH2O MMHG MPA BOOLEAN ENUMERIC F4 F1 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0
25. 00 _REAL 0 00 C_REAL 0 00 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 MERIC DG PUNit UMERIC_REAL 0 00 ERIC_REAL 60 00 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 RDG PUNit SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE 0 00 SINGLE 60 00 SINGLE 0 00 SINGLE 0 00 SINGLE K156 Issue No 1 B SCPI Communications Protocol SINGLE 300 00 acal_wait 1 0000 NUMERIC_REAL 359999 00 300 00 STRING acc_str SINGLE adif_val STRING SINGLE alarm_stat BOOLEAN SINGLE Default OFF alarm_value ERIC_REAL SINGLE 1 00e 01 0 00 0 00 2 ERIC_REAL SINGLE 1 00e 01 d 0 00 0 00 av_high_volts MERIC_REAL SINGLE 1 00e 01 1 0 00 0 00 NUMERIC_REAL SINGLE 1 00e 01 1 00e 011 0 00 0 00 av_low_ volts NUMERIC_REAL 1 00e 01 he SINGLE 00e 0 0 00 0 00 bat_ C_REAL SINGLE 0 00 10 00 7 50 7 50 bsl_fail_str STRING SINGLE bsl_fullscale 1 00e 011 NUMERIC_REAL SINGLE 1 00e 011 0 00 0 00 bsl_ STRING SINGLE bs STRING SINGLE bel ENUMERIC RDG FS EUNit fault PUNit SINGLE bytes_avail NUMERIC_REAL 0 00 65536 00 65536 00 SINGLE 65536 00 bytes_ NUMERIC_REAL 65536 00 0 00 0 00 SINGLE NUMERIC_REAL SINGLE 1 00e 011 0 00 0 00 calc_data_value 1 00e 011 B 33 K156 Issue No 1 B 34 calc_form NONE DEVFs Default NONE calc_stat Default OFF contrast_value
26. 1 1 2 Applications nassen naeh 1 2 1 3 Instrument Specification zu iin ae nn 1 3 1 4 Equipment Shipping Uert 1 5 2 FUNCTIONAL DESCRIPTION u een 2 1 2 1 Installation nal aan 2 4 2 1 1 Input Output Connections 00 cece c cece ceeeeeeeeeeeeteeeetsseeeenseeesteeeentieeees 2 4 2 1 2 Pr amp ss re CONMECTIONS we ee denne ies Ee 2 4 2 1 3 Ele trical Connections si 2 4 2 1 4 Communication Interface Connections sssssssisseiiesiissiinrirerrrrrrrrernin t 2 8 2 1 5 Connection of External Transducers 2 10 2 1 6 Digital Multimeter Connectons 2 11 2 1 7 Switch Test and Data Log Trigger Connections ssssisssissssieerriersrnernie 2 12 2 1 8 Temperature Probe Gonnections una 2 13 3 FAMIILIARISATION vu na ne ne 3 1 3 1 Equipment Controls Indicators and Connectors nnenenneen 3 1 3 2 PIEUMALCS Hu ica nenne te nee fade penses des Manet here dee d se 3 3 3 3 Electrical Connechons ss sssinsskissskiseiitttitttt intik ant tEn EE EEEE EEEE AEE EEEE EEEE Enne anena 3 6 3 4 BIIEN EE EE E 3 7 3 5 e EE 3 8 3 6 Elle deu 3 9 3 7 NUMERIC Key EE 3 10 3 8 Pressure Key Functions kennen here een 3 10 3 9 Electrical Input Key FUNCIONS u lan 3 12 3 10 Mode Select Keys Blue Keys srsrsiscnrrrrirsniisiinnniiian anaa 3 16 3 10 1 EMU eege tere ee een 3 16 3 10 2 SETUP EE 3 16 3 10 3 SWITCH Test ana a taste she amener 3 22 3 10 4 Data LOG nrs omaia a E EA io RA E NE EEEE 3 22 3 10 5 keak EE 3 31 3 10 6 STOLE paaa eaa SEENEN
27. 2 Printer o Upload This option is used to transmit Upload Data Log data to an external system via the RS 232 port Note that the RS232 port must be configured in the correct way for the external system RS232 configuration is carried out under the Set up option Comms Directory The Directory option provides a list of all the completed Data Log operations that have been stored in the instrument s memory These will be listed in the order in which the Data Log operations were carried out not in file ID number order A typical directory listing is shown below K156 Issue No 1 3 Familiarisation 3 29 File ID Data Log Free Blocks 10846 A17966 28 01 93 15 37 10 A17222 28 01 93 15 40 03 C22713 28 01 93 15 51 32 C070842 28 01 93 15 51 32 B2 28 01 93 15 58 17 Page Up Page Down A The e g Free Blocks 10846 legend gives an indication of remaining memory space and the first five entries in the directory are displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward to the next page or back to a previous page ofa directory listing The Exit Menu key is used to return to the main Data Log menu When first entering the Data Log functions itis good practice to interrogate the directory This will enable the operator to determine what file ID numbers have already been used since an attempt to use an existing file ID nu
28. 35 50 The setup block does the following things Adds an info line to the result file Prompts the use to enter his employee number and adds the prompt and answer to the results file Sets the instrument to internal pressure range Sets the pressure units to psi Selects the voltmeter The ammeter or thermometer are the other options Prompts user to set power supply to 5 V The test block does the following things Prompts the user to enter the ambient temperature Displays the message Please connect the device under test Prompts the user to turn on power Displays the message Please check out basic operation Instructs the user to go to 20 psi within 0 1 psi Performs a Leak Test with a 5 second Wait Time and a 10 second Test Time Instructs the user to go to 9 different pressures the first of which for example 0 psi 0 1 psi Displays the message All results are stored K156 Issue No 1 A AutoCal A 17 The end block does the following things Displays the message Please disconnect the device under test Prompts the user to turn off supply voltage Performs a BSL analysis on the results using a fullscale of 10 psi with a specified permissible maximum deviation of 0 1 psi with the error expressed as a percent of fullscale Displays the message Test is now complete K156 Issue No 1 WW A 18 DPI 605 IS User Manual o Example 1 Test Program ADIF ABCDEFGHIJKLMNOPOR 12
29. Device Type gauge DUT Full Scale 7 00000 TSL Results Rslt 0 095 Spec 0 15 mA PASS Ofst 5e 94 mA Grad 1e 99 mA bar Test Results PRESSURE ELECT TIME bar mA 0 00005 0 093 13 54 50 0 00005 0 093 13 54 51 0 00005 0 093 13 54 52 0 00005 0 094 13 54 53 0 00005 0 095 13 54 54 Printed 13 55 23 18 03 93 Authorised K156 Issue No 1 A AutoCal A27 o Example 2 SCPI upload of Result File ADIF Druck PTX500 987654321 gt 1 P 0 STD VERSION 1990 0 IDENTIFY DATE 18 03 93 TIME 13 54 17 DUTCH DEVICE_TYPE GAUGE FULLSCALE 7 00000 DIMENSION PRESSURE TYPE EXPLICIT UNITS bar TRANSDUCER_FS 20 00000 TRANSDUCER_TYPE GAUGE DIMENSION ELECTRICAL TYPE EXPLICIT UNITS mA FLOW ON DIMENSION TIMESTAMP TYPE EXPLICIT DATA ACAL VALUES 0 00005 0 093 13 54 50 0 00005 0 093 13 54 51 0 00005 0 093 13 54 52 0 00005 0 094 13 54 53 0 00005 0 095 13 54 54 INFO TSL Results INFO Rslt 0 095 Spec 0 15 mA PASS INFO Ofst 5e 94 mA Grad 1e 99 mA bar K156 Issue No 1 A 28 DPI 605 IS User Manual K156 Issue No 1 B SCPI Communications Protocol APPENDIX B SCPI COMMUNICATIONS PROTOCOL K156 Issue No 1 B 1 B 2 DPI 605 IS User Manual INTRODUCTION The instrument s RS 232 port provides for connection of a printer and also for connection of a computer When the instrument is connected to a printer printing is initiated b
30. File ID CERO2 Continue Data Log Parameters Switch Test Open at 14 50 File ID CERO3 Continue Figure 4 12 Periodic Mode Summary Screens Logging Trigger Logon Periodic time 00 00 20 Logging Trigger Logon Periodic time 00 00 30 Logging Trigger Logon Periodic time 00 00 30 4 43 Example 1 After Continue F1 has been pressed will log at 20 sec intervals from present time terminating at 14 00 Example 2 After Continue F1 has been pressed will log at 30 sec intervals starting when pressure rises through 10 bar Stop after 20 samples have been taken Example 3 After Continue F1 has been pressed will log at 30 sec intervals starting when switch contacts connected between A and B first open Stop at 14 50 or following Stop command F4 from key board K156 Issue No 1 4 44 DPI 605 IS User Manual Data Log Parameters Start at 14 30 Stop 12 Samples File ID CERO4 Continue Data Log Parameters Start Logic Test ve edge Stop 50 Samples File ID CERO5 Continue Logging Trigger Logon Periodic time 01 00 00 Logging Trigger Logon Periodic time 00 01 00 Example 4 After Continue F1 has been pressed will log at 1 hourly intervals com mencing at 14 30 Stop after 12 Samples or following the Stop command F4 Logger would usually be used with power adaptor where a protracted time scale is involved Exam
31. Setup Block EUNIT To represent the selected electrical unit RDG To represent percent of reading FS To represent percentage of full scale e The fourth argument is a string of up to 40 characters which can be displayed when the TSL calculation is completed by the instrument and the specified deviation has been met e The fifth argument is also a 40 character string which can be displayed when the TSL deviation exceeds that specified in arg2 The TSL command can only be used in the End Block and only if three or more points have been logged during execution of the Test Block Execution of the command results in the instrument calculating the Terminal Straight Line TSL for the logged points The deviation of each actual point from the TSL is then calculated The worst case calculated deviation from the TSL is then displayed together with the specified deviation arg2 followed by either PASS or FAIL K156 Issue No 1 WW A 14 DPI 605 IS User Manual Four options are provided TSL Accept F1 Key Notes F2 key this shows the pass fail text arg4 or arg5 Details F3 key Displays Gain Offset of TSL Results F4 key displays worst case deviation from the TSL and PASS or FAIL The results of TSL calculation i e worst case deviation offset and gradient of Terminal Straight Line TSL together with the specified permissible deviation are presented in print out of results up
32. Tare process is now displayed e g lear Manual On Peak Display Off Clear On Off Enable the Peak function by pressing the On F3 key The current peak display can be reset by operation of the Clear F1 key The Peak function is disabled by pressing the Off F4 key Note that the Peak function may have to be re selected to turn off the facility or to clear the peak display K156 Issue No 1 4 30 DPI 605 IS User Manual 4 6 2 Selection of Pressure Process Functions Contd F S The F S key is used to reconfigure the pressure display to read percentage of Full Scale rather than pressure units To select the F S function proceed as follows o Tare o Peak FS More Manual On Off cH HE He HE Reading Select Process by pressing the PROCESS key located in the Pressure keypad Select the F S F3 key The F S display menu is now displayed and will indicate current function status e g 0 0 00000 o FS 20 0000 bar Reading On Off e Set the desired value for 0 either by pressing ENT to accept the current value in the status line or Reading F1 to enter the current pressure value as 0 Alternatively enter a numeric value on the keypad followed by ENT o Set the desired value for 100 either by either pressing ENT to accept the current value in the status line Reading F1 to enter the current pressure value as 0 Alternatively enter a numeric val
33. e g RANGE ON SWITCH ON PRESS VAC ON UNITS ON AUTOCAL ON VOLTS ON LIMITS ON LEAK ON TEMP ON PPROC ON DATA LOG ON ZERO ON STORE ON E PROC ON RECALL ON PRINT ON SETUP ON Up Down On Off Initially the cursor will be positioned over the Range key flashing over the first character of the status indication ce Use the Up F1 and Down F2 keys to position the cursor over the desired key and then use the On F3 or Off F4 keys respectively to enable or disable that particular key e To exit the Key Locking facility press Exit Menu twice il K156 Issue No 1 6 12 DPI 605 IS User Manual K156 Issue No 1 AutoCal APPENDIX A AUTOCAL A 1 K156 Issue No 1 WW A 2 DPI 605 IS User Manual The following sections provide a definition of the functionality provided by the AutoCal feature of the DPI 605 PURPOSE AutoCal essentially provides the user with the ability to store results records of displayed values in a file with a defined file identity The file can then be printed or uploaded via the RS 232 port to a computer for storage or analysis OPERATION Two basic modes of operation are provided Manual Mode Manual Mode enables the user to configure the instrument in any way and store any number of readings Itis perhaps worth mentioning here that the Electrical Window may be selected as manual number entry thereby catering for dial gauge or indicator calibrat
34. follows e Calibrator Versions o Open the Vent Valve o Fit the pressure output line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight Indicator Versions o Open the Vent Valve o Check that the pressure supply line is isolated before connection to the instrument o Fit the pressure supply line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight 4 5 3 Electrical Connections Switching ON and OFF The instrument is switched on by means of the ON OFF key located on the keyboard After switch on a short initiation period follows during which the valves Calibrator only are set to the correct states When the instrument displays pressure and electrical readings it is ready for operation A Low Battery warning is given when the internal batteries are approaching exhaustion An appropriate operating time of 1 minute is left when the Battery Low warning is given K156 Issue No 1 4 Operation 4 15 Battery Removal and Replacement e Check Battery Status The DPI 605 IS calibrator and indicator instruments are powered by Alkaline D Cells The battery status can be checked from the Setup menu as follows e Select Setup by pressing the Setup key Defaults B
35. from the calibration adjustment menu provides the facility to set up the Ratio Reference within the instrument The ratio reference is used by the instrument for measuring the output from the internal transducers except the barometric transducer and also any external transducers used It is therefore important that the ratio reference is correctly set up prior to any calibration adjustment of the instrument pressure ranges The procedure takes the form of measuring transducer supply nominally 5 Volts and measuring Span Cal nominally 0 1 Volt and entering these values via the key pad Both signals are to be found on the main printed circuit board connector PL15 Ground for both signals is on pin 3 the transducer supply being on pin 1 and the Span Cal signal on pin 2 6 3 Calibration of an External Pressure Transducer To calibrate an external pressure transducer proceed as follows o Defaults Battery Status Cal Test Cal Test New Pin Pressure Electrical Ratio He EO o Switch the instrument to ON Connect the external transducer Press SET UP key and select Cal Test and enter the PIN number Select Cal from the Cal Test Menu Select Pressure from the Pressure Cal adjustment menu and select External K156 Issue No 1 G Calibration 6 7 6 3 1 Selection of External provides a listing of the external transducers available e g External Transducer SN AY13672
36. inlets and outlets to prevent the ingress of particulate matter Every care should be taken to prevent the ingress of fluids particularly when using the instrument for vacuum applications In applications where there is a high risk of fluid ingestion it is advisable to fit an in line filter liquid separator trap between the external system and the instrument Should the instrument become contaminated with fluid proceed as follows refer to Fig 4 9 Open the Vent Valve 2 and disconnect any connections to the Pressure Port 5 Ensure that the instrument is set to Pressure mode NOT Vacuum mode Switch the instrument OFF Screw the Volume Adjuster 4 fully in minimum volume and close the Vent Valve 2 Invert the instrument and pump out as much contaminant as possible from the Pressure Port For indicator versions blow out with filtered air line Using a screwdriver remove the filter from the Pressure Port 5 and the Vent Port 1 do not remove the filter in the Breather Port Seal the pressure port with a suitable blanking plug and pump up the pressure in the instrument to approximately 20 bar Open the Vent Valve 2 and the contaminant will be blown out through the Vent Port 3 Repeat a number of times until no further contaminant is seen to be blown out Remove the base of the instrument and check that no bubbles of fluid remain in the pipelines Refit filters to the pressure and vent ports and check instrume
37. made redundant by using the key press simulation commands This however has a number of disadvantages One is that in general more individual commands have to be sent using key press commands than using explicit commands More significantly however the explicit commands will always perform the intended function no matter where the instrument is in its menu structure when the commands are issued regardless of the instrument s software version with version 2 00 or above The same is not true for the key press simulation approach therefore it is recommended that where possible use of the key press simulation command should be avoided Use of the SCPI commands may seem rather complex particularly to those that are not familiar with the operation of the instrument In this document the SCPI commands are explained but explanation of the instrument functions which they control is to be found elsewhere It is therefore strongly recommended that those wishing to use the instrument via the RS 232 port should first become competent at using the instrument via the keyboard refer to Sections 3 and 4 For those new to the SCPI standard the book A Beginners Guide To SCPI by Barry Eppler Published by Addison Wesley Publishing Company Inc for Hewlett Packard ISBN 0 201 56350 9 is a good introduction to the subject K156 Issue No 1 B 4 DPI 605 IS User Manual COMMAND SYNTAX The individual commands take the form of one word in
38. numbers have already been used since an attempt to use an existing file ID number to record a Data Log operation will result in the display of an error message File already exists This Data Log function enables files to be detected from the Data Log memory Selection of the function provides a directory listing and four cursor keys Page Up F1 Page Down F2 T F3 and J F4 e g K156 Issue No 1 4 40 DPI 605 IS User Manual File ID Data Log Free Blocks 10846 28 01 93 15 37 10 28 01 93 15 40 30 28 01 93 15 43 16 28 01 93 15 49 32 28 01 93 15 58 29 Page Down The Page Up and Page Down keys are used to select the appropriate directory page and the T L keys to select the file on the page To delete the selected file position the cursor against the file name and press the ENT key on the numeric keypad A warning is displayed as follows Delete Are you sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation can be aborted by operation of the Mo F4 key 4 12 2 Data Log Record Operations To carry out a Data Log Record operation proceed as follows o Select Record F1 from the Data Log Menu prompt to Continue F1 with the Data Log function or to Quit F4 is now given e g Will log the current display 14 22 46 Continue Quit oe Press the Continue F1 key A file number is requested for the new Data Log file as follows e g Enter Fil
39. results collected Typical directory listings are as follows AutoCal Tests Free Blocks 9212 TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Down Page Up N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 K156 Issue No 1 TES 3 38 DPI 605 IS User Manual 3 10 8 AutoCal Contd AutoCal Results Free Blocks 9196 TS150000000000000001 N1234543670111111112 gt 1 TS150000000000000002 N1234543670111111113 TS150000000000000008 N1234543670111111114 gt 1 TS150000000000000032 N1234543670111111115 gt 1 TS150000000000000033 N1234543670111111116 gt 1 Page Up Page Down The e g Free Blocks 9196 legend gives an indication em AUTO LEAK of remaining memory space and the first five entries in the KE directory are displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward Page Down or back Page Up through the directory listing The Exit Menu key is used to return to the main AutoCal menu Please refer to Section 3 10 4 Data Log for information regarding Memory Space The gt 1 symbol in the results directory indicates the result obtained from a first test A gt 2 symbol indicates the results of the last test on a device Delete This AutoCal function enables files to be deleted from the AutoCal mem
40. start either imme diately now at a future period in time later or following any one of a number of external events condition The function associated with the periodic Trigger Mode are described in Section 3 Figure 4 11 shows the sequence of parameter selection for the Periodic Mode and Fig 4 12 typical summary screen displays K156 Issue No 1 4 42 DPI 605 IS User Manual 4 12 2 Data Log Record Operations Contd SELECT PERIODIC ENTER PERIOD HRS MIN SEC SELECT STOP EVENT STOP TIME F1 SAMPLES F2 ENTER ENTER STOP TIME NUMBER HRS MIN SEC SAMPLES SELECT START EVENT CONDITION F3 LATER F2 NOW F1 SWITCH F1 LOGIC F2 THRESHOLD F3 SELECT SELECT SOURCE ENTER STATE OF OF THRESHOLD START TIME SWITCH TRIGGER HRS MIN SEC PRESSURE F1 ELECTRICAL F2 SI a E T E z a w w ENTER ENTER a D THRESHOLD THRESHOLD 9 9 A 2 LEVEL LEVEL D hr O Ki a SELECT SELECT TRIGGER TRIGGER DIRECTION DIRECTION W W gt Z gt lt E lt E g 8 S 8 2 2 2 Li Y v M M Datalog Parameters Logging Trigger Start Stop Summary Screen File ID Continue Figure 4 11 Periodic Mode K156 Issue No 1 4 Operation Data Log Parameters Stop 14 00 File ID CERO1 Continue Data Log Parameters Threshold 10 0000 bar 20 samples
41. tare_value NUMERIC_REAL SINGLE INPut TARE STATe Header Suffix 2 1 1 tare_state_cmd state BOOLEAN SINGLE B 23 K156 Issue No 1 B 24 DPI 605 IS User Manual Put TARE STATe eader Suffix 2 tare_state_qry Put TARE eader Suffix 2 tare_value_qry INPut ZERO Header Suffix 2 input_zero_cmd LEAK autocal_leak_cmd acal_wait NUMERIC_REAL SINGLE acal_time NUMERIC_REAL SINGLE acal_leak_error NUMERIC_REAL SINGLE EMory CATalog AUTocal cat_autocal_qry EMory CATalog DATalog cat_datalog_qry EMory CATalog TEST cat_test_qry EMory CATalog ALL cat_all_qry EMory DATalog CLOSe dlog_close_cmd EMory DATalog INITialise dlog_init_log_cmd dlog_init_str STRING SINGLE dlog_init_type ENUMERIC SINGLE MEMory DATalog MANual dlog_manual_cmd MEMory DATalog PERiod dlog_period_cmd period_hrs NUMERIC_REAL SINGLE period_mins NUMERIC_REAL SINGLE period_secs NUMERIC_REAL SINGLE MEMory DATalog PERiod dlog_period_qry MEMory DATalog SAMPles dlog_samples_cmd dlog_samples_val NUMERIC_REAL SINGLE MEMory DATalog SAMPles dlog_samples_qry K156 Issue No 1 B SCPI Communications Protocol MEMory DATalog STARttime dlog_start_time_cmd dlog_start_hrs dlog_start_mins NUMERIC_REAL NUMERIC_REAL SINGLE SINGLE MEMory DATalog STARttime dlog_start_time_qry MEMory DATalog STOPtime dlog_stop_time_cmd dlog_stop_hrs dlog_stop_mins NUMERIC_REAL NUMERIC_REAL
42. the Ext Transducer connector Figure 4 5 shows the pin out of the connector 1 5VD 2 E2 CLK 3 E2 DATA 4 AO 9 A1 10 OVD 11 Temp Sense Diode ve 12 Temp Sense Diode ve 5 OVA Bridge Supply ve 6 Bridge Output ve 7 Bridge Output ve 8 Bridge Supply ve Digitally Characterised Only Figure 4 5 External Transducer Connections K156 Issue No 1 4 Operation 4 21 4 5 6 Digital Multimeter Connections Connections to the Voltmeter Millameter are made via the connector panel located on the left hand side of the instrument Item 8 Figure 4 9 Connections to the instrument are made by means of the supplied test leads 4 mm plugs CAUTION IF NOT MAKING USE OF THE TEST LEADS PROVIDED USE LEADS TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS Figure 4 6 shows the connector panel and the connections for Voltage and Current Measurement H switch 4 EE om 4 OG ege H switch 4 T DMM Figure 4 6 Voltage and Current Measurement Connections K156 Issue No 1 4 22 DPI 605 IS User Manual 4 5 7 Switch Test and Data Log Trigger Connections Connections to the Switch Test and Data Log trigger facility are made via the connector panel located on the left hand side of the instrument Item 8 Figure 4 9 Connections to the instrument are made by means of the supplied test leads
43. the SCPI protocol Appendix B of this handbook details the SCPI protocol and command structure The pin out of the RS 232 adaptor lead is shown in Figure 4 8 Memory Reset Option The memory used for storage of Data Log and AutoCal Results files is non volatile and is very resistant to corruption many precautions against corruption having been incorporated within the design of the instrument However under exceptional circumstances an example of which is rapid unex pected loss of power during data Logging but not use of the ON OFF key may cause corruption of the Results file being created at the time The nature of the corruption varies and in rare circumstances it may be necessary to reset the instruments memory This in no way affects calibration or other parameters To reset the instrument s memory proceed as follows o Press the SET UP key o Select Cal Test F4 from the Set up Menu o Enter PIN number 13760 and press the DATA LOG key A prompt will now be displayed as follows e g All logged data will be lost Yes NOTE If the Yes F1 function key is pressed all data stored in the instrument s memory will be deleted o loresetthe memory press the Yes F1 key otherwise press Exit Menu K156 Issue No 1 4 66 4 16 DPI 605 IS User Manual Decontamination Procedures The DPI 605 IS instrument calibrator version is designed to operate by gas compression Filters are provided in all the
44. the display e g 1 of 20 AY 28000 Previous Next 16 07 59 28 02 93 To display the data relating to all subsequent locations press the Next key Alternatively enter the required location directly from the keyboard and press ENT If an out of range location is requested the instrument remains at the current location and flashes an error message Number out of range Previous displays previous data Repeated pressing of the Previous key causes the instrument to step back one location each time Alternatively a location can be directly entered via the keyboard and will be displayed when ENT is pressed At the end of file the following display is printed e g Location 20 of 20 AY 28000 Previous Next 16 08 57 25 02 93 Graph AUTO CAL Selection of the Graph option F2 permits the S Test operator to choose a graphical output of the selected Replay Auto Cal log file to the display The options available di are selected by the function keys F1 to F3 as follows ge P Points E Points PvE e Print AREA These options are Pressure v Points F1 Previous Electrical v Points F2 and Pressure v LE Electrical F3 K156 Issue No 1 4 60 DPI 605 IS User Manual Selection of one of these function keys e g P v Points F1 will display the appropriate graph as follows Graph of Pressure Points Recorded 9 20579 3 77796 0 Points 10 To return to the graph selection menu after displaying th
45. the function press Exit Menu K156 Issue No 1 EE w 3 22 DPI 605 IS User Manual 3 10 2 Set up Contd Cal Test This facility provides access to the instrument s calibration and self test facilities It requires the entry of a password PIN number before entry is permitted Details of the use of this facility are provided in the calibration procedures Section 6 When the instrument is first supplied the allocated PIN number is 123 The calibration facility should be used with extreme caution Misuse of this facility can cause loss of the instrument s calibration Key Locking Facility This feature will allow any of the keyboard keys with the exception of the On Off key to be either enabled or disabled The instrument is supplied with all keys enabled The key locking facility is password protected and is detailed in Section 6 3 10 3 Switch Test This function configures the instrument to test pressure or operated switches When the function is selected and a eben LES CAL TEST pressure switch is connected to the instrument the pres sure display indicates the applied pressure and the status of the pressure switch contacts e g contacts closed When the output pressure is subsequently increased de creased and the switch contacts change state the display records the event e g Switch contacts opened at 3 10 4 Data Log 5 bar ON This function configures the instrument to act as a Data
46. the next character position or left to a previous character position is achieved by the gt F4 and F3 keys respectively Numeric entries are added directly from the numeric keypad The full aloha numeric text is added to the file by pressing the ENT key Following entry of the file ID the instrument prompts for a transducer serial number Alpha numeric followed by the full scale deflection FSD of the transducer under test and the type of transducer Absolute Gauge or Differential The instrument then enters the logging mode An example of a typical dialogue sequence is shown below After each prompt the relevant numerical figures should be entered on the keyboard followed by ENT e g ID number AST 471 Transducer SN lt CER 162 gt Enter FSD of transducer lt 5 gt Transducer Type F2 Gauge After completion of data entry the pressure calibration tests on the device under test are carried out and at each pressure the instrument will record all the measured parameters currently on the display every time the AutoCal Log key F1 is pressed K156 Issue No 1 4 Operation 4 57 Using the Hand pump calibrator versions or by external pressure control indicator versions increase the system pressure until the first calibration pressure is obtained Use the volume adjuster calibrator only to obtain the exact value required If using the Dial Gauge option enter the dial gauge reading on the numeric keyp
47. the query form of the command and instructing the instrument to return a value Commands shown in square boxes have no values associated with them The first few letters of each command are in capitals this is the short form of the command and is returned by the instrument in response to a query For example READ BATTERY returns READ BATT lt value gt The full command should al ways be used when communicating with the instrument Commands shown in square brackets are default commands This means that they will be assumed to be present when omitted e g READ has the same meaning as READ PRESSURE because PRESSURE is a default command Commands which are shown ending in lt 2 gt are those which can apply to either the electrical capabilities of the instrument or the pressure capabilities When these commands are used they are ended with 1 to indicate pressure and 2 to indicate electrical e g SENSE CURRENT INPUT2 ZERO K156 Issue No 1 B 6 DPI 605 IS User Manual would select the ammeter and zero it and the following command e g INPUT1 ZERO would zero the pressure range that was selected at the time of issuing the command In fact the number 1 is a default value and so may be omitted therefore INPUT ZERO has the same meaning as the last example K156 Issue No 1 B SCPI Communications Protocol B 7 LL MAAS FREE Daag HH Trend O MANUA SAM
48. the system pressure to the desired level Use the Volume Adjuster 4 to make fine adjustments of pressure NOTE For Indicator only versions apply an external pressure and set to desired level o Press the Start F1 key The instrument display will now indicate Leak Test Running and start the countdown of the Wait period indicated by the Wait period display counting down to zero After termination of the Wait period the Time display commences a countdown from the set period to zero The measuring time of the Test period is indicated by the display counting down to zero At the end of the Test period the display will indicate Pressure Drop and Leak Rate in the currently selected units K156 Issue No 1 4 Operation 4 35 o f required press the STORE key to store the current information o Press the Reset key F4 to clear the display in readiness for another leak test NOTE If whilst setting up the instrument the display times out indicated by the disappearance of the legends over the function keys press the Leak Test key again to reactivate the function keys 4 10 Pressure Switch Testing The Switch Test function of the instrument allows the operating point of pressure switches to be accurately determined To carry out a Switch Test operation proceed as follows e Ensure that the instrument is depressurised by opening the Vent Valve 2 o Connect the pressure switch to the instrument as shown in Fig 4 10
49. up the instrument s data communications parameters proceed as follows RE 2 Switch the instrument to ON Defaults e o Press the SET UP key Cal Test ie o Select Defaults F1 from the Set up menu Comms e select Comms F2 from the Select Default Settings menu Baudrate Parity Handshake SCPI se HE HE HE Selecting Comms from the Default Settings menu provides a status report of the currently set Comms parameters and the facility to set up the Baudrate F1 Parity F2 and Handshake F3 parameters of the RS 232 communication protocol e g Baudrate 9600 parity none HS Software Baudrate Parity Handshake SCPI K156 Issue No 1 4 10 Defaults Battery Status Cal Test e Units Comms Clock More Baudrate Parity Handshake SCPI He He HE DPI 605 IS User Manual Baud rate This option allows the baud rate to be set up via the Previous F1 and Next F2 keys The current setting is indicated by an arrow A typical Baud rate display is shown below Select baud rate 110 600 4800 150 1200 9600 lt 300 2400 19 2K Previous Next After setting up the required baud rate press Exit Menu to return to the Comms sub menu Repeat Exit Menu operations until the Set up option clears Defaults Battery Status Cal Test e Units Comms Clock More Baudrate Parity Handshake SCPI HEE te Defaults Battery Status Cal Te
50. with the Event trigger mode Figure 4 13 shows the sequence of parameter selection for the Event mode and Fig 4 14 typical summary screen displays K156 Issue No 1 4 46 DPI 605 IS User Manual SELECT EVENT SELECT DATA LOG START LATER F2 SELECT SOURCE CONDITION F3 SWITCH F1 LOGIC F2 THRESHOLD F3 SELECT STATE OF OF THRESHOLD SWITCH PRESSURE F1 TRIGGER ELECTRICAL F2 ENTER THRESHOLD LEVEL OPEN F1 CLOSED F2 NEGATIVE F1 POSITIVE F2 ENTER THRESHOLD LEVEL SELECT TRIGGER DIRECTION NEGATIVE F1 POSITIVE F2 Datalog Parameters File ID Continue SELECT TRIGGER DIRECTION NEGATIVE F1 POSITIVE F2 ENTER START TIME HRS MIN SEC Logging Trigger Figure 4 13 Event Mode NOW F1 SELECT MANUAL LOGGING MODE PRESS STOP TO TERMINATE Summary Screen K156 Issue No 1 4 Operation Data Log Parameters Logging Trigger Switch Test Open Stop 14 00 File ID CER11 Continue Data Log Parameters Logging Trigger Threshold 12 000 mA Stop Single Shot File ID CER12 Continue Data Log Parameters Logging Trigger Login Test ve edge N A File ID CER13 Continue Figure 4 14 Event Mode Summary Screens 4 4 7 Example 1 After Continue F1 has been pressed will log every time the
51. 0 SN Undefined SN KP10031 SN Undefined SN 17667 SN Undefined SN Undefined SN Undefined SN Undefined SN Undefined Previous Delete Select Move the cursor to the required transducer by the means of the Previous F1 and Next F2 keys and press select If the required transducer is not listed in the directory enter its parameters as detailed in Section 6 3 4 The External Pressure Transducer Cal menu will now be displayed e g External Pressure Transducer Cal Linearity Tc 2 Point FS Type SN Two Point Calibration To carry out a two point calibration on an external transducer proceed as follows NOTE This calibration need not be performed if a linearity Cal routine has been carried out see Section 6 3 2 ce Select 2 Point F3 from the External Pressure Transducer Cal menu e Connect the external transducer to an external pressure source and pressure measurement standard deadweight tester oc Apply lowest pressure to the external transducer and in response to the prompt Enter applied Pressure 1 Enter the applied pressure measured on pressure standard on the numeric key pad followed by ENT K156 Issue No 1 ii 6 8 DPI 605 IS User Manual o Press the Accept F1 key to accept the entered pressure o Apply the highest pressure F S to the external transducer and in response to the prompt Enter applied Pressure 2 Enter the value of the applied pressure on the numeric ke
52. 00 BOOLEAN NUMERIC_REAL NUMERIC_REAL NUMERIC_REAL TORR BAR SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE FTH20 INH204 KG M2 KPA MHG PA SINGLE SINGLE SINGLE 0 00 SINGLE 0 00 SINGLE B 35 K156 Issue No 1 B 36 DPI 605 IS User Manual NUMERIC_INT 0 info_string STRING ey_string STRING eak_ STRING eaktest_stat BOOLEAN Default OFF 0 99 00 0 00 eaktime_mins eaktime_secs 0 00 59 00 0 00 ower_electrical 1 00e 011 ower_pressure 1 00e 011 STRING NUMERIC_INT 0 NUMERIC_INT 1 STRING ENUMERIC ABSolute Default GAGE peak data high 1 00e 011 peak_data_low 1 00e 011 peak_stat BOOLEAN Default OFF percent_fs 1 00e 011 eaktime_ NUMERIC_REAL NUMERIC_REAL 0 00 1 0000 NUMERIC_REAL NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 DIFFerential GAUGe NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 NUMERIC_REAL 1 00e 011 0 00 SINGLE SINGLE SERIES SERIES SINGLE SINGLE 0 00 SINGLE 1 0000 SINGLE 0 00 SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE SINGLE SINGLE SINGLE GAGE SINGLE 0 00 SINGLE 0 00 SINGLE SINGLE 0 00 K156 Issue No 1 B SCPI Communications Protocol percent_zero 1 00e 011 period_hrs 0 00 period_mins 0 00 period_secs 0 00
53. 00 987654321 IDENTIFY FS 7 Bar T gauge N Not to be tested on Sundays SETUP SENSE PRESSURE RANGE INTERNAL UNIT BAR SENSE CURRENT INPUT2 FLOW STATUS ON MESS Set Power Supply to 24 V TEST MESS Apply Power to DUT MESS Please test out basic operation PT 0 0 0 2 PT 3 5 0 2 PT 7 0 2 PT 3 5 0 2 PT 0 0 0 2 END MESS Remove Power from DUT MESS Please disconnect the device under test TSL 7 0 15 EUNIT ITS A GOOD ONE ITS BAD MESS Dont forget to open the stop valve K156 Issue No 1 A AutoCal A 25 o Example 2 Print of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID Druck PTX500 Serial No 987654321 gt 1 Date 18 03 93 Time 13 54 17 Device Type gauge DUT Full Scale 7 00000 TSL Results Rslt 0 095 Spec 0 15 mA PASS Ofst 5e 94 mA Grad 1e 99 mA bar Test Results PRESSURE ELECT TIME bar mA 0 00005 0 093 13 54 50 0 00005 0 093 13 54 51 0 00005 0 093 13 54 52 0 00005 0 094 13 54 53 0 00005 0 095 13 54 54 Printed 14 29 29 18 03 93 Authorised K156 Issue No 1 A 26 DPI 605 IS User Manual o Example 2 Upload of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID Druck PTX500 Serial No 987654321 gt 1 Date 18 03 93 Time 13 54 17
54. 1 to 9999 followed by ENT The file is then deleted It should be noted that if a Tests file is password protected then the corresponding Results file will also be protected by the same password 4 13 2 AutoCal Manual Operations 4 To carry out an AutoCal Manual operation proceed as follows auto ca Select Test F1 fromthe AutoCal menu A prompt to select either Manual or Auto is then displayed e g Test Replay Directory dus Select type of AutoCal Manual Manual Auto e Auto Yes o Select Manual F1 A prompt to log either the current Dial Gauge display Yes F1 or to have the facility of manually entering AutoCal Log a Dial Gauge reading F2 against the Pressure display is Stop given as follows e g Log current display Yes Dial Gauge K156 Issue No 1 4 56 DPI 605 IS User Manual Selection of Yes F1 causes Pressure Electrical measurements to be recorded Selection of Dial Gauge F2 permits the manual entry of a pressure level to be recorded against the corresponding instrument pressure reading A request for a File ID is now presented as follows e g Enter File ID Alpha T Alpha gt This file number can be either alphabetical numerical or a combination of both Alpha character are entered by means of the Alpha T F1 Alpha F2 F3 and F4 keys Alpha F1 scrolls forward through the alphabet and Alpha F2 backwards Shifting right to
55. 156 Issue No 1 A AutoCal A 23 Example 2 The example below conveys the following details File ID Druck PTX500 Serial Number 987654321 No PIN protection for deletion of the Test Program and therefore of associated Results Files In the Header Block the following details are shown Full Scale 7 bar Type gauge Note Not to be tested on Sundays The setup block does the following things Sets the instrument to internal pressure range Sets the pressure units to bar Selects the ammeter as opposed to the voltmeter thermometer Turns on flow processing square rooting of the ammeter reading Prompts the user to set the power supply to 24 V The test block does the following things Prompts the user to turn on the power supply Displays the message Please check out basic operation Instructs the user to go to 5 different pressures the first of which for example O bar 0 2 bar The end block does the following things Prompts the user to remove power from the DUT Displays the message Please disconnect the device under test Performs a TSL analysis on the results using a fullscale of 7 bar with a specified permissible maximum deviation of 0 15 bar with the error expressed in electrical units mA because the ammeter was selected for the test Displays the message Dont forget to open the stop valve K156 Issue No 1 WW A 24 DPI 605 IS User Manual o Example 2 Test Program ADIF Druck PTX5
56. 16 08 57 05 08 92 K156 Issue No 1 4 50 DPI 605 IS User Manual Graph Selection of the Graph option F2 permits the operator to choose a graphical output of the selected Data Log file to the display The options available are selected by the function keys F1 to F3 as follows PvT Pressure v Time F1 EvT Electrical v Time F2 PvE Pressure v Electrical F3 Selection of one of these function keys e g PvT F1 will display an appropriate graph as follows e g Graph of Pressure V s Elapsed Time DATA LOG Record Replay Directory Delete 9 20579 e Display Graph Bar Print Upload PvT EvT PvE He HE HE 3 77796 0 Seconds 10 To return to the graph selection menu after displaying the required data press EXIT menu Print Selection of the Print option F3 causes all data associated SE with the selected replay file to be down loaded to a printer Replay To make use of this option a printer must be connected to en the RS 232 interface The instrument software supports Po two types of printer a 40 column portable printer and an 3 Se 80 column printer The printer types are set up under the Print Set up option for Defaults Theinstrumentautomatically e Upload formats the output file for the type of printer in use Atypical printout is as follows K156 Issue No 1 4 Operation 4 51 Calibration Certificate Test Equipment DPI 605 Serial No
57. 250 C and PT 25 for temperature ranges 55 to 800 C Temperature probes supplied with the equipment are terminated with an appropriate connector The pin out connections of the Temperature Probe are given in Figure 2 9 To connect a temperature probe plug the probe connector into the socket labelled Temp Probe located on the right hand side connector panel Drive Sense Drive Sense Figure 2 9 Rear View free plug K156 Issue No 1 2 14 DPI 605 IS User Manual K156 Issue No 1 3 Familiarisation 3 1 3 1 FAMILIARISATION This chapter is designed to familiarise the first time user with the controls of the instrument An overview of the functions of the display and controls is given in this section For the experienced operator the operating procedures are described in Section 4 Equipment Controls Indicators and Connectors Views of the instrument detailing the display and controls are shown in Fig 3 1 These fall into three groups e Pressure source e Input output connectors e Keyboard controls and display The keyboard and display panel layout is shown below Precision Pressure Indicator Calibrator Int FS 20 0000 bar Ammeter FS 55mA 15 23216 0 001 are F1 F2 Ext F3 F4 EN Menu PES Pressure Electrical Input 2 A Rance UNITS voirs mA Le ig N TEMP PROCESS LIM
58. 3 31 3 10 7 Recall nun EES 3 32 3 10 8 ee EE 3 32 4 OPERATION sanierte Lana lan 4 1 4 1 e TEE 4 1 4 1 1 Pressure Safety Instruetions nas ce cvasiciscaiasteasauzesetensveensdbautbuenenieeeanecnd 4 1 4 1 2 Electrical Safety Instructions 4 1 4 2 ELE 4 1 43 Ment Con Scan eege AE EENEG 4 2 4 4 Instrument WEE 4 3 4 4 1 SOTHO MUS nase anne anne ee rennen ee 4 7 4 4 2 Set up Data Communicatons nennen 4 9 4 4 3 Select Printer and Print Screen essien EEE 4 11 4 4 4 Pressure Display Resolution 1 W u u u ssssseseneeeereerernek ennen kr ren ener kernen 4 12 4 4 5 Change On State os ld ananas Ak ej nern Renee 4 13 Continued K156 Issue No 1 VI DPI 605 IS User Manual Contents Continued 4 5 Installation a ana ennemi cine ee 4 14 4 5 1 Input Output Connections irosen aaan EAEE Eai 4 14 4 5 2 Pressure Connections cis An pm iesnu ENNE E 4 14 4 5 3 El ctrical CGnnections sssmneneanno minime quenemerstesimetennen 4 14 4 5 4 Communication Interface Connections sss ssssisseiissisesiinsiinrtirrrrrnrrn nn 4 18 4 5 5 Connection of External Transducers 4 20 4 5 6 Digital Multimeter Connectons sssssssissssisssiieetiiestiaettinrtiinrttnetnnrrinnnnnn 4 21 4 5 7 Switch Test and Data Log Trigger Connections sssisssisssiiesriersereeneen 4 22 4 5 8 Temp rature Prope Connections su nina 4 23 4 6 Gen ratng EM 4 24 4 6 1 Set Pressure Alarm amp Safety Lime 4 27 4 6 2 Selection of Pressure Process
59. 345678901234567 P 9999 IDENTIFY N Situated near main boiler feed T gauge FS 10 0 psi NO 100 mV MP 15 0 psi FD 15 3 93 FT 09 35 50 SETUP INFO TEST PROGRAM COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No SENSE PRESSURE RANGE INTERNAL UNIT PSI SENSE VOLTAGE MESS Set Power Supply to 5 0 TEST NOTE Enter ambient temperature MESS Please connect device under test MESS Apply Power to DUT MESS Please test out basic operation GT 20 0 1 LEAK 5 10 0 01 PT 0 0 0 1 PT 2 5 0 1 PT 5 0 0 1 PT 7 5 0 1 PT 10 0 0 1 PT 7 5 0 1 PT 5 0 0 1 PT 2 5 0 1 PT 0 0 0 1 MESS All results are stored END MESS Please disconnect the device under test MESS Remove Power from DUT BSL 10 0 1 FS Test Passed Please report failure MESS Test is now complete K156 Issue No 1 A AutoCal A 19 Example 1 Print of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID ABCDEFGHIKLMNOPOR Serial No 12345678901234567 gt 1 Date 16 03 93 Time 15 89 36 Device Type gauge DUT Full Scale 10 00000 TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE Enter ambient temperature 21 Leaktest Results End Pressure 0 0004 psi Start Pressure 0 0003 psi Pressure Drop 0 0001 psi Lea
60. 4 11 o o o If required on completion of test press the STORE button to store data associated with the test The display will now show the hysteresis between the operating points of the pressure switch contacts Where a pressure switch has change over contacts repeat the test for the other switch pole i e test both the normally open and normally closed contact sets For pressure switches with multiple contact sets repeat the test for each contact set Press the Reset key F1 to cancel the last test and set up another Press Exit Menu key to quit Switch Test Temperature Measurements Two types of Platinum Resistance Temperature Probes may be used in conjunction with the instrument a PT100 for temperature ranges 55 to 250 C and PT 25 for temperature ranges 55 to 800 C To ascertain which type is selected and to change the selection if required proceed as follows Switch the instrument ON Press the Set up key and select Defaults F4 Press the More F4 key twice and select Temp Probe F3 The instrument reports the currently selected temperature probe and provides the option to select another type e g Temperature Probe PT 100 PT 100 PT 25 Select the appropriate probe by means of either the PT 100 F1 or PT 25 F2 keys Exit the set up mode by pressing the Exit Menu key twice Plug temperature probe into the Temp Probe socket located on the right hand side panel refer to Fig 4 2 6 b
61. 5 IS User Manual 2 1 5 Connection of External Transducers ENSURE THAT THE EXTERNAL TRANSDUCER TO N BE EMPLOYED IS COMPATIBLE WITH THE PRESSURE MEDIA BEING USED BEFORE USING ANY OTHER TYPE OF TRANSDUCER THE USER MUST CHECK THAT THE PERMITTED TRANSDUCER AND CABLE PARAMETERS AS SPECIFIED IN THE CERTIFICATION SCHEDULE ARE NOT VIOLATED External transducers ordered as instrument options are delivered terminated with a suitable connector for direct interfacing with the instrument All Druck supplied External Transducers are approved for use with the DPI 605 IS Two types of external Piezo resistive external transducer may be used with the DPI 605 Digitally Compensated and Non Digitally Compensated Both types plug directly into the Ext Transducer connector Figure 2 6 shows the pin out of the connector 2 E2 CLK 3 E2 DATA 4 AO 9 Al 10 OVD 11 Temp Sense Diode ve 12 Temp Sense Diode ve 5 OVA Bridge Supply ve 6 Bridge Output ve 7 Bridge Output ve 8 Bridge Supply ve Digitally Characterised Only Figure 2 6 External Transducer Connections K156 Issue No 1 2 Functional Description 2 11 2 1 6 Digital Multimeter Connections Connections to the Voltmeter Millameter are made via the connector panel located on the left hand side of the instrument Connections to the instrument are made by means of the supplied test leads 4 mm plugs CAUTION IF NOT MAKING USE OF THE T
62. C REAL SINGLE READ OUTPut output_qry op_value ERIC_REAL SINGLE D TEMPerature d_temperature_qry temperature_value UMERIC_REAL SINGLE READ VOLTage read_voltage_qry voltage_value ERIC_REAL SINGLE READI PRESsurel read_pressure_qry pressure_value MERIC_REAL SINGLE K156 Issue No 1 B SCPI Communications Protocol SENSe CU RRen select_current_cmd SENSe LEAKtest RESet eaktest_reset_cmd SENSe LEAKtest STATe eaktest_state_cmd eaktest_stat BOOLEAN SINGLE SENSe LEAKtest STATe leaktest_ state_qry SENSe LEAKtest TIME leaktime_value_cmd eaktime_hrs NUMERIC_REAL SINGLE leaktime_mins NUMERIC_REAL SINGLE eaktime_secs NUMERIC REAL SINGLE SENSe LEAKtest TIME leaktime_value_qry SENSe LEAKtest WAIT wait_value_cmd wai wai wai t_hrs NUMERIC_REAL SINGLE t_mins NUMERIC_REAL SINGLE t_secs NUMERIC_REAL SINGLE SENSe LEAKtest WAIT wait_value_qry SENSe LEAKtest SENSe SW SENSe SW SENSe SW SENSe SW eaktest_value_qry leak_para STRING SERIES Tchtest RESet switchtest_reset_cmd Tchtest STATe switchtest_state_cmd switchtest_stat BOOLEAN SINGLE Tchtest STATe switchtest_state_qry Tchtest switchtest_value_qry swi ch_para STRING SERIES B 27 K156 Issue No 1 B 28 DPI 605 IS User Manual Se TEMPerature elect_temperature_cmd Se VOLTage elect_voltage_cmd Se PRESsure SENSel PRESsure
63. DMM Current inputs up to a maximum of 55 mA d c are applied between the common COM and terminals Voltage inputs up to a maximum of 50 V d c are applied between the COM and V terminals The voltage function of the DMM is auto ranging 3 4 Display Figure 3 2 shows the display and part of the keyboard of the DPI 605 instrument Functionally the display section is divided into two windows one representing pressure measurements and the other electrical and temperature measurements Measurand Range and Units Measurand e g Dialogue Line Key Annunciators Pressure Window Electrical Window INT FS 20000mbar VOLTMETER FS 50V 0 39000 0 24 gauge D mV Select Pressure Transducer 20 Barg 21 Bar Abs Barometer External n Je EN ele Figure 3 2 DPI 605 Display K156 Issue No 1 TES 3 8 DPI 605 IS User Manual In the Data Log and AutoCal modes the display is used to log data and provide a graphics function For details of these formats refer to the relevant mode description Additionally the display provides four status lines which indicate Measurand Range and Units Transducer selected internal or external for pressure window DMM voltage current or temperature Measurand Displays measured values and indicates any selected processing functions e g Tare Low Pass Filter Flow etc Dialogue Line Displays the currently selec
64. DPI 605 IS User Manual DPI 605 IS PRECISION PORTABLE PRESSURE CALIBRATOR INDICATOR Software Version V3 XX DPI 605 IS Precision Portable Pressure Calibrator Druck Limited 1994 This document is the property of Druck Limited and may not either in part or whole be copied or otherwise reproduced communicated in any way to third parties or stored in any Data Processing System without the express written authority of Druck Limited K156 Issue No 1 ji DPI 605 IS User Manual SAFETY The Manufacturer has designed this product to be entirely safe when operated correctly Please pay close attention to the Safety Instructions outlined on this page and elsewhere in this manual They have been designed to protect the User from personal injury and the equipment from damage means of a hazard warning triangle Specific warnings relating to each section of the manual are given at the beginning of that section i Potentially hazardous operations are indicated in the text by Please observe the installation advice and any operational limitations given in this manual This equipment must only be used for the purpose for which it was designed Pressure Safety On no account permit pressures greater than the Safe Working Pressure to be applied to the instrument The specified Safe Working Pressure for the instrument is stated in the Specification section of this manual Section 1 3 Electrical Safety
65. E SOURCE Figure 5 12 Pressure to Pressure Transducer Calibration SAFE AREA ZENER BARRIER UNIT UNDER V Se TEST meo D 288 Elo ess ECH CONTROLLED PRESSURE 20 BAR MAX ro Figure 5 13 Voltage to Pressure Transducer Calibration K156 Issue No 1 i Io 5 10 DPI 605 IS User Manual ZENER BARRIER EXTERNAL PRESSURE UE SOURCE DOC DOO Jee oo O IS colea Ula ses CONTROLLED PRESSURE O A Figure 5 14 Current to Pressure Transducer A com 5 V 555 Y B gt J 055 oo ea OL oo ee ace lt TEMP SE ELECT gt TO UNIT SYSTEM UNDER TEST Figure 5 15 Pressure Switch Test K156 Issue No 1 D Applications 5 11 Bj Se C ig i 5 V mes Ta S55 Ee ee LL USE IN E T SAFE AREA d ae ONLY TO UNIT SYSTEM UNDER TEST Figure 5 16 Data Logger external trigger K156 Issue No 1 E ia 5 12 DPI 605 IS User Manual K156 Issue No 1 G Calibration 6 1 6 CALIBRATION The DPI 605 instrument is supplied calibrated together with its own individual calibration certificates During the normal course of operation the instrument does not need to be calibrated and so the built in calibration routines are protected by a programmable identification number DIN Se
66. ERIC_REAL SINGLE upper_electrical NUMERIC_REAL SINGLE CALCulate KMATh DEViation Header Suffx 2 1 1 deviation_qry CALCulate KMATh PERCent Header Suffx 2 1 1 percent_cmd percent_zero NUMERIC_REAL SINGLE percent_fs NUMERIC_REAL SINGLE CALCulate KMATh PERCent Header Suffix 2 1 1 percent_qry CALCulate PEAK DATA Header Suffix 2 1 1 peak_data_qry peak_data_high NUMERIC_REAL SINGLE peak_data_low NUMERIC_REAL SINGLE K156 Issue No 1 B SCPI Communications Protocol CALCulate PEAK STATe Header Suffix 2 1 1 peak_state_cmd peak_stat BOOLEAN SINGLE CALCulate PEAKI STATe Header Suffix 2 1 1 peak_state_qry CALCulatel STATe Header Suffix 2 1 calc_state_cmd calc_stat BOOLEAN SINGLE CALCulatel STATe Header Suffix 2 1 calc_state_qry DISPlay CONTrast Header Suffix 4 1 contrast_cmd contrast_value NUMERIC_REAL SINGLE DISPlay CONTrast Header Suffix 4 contrast_qry DISPlay STATe Header Suffix 4 display_state_cm display_sta BOOLEAN SINGLE DISPlay STATe Header Suffix 4 display_state_qry DISPlay WINDow GRAPhics STATe Header Suffix 4 1 i graphics_display_cmd graphics_state BOOLEAN SINGLE DISPlay WINDow GRAPhics STATe Header Suffix 4 1 1 1 graphics_display_qry DISPlay WINDow TEXT CLEar Header Suffix 4 1 1 1 display_clear_cmd B 21 K156 Issue No 1 B 22 DPI 605 IS User Manual DISPlay WINDow TEXT CLEar ALL Header Suffix 4 1 1 1 1 text_cle
67. EST LEADS PROVIDED USE LEADS TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS Figure 2 7 shows the connector panel and the connections for Voltage and Current Measurement e wow H switch 4 HH om A B l COM Ces V Figure 2 7 Voltage and Current Measurement Connections K156 Issue No 1 2 12 DPI 605 IS User Manual 2 1 7 Switch Test and Data Log Trigger Connections Connections to the Switch Test and Data Log trigger facility are made via the connector panel located on the left hand side of the instrument Connections to the instrument are made by means of the supplied test leads 4 mm plugs CAUTION IF NOT MAKING USE OF THE TEST LEADS PROVIDED USE LEAD TERMINATED WITH 4 MM SOCKETS FOR PLUGGING INTO THE INSTRUMENT DO NOT PUSH BARE WIRES INTO THE SOCKETS ES Figure 2 8 shows the connector panel and the connections for Voltage and Current Measurement H switch 4 A B JO e om l COM V ar SWITCH CONTACT SWITCH TEST H switch 4 A B I om I COM Vv DATA LOG USE IN A TRIGGER SAFE AREA ONLY Figure 2 8 Switch Test and Data Log Trigger Connections K156 Issue No 1 2 Functional Description 2 13 2 1 8 Temperature Probe Connections The DPI 605 IS supports two types of Platinum Resistance Temperature Probes a PT100 for temperature ranges 55 to
68. Fit six D size alkaline batteries of the approved type as shown in Figure 4 1 observing correct polarity as indicated Refit the battery compartment cover 2 and tighten the two tamper proof screws 3 with the special key 1 Switch the instrument ON and check the battery status Refer to Section 4 5 3 K156 Issue No 1 4 Operation 4 17 Key Battery Compartment Cover Tamper Proof Captive Screws Approved Type Alkaline Cells 6 off Battery Compartment Ola RIDE ig N USE ONLY APPROVED TYPES OF CELL REFER TO SECTION 4 5 3 Figure 4 1 Battery Removal amp Replacement K156 Issue No 1 4 18 DPI 605 IS User Manual 4 5 4 Communication Interface Connections CONNECTION AND USE OF THIS INTERFACE MUST BE SAFE AREA ONLY REFER TO THE CERTIFICATION SCHEDULE FOR CONDITIONS OF USE NO EXTERNAL CONNECTION TO A HAZARDOUS AREA MUST BE MADE The communications dialogue between the instrument and an external computer system or printer is carried out over an RS 232 interface using the SCPI protocol The instrument is fitted with a Lemo connector and supplied with a Lemo to 9 pin D Type adaptor Figure 4 3 shows details of the connector interconnections and their relationship to the RS 232 protocol The instrument is configured as Data Circuit Terminating Equipment DCE Instrument Control Line Computer Printer Connector Type Connector Type Instrument Signal RS 232 Function Direction Term
69. Functions ssssssiisseisesrissrirerrrnerrrerrn 4 28 4 7 ELE ENEE nn RE 4 31 4 8 Measuring EC 4 32 4 8 1 Connection of External Pressure Transducers s sssessssiiessieereierrererne 4 33 4 9 Leak Testament 4 33 4 10 Pressure Switch Testing een 4 35 4 11 Temperature Measurement sssisssssseiesseesttrestttttnsrtttttrertrtttasrettrnsrrernnne tnt 4 37 4 12 Data LOG ee E A EEA E Eeer 4 38 4 12 1 Use of Data Log Directory and Delete Utilities 4 39 4 12 2 Data Log Record Operations 4 12 3 Data Log Replay Operations 4 13 Use of A toCal Facility cnc cccccucsenssavaceaeetencssened vancetannedsneendnasueaseanctndedencdedncsenne 4 13 1 Use of the AutoCal Directory and Delete Utilities 4 53 4 13 2 AutoCal Manual Operations mean 4 55 4 13 3 Replay of AutoGal Log Filesa nee nassen 4 58 4 13 4 Auto AutoCal Procedures ss ssssisssisestissiinsintttintttinttanttinntrnenrnnnen nna 4 62 4 14 Use ofthe RS 232 POTE aan siaa EEE E E Ei 4 63 4 15 Memory R s t OptiOnssssess ins nei 4 65 4 16 D Contamination Procedur s soesiienanndniautnetendinenen 4 66 4 16 1 Flushing the Instrument s Pneumatic Swstenm 4 67 5 0 APPLICATIONS usa ss rare aan 5 1 5 1 E EE 5 1 5 2 Form of Test 5 1 6 CALIBRATION 23 28 6 1 6 1 Selecti n of New BIN Number ana 6 2 6 2 Instrument Calibration Pressure ss sssisesisssiissintrtiitstintiiinrtrnttintrrnnrrnnnna 6 3 6 3 Calibration of External Pressure T
70. INTERFACE PRESSURE RATING I SPECIFIED TO SUIT APPLICATION Figure 2 2 Simplified Functional Diagram IS Indicator Version K156 Issue No 1 2 4 DPI 605 IS User Manual 2 1 Installation 2 1 1 Input Output Connections Connections to the instrument are made to the appropriate connections as shown in Figure 4 9 Pressure connections are made to the Pressure Port located on the top of the instrument and electrical connections to the two side panels 2 1 2 Pressure Connections To connect to the measuring port proceed as follows Calibrator Versions o Open the Vent Valve o Fit the pressure output line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight Indicator Versions o Open the Vent Valve o Check that the pressure supply line is isolated before connection to the instrument o Fit the pressure supply line to the measuring port fitting a bonded seal between the pressure union and the pressure outlet port The pressure outlet port uses a G1 8 thread Ensure that the coupling is tight 2 1 3 Electrical Connections Switching ON and OFF The instrument is switched on by means of the ON OFF key located on the keyboard After switch on a short initiation period follows during which the valves Calibrator only are set to the correct states When the instrument displays pre
71. ITS PROCESS s RG PrEsivac ZERO eS E Sana J Ke K156 Issue No 1 EE w 3 2 DPI 605 IS User Manual 5 6 C 1 Vent Port 1 2 Vent Valve 3 Hand pump Ga RS232 Volume Adjuster 4 3 6b Temperature Probe 5 Pressure Port 6c Ext Transducer 6 System Connector Panel 8 7 10 7 Breather Port 8 Device Under Test Connector Panel 9 Keyboard Display 10 Reference Port under Figure 3 1 DPI 605 IS Calibrator Controls and Connectors K156 Issue No 1 3 Familiarisation 3 3 3 2 Pneumatics Calibrator Fig 3 1 The DPI 605 IS pressure calibrator pneumatics comprise the following items Hand pump 3 After the Vent Valve 2 has been closed this pump is used to create either a pressure or vacuum at the Pressure Port 5 Selection of pressure or vacuum is made from the Instrument Keyboard 9 Volume Adjuster 4 Used to adjust the volume of the output manifold in order to provide fine adjustments of output pressure or vacuum level Pressure Port 5 Pressure connection to the device under test Vent Valve 2 Used to restore the output pressure vacuum to atmospheric pressure Clockwise rotation closes the valve anti clockwise rotation opens the valve Vent Port 1 System pressure vents via an aperture drilled through the centre of a strap Securing Boss 1 Breather Port 7 Permits air to be drawn into or exhausted from the hand pump depen
72. Issue No 1 3 Familiarisation 3 15 o Flow Electrical Input Deviation Electrical Input gt Zero Electrical Input This is essentially a square root function This function is programmable ON OFF by means of the On F1 and Off F2 function keys respectively A V symbolis displayed when this function is selected Used to display signal deviation On selection a choice of Accept Format or Off is given from the F2 F3 and F4 function keys respectively Accept F2 Permits a straight line to be defined by a full scale and a lower point by direct entry of data from the numeric Key pad The form of entry is pressure units as currently selected in pressure display referenced to a parameter e g voltage level for both full scale and lower limits The Accept switch toggles between full scale and lower limit entry lines Format F3 Used to select the error format of the displayed error Available options are either percentage of full scale FS percentage of reading RDG or in the currently selected electrical units E Units or pressure P Units OFF F4 Turns the deviation function OFF Used to cancel any zero offset on the recorded display level when either mA or Volts is selected K156 Issue No 1 TES 3 16 DPI 605 IS User Manual 3 10 Mode Select Keys Blue Keys There are nine mode select keys the functions of which are as fol
73. ONNECTION TO A HAZARDOUS AREA MUST BE MADE The communications dialogue between the instrument and an external computer system or printer is carried out over an RS 232 interface using the SCPI protocol The instrument is fitted with a Lemo connector and supplied with a Lemo to 9 pin D Type adaptor Figure 2 4 shows details of the connector interconnections and their relationship to the RS 232 protocol The instrument is configured as Data Circuit Terminating Equipment DCE meurt meurt Computer Printer Connector Type Instrument Function Signal RS 232 Direction Terminology Lemo 9 Way 25 Way Conn EN e D Pin No GE DE D A MIE HUE ee JE EDER Equipment Connector Connector Cable Chassis Shell Shell Screen Fig 2 4 RS 232 Connections K156 Issue No 1 2 Functional Description 2 9 Connection Method To connect the RS 232 interface to an external computer system or printer plug the RS 232 adaptor into the Lemo socket Figure 2 5 shows the permitted connection and usage methods L Vv YES Se X NO E A NO SAFE AREA HAZARDOUS AREA Figure 2 5 RS 232 Connection Methods K156 Issue No 1 2 10 DPI 60
74. RRIER UNIT an L SAFE AREA OR IS PSU Figure 5 2 Pressure to Voltage Transducer Calibration external range SOURCE VOLTAGE PS me on 1 SAFE AREA I I I I oc I w T I a a i I oc a I t 5 I I N 1 1 pall EN 1 DEVICE UNDER TEST i i WE I LOUT OR IS PSU Figure 5 3 Pressure to Current Transducer Calibration K156 Issue No 1 D Applications 5 5 r EXTERNAL TRANSDUCER Buck 7 TO SUIT CONTROLLED PRESSURE CONTROLLED PRESSURE UNIT UNDER TEST EXTERNAL e PRESSURE SOURCE Figure 5 4 Pressure to Pressure Transducer Calibration I 1 ORIS PSU I I I BARRIER Se O O lt er 0 D y CONTROLLED PRESSURE 20 BAR MAX Figure 5 5 Voltage to Pressure Transducer Calibration K156 Issue No 1 i ia 5 6 DPI 605 IS User Manual OR IS PSU ZENER BARRIER EXTERNAL PRESSURE be SS ee SOURCE CONTROLLED PRESSURE Figure 5 6 Current to Pressure Transducer current sourcing Q 300 COM om PRESSURE NORMAL OPEN CLOSED re ESS Figure 5 7 Pressure Switch Test K156 Issue No 1 D Applications 5 7 buk OCH SV AG 225 j B I II CG FB
75. S 2 3854 ELECT gt Es Eee Soe ENR USE IN SAFE AREA ONLY PRESSURE OUTPUT TO UNIT UNDER TEST Figure 5 8 Data Logger external trigger d SAFE AREA Ca i N ooo l E POWER SUPPLY CO 850 UNIT ODD pum co ESH r lt comf ea GE gt I ZENER EXTERNAL 2 BARRIER PRESSURE Y EXCITATION Figure 5 9 Pressure to Voltage Transducer Calibration indicator K156 Issue No 1 i ia 5 8 DPI 605 IS User Manual DPI 605 BR EXTERNAL TRANSDUCER 5 re RANGE EXTEND e gt REW OSI 458 S U Vv COOC Q EXTERNAL es PDCR COM OS ess O O TO PROVIDE ALTERNATIVE PRESSURE RANGE N Fi ee DEVICE UNDER TEST V ee ee ZENER POWER SUPPLY BARRIER UNIT ba eS es er es sed SAFE ARE Figure 5 10 Pressure to Voltage Transducer Calibration external range SOURCE VOLTAGE COM ZENER BARRIER EXTERNAL PRESSURE DEVICE UNDER TEST PRESSURE OUTPUT Figure 5 11 Pressure to Current Transducer Calibration K156 Issue No 1 D Applications 5 9 EXTERNAL TRANSDUCER TO SUIT CONTROLLED PRESSURE CO ODO msn 255 Ka 7 Druck CONTROL 28 88 PRESSURE O00 SOURCE n_e O CONTROLLED PRESSURE UNIT UNDER TEST EXTERNAL ei PRESSUR
76. Test Press the F1 Function key to select Defaults option Press the F3 Function key to select clock The following display prompt will be shown e g Set time and date 14 58 20 08 02 94 Time Date e select the Time option F1 and at the prompt enter the relevant time hours e g Enter new Time Hours Mins K156 Issue No 1 4 Operation 4 5 e Enter the new time in hours and minutes format via the numeric keypad using the decimal point as a delimiter o Press ENT to accept the entered value o Select the Date option Enter the new date in Day Month and Year format via the numeric keypad using the decimal point as a delimiter o Press ENT to accept the entered date Display Contrast When the instrument is first supplied the display contrast is factory setto 50 To change the setting proceed as follows semu oe Switch the instrument ON ey Press the SET UP key and select the Defaults e Status option F1 o Cal Test 5 Units Select the Contrast option from the Defaults menu Note e Comms the Contrast option is one level down on the Defaults menu i See and is obtained by pressing the More F4 key on the first m level e Printer Contrast e Auto Off o Use the Up F1 or Down F2 key to change the contrast Mote level Up causes the display to go darker and Down to go Up lighter Down o Press the Exit Menu key three times to exit SET UP
77. Up F1 and Down F2 keys The display will round to the number of significant figures set NOTE The Pressure display resolution is set for a specific combination of Pressure Units and Range If either the Units or Range are subsequently changed the Resolution previously set for those units and range will be recalled The DPI 605 is shipped with its Restore Last Set up set to ON In this state any programmed functions e g Process function will remain selected after the instrument has been switched off and back on again To select the required On State proceed as follows Defaults Battery o Status Units Comms Clock More Printer Contrast Auto Off More On State On Off o Cal Test e Resolution Switch the instrument to ON Press the SET UP key Select Defaults F1 option from the Set up menu Select More F4 twice Select On State F2 This will report on the state of the on state function e g Restore last set up Off On Off Select On F3 or Off F4 as required K156 Issue No 1 4 14 DPI 605 IS User Manual 4 5 Installation 4 5 1 Input Output Connections Connections to the instrument are made to the appropriate connections as shown in Figure 4 9 Pressure connections are made to the Pressure Port located on the top of the instrument and electrical connections to the two side panels 4 5 2 Pressure Connections To connect to the measuring port proceed as
78. _INT SINGLE 0 0 0 NUMERIC_INT SINGLE 0 0 a BOOLEAN SINGLE efault OFF NUMERIC_INT SINGLE 0 OperEnab 0 0 65535 NUMERIC_INT SINGLE 0 QuesEnab 65535 0 0 NUMERIC_INT SINGLE 0 atusEnable 0 0 ore_next_txt STRING SINGLE K156 Issue No 1 B SCPI Communications Protocol store_val NUMERIC_REAL 1 0000 20 00 1 0000 SINGLE 1 0000 STRING store_val_txt SINGLE switch_para STRING SERIES switchtest_stat BOOLEAN SINGLE Default OFF are_value 1 00e 011 NUMERIC_REAL SINGLE 1 00e 011 0 00 0 00 emp_units ENUMERIC C F CEL Default SINGLE NUMERIC_REAL 1 00e 011 0 00 0 00 emperature_value SINGLE 1 00e 011 BOOLEAN ext_state SINGLE Default ON STRING SINGLE NUMERIC_REAL SINGLE 9999 00 5 00 5 00 1 0000 imeout_ stat BOOLEAN SINGLE Default ON _fail_str STRING SINGLE _fullscale 1 00e 011 NUMERIC_REAL SINGLE 1 00e 011 0 00 0 00 STRING SINGLE s STRING SINGLE s ENUMERIC RDG FS EUNit Default PUNit SINGLE B 39 K156 Issue No 1 B 40 DPI 605 IS User Manual upper_electrical 1 00e 011 upper_pressure 1 00e 011 voltage_value 1 00e 011 wait_hrs 0 00 99 00 wait_mins 0 00 wait_secs 0 00 NUMERIC_INT 2999 1 00e 011 1 00e 011 1 00e 011 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 NUMERIC_REAL 0 00 0 00 NUMERIC_REAL 5 00 NUMERIC_REAL 0 00 1992 5 00
79. ad This procedure leaves the linearity and temperature compensation data unchanged Under the Barometric option of the Pressure Calibration Adjustment menu four further options are provided Because the Barometric transducer works on a resonant principle which is completely different to the piezo resistive transducers used for the other pressure ranges of the instrument the calibration adjustment features for the Barometric option are different to those for the other ranges The four options are Constants This function provides access to the calibration constants of the Baro metric transducer The constants are derived at the time of manufacture of the transducer and should NEVER be altered in any way without reference to the manufacturer K156 Issue No 1 G Calibration 6 5 Frequency This function is used to set up the internal reference frequency of the instrument The procedure takes the form of measuring the reference frequency nominally 10MHz to be found on the main printed circuit board connector PL14 pin 2 signal pin 3 ground and entering its value via the key pad Diode The function is used to set up the measurement of the Barometric transducer diode voltage output The procedure takes the form of measuring the actual diode voltage output from the Barometric trans ducer and entering its value via the key pad The voltage is to be found on the main printed circuit board connector PL16 pin 1
80. ad and press ENT Record all measured parameters at this calibration pressure by pressing the AutoCal Log key F1 Using the Hand pump calibrator versions or by external pressure control indicator versions increase the system pressure until the next calibration pressure is obtained Use the Volume Adjuster calibrator only to obtain the exact value required If using the Dial Gauge option enter the dial gauge reading on the numeric key pad and press ENT Record all measured parameters at this calibration pressure by pressing the AutoCal Log key F1 Using the Hand pump calibrator versions or by external pressure control indicator versions increase the system pressure until the next calibration pressure is obtained entering the dial gauge reading if selected at each new pressure Press the AutoCal Log key F1 to store the data Repeat until all the required calibration pressures have been logged At each way point the number of points taken during the calibration run is indicated on the display e g Manual AutoCal 12 8 35 40 28 02 93 AutoCal Log Stop To terminate the logging sequence press the Stop F4 key After completion of the logging sequence two options for analysing the results are available These are Best Straight Line BSL selected by F1 and Terminal Straight Line selected by F2 and Absolute Straight Line selected by F3 For each function the maximum deviation from the straight line is obtained b
81. alue gry SYSTem TIME time_cmd hour NUMERIC_INT SINGLE minute NUMERIC_INT SINGLE second NUMERIC_INT SINGLE SYSTem TIME time_qry SYSTem VERSion SS_system_version_qry SYSTem KEY simulate_key_cmd key_string STRING SERIES TEST SERial serial_test_cmd TSL autocal_tsl_cmd acal_tsl_fs NUMERIC_REAL SINGLE acal_tsl_dev NUMERIC_REAL SINGLE acal rel type ENUMERIC SINGLE tsl pass str STRING SINGLE Il fail str STRING SINGLE T TEMPerature emperature_units_cmd temp_units ENUMERIC SINGLE T TEMPerature emperature_units_qry UNIT PRESsure pressure_unit_cmd presr_unit SUFFIX_DATA SINGLE T PRESsure SFACtor special_factor_cmd ScaleFactor NUMERIC_REAL SINGLE IT PRESsure SFACtor special_factor_qry UNITE PRESsurel pressure_unit_qry K156 Issue No 1 B 32 DPI 605 IS User Manual VARIABLE LISTING BEBE HSE RE DE HE DE HER ED DEEE HE DE DEEE EH SPECTRUM SOLUTIONS SCPI INTERPRETER Copyright 1991 1992 Title PARSER DRUCK2 MAP i a HE DE ED EH EKER RHE R ER TYPE VARIABLE NAME vdeft vreset ac high current 1 00e 01 ac 1 00e 01 ac_low_curre 1 00e 01 acal_bsl_dev 1 00e 01 acal_bsl_fs 1 00e 01 acal_bsl_type EUNit FS Default PUNit _leak_error 1 00e 011 Aj ER acal EU Default PUNit NUMERIC 00e 0 REAL 0 00 1 00e 0 00e 01 1 00e 01 359999 00 1 00e 01 1 00e 01 C_REAL 0
82. and Section 4 5 8 K156 Issue No 1 4 38 DPI 605 IS User Manual o Select TEMP on the Electrical input panel NOTE f TEMP is selected and a probe is not connected or is improperly connected the displayed will read e g Not Connected C 4 12 Data Log The Data Log Record option of the instrument enables it to store a large number of complete screens The function has two basic modes of operation Record and Replay To perform a Data Log operation proceed as follows o Switch the instrument ON e Set up the instrument to display the required pressure and electrical measurands Press the DATA LOG key Selection of this function displays the Data Log Menu as follows e g Data Log Menu Record Replay Directory Delete To obtain a listing of the Data Log File names already used press the Directory key F3 Refer to Section 4 12 1 for use of this utility o Select Record F1 from the Data Log Menu A prompt to continue with the Data Log function or to Quit is now Record Replay given e g Directory e Delete Will log the current display 14 50 46 e Continue Continue Quit e Quit Periodic Press the Continue F1 function key A file number is Event first requested followed by a dialogue prompting for required start and stop parameters Refer to Section 4 12 2 for details for the operation of the Data Log Record Mode For details of the methods of replaying re
83. ar_all_cmd DISPlay WINDow TEXT LOCate Header Suffix 4 1 1 1 display_locate_cmd display_x NUMERIC_REAL SINGLE display_y NUMERIC_REAL SINGLE DISPlay WINDowI TEXT LOCate Header Suffix 4 1 1 1 display_locate_qry DISPlay WINDow TEXT PAGE Header Suffix 4 1 1 1 display_page_cmd display_page_va NUMERIC_REAL SINGLE DISPlayl WINDow TEXT PAGE Header Suffix 4 1 1 1 display_page_qry DISPlay WINDow TEXT STATe Header Suffix 4 1 1 1 text_display_cmd text_state BOOLEAN SINGLE DISPlay WINDow TEXT STATe Header Suffix 4 1 1 1 text_display_qry DISPlay WINDow TEXT DATA Header Suffix 4 1 1 1 display_text_str_cmd text_string STRING SINGLE DISPlay WINDowI TEXTI DATA Header Suffix 4 1 1 1 display_text_str_qry DISPlay WINDow Header Suffix 4 1 window_qry disp_string STRING SINGLE K156 Issue No 1 B SCPI Communications Protocol GT autocal_goto_cmd goto_value goto_limit NUMERIC_REAL SINGLE NUMERIC_REAL SINGLE INFO info_cmd info_string STRING SINGLE INPut FILTer LPAS Header Suffix 2 1 1 INPut FILTer LPASI STATe Header Suffix 2 1 1 1 filter_state_cmd filter_stat BOOLEAN SINGLE INPut FILTer LPAS STATe Header Suffix 2 1 1 1 filter_state_qry INPut FLOWI STATe Header Suffix 2 1 1 flow_cmd flow_state BOOLEAN SINGLE INPut FLOWI STATel Header Suffix 2 1 1 low_qry INPut TARE Header Suffix 2 1 are_value_cmd
84. arameters are configured in the Set up Mode Refer to Section 4 4 2 o Transmit the test file to the DPI 605 IS instrument NOTE The instrument should not be in the Data Log or AutoCal mode when the data transmission is carried out When a file has been successfully transferred the File ID is displayed on the display dialogue line and the file is then available for selection from the AutoCal Tests directory To carry out a specific AutoCal test proceed as follows o Select AUTOCAL o Select Test F1 option from the AutoCal menu o Select Auto F2 Selection of Auto displays a Test Menu on the screen e g AutoCal Tests Free Blocks 9000 AY 36224 SN 135672 AY 36225 SN 166224B AZ 37777 SN 19227A AP 36972 SN 16276B Page Up Page Down K156 Issue No 1 4 Operation 4 63 Select the required test file by means of the Page Up F1 Page Down F2 T F3 and J F4 keys and press ENT oe Follow the instructions given on the display setting up pressures and logging results as requested To replay AutoCal log files refer to Section 4 13 3 4 14 Use of the RS 232 Port THE RS 232 PORT MAY ONLY BE USED IN A N SAFE NON HAZARDOUS AREA REFER TO SECTION 4 5 4 FIGURE 4 4 THE RS 232 PORT IS PROTECTED BY 50 mA HRC FUSES THESE FUSES ARE NOT USER SERVICEABLE The instrument is provided with a RS 232 port for the transfer of data to and from the instrument This port is completely floating with r
85. attery e Select Battery F2 from the Setup menu The battery Status ee lt Calffest status will now be indicated e g Battery 8 94 V Good o Replace the batteries if Battery Status Poor is reported Battery Replacement The battery compartment for the DPI 605 IS calibrator and indicator is located in the base of the instrument as shown in Fig 4 1 CARRIED OUT IN A SAFE NON HAZARDOUS U BATTERY REPLACEMENT SHOULD ONLY BE AREA ONLY THE FOLLOWING TYPES OF BATTERY MAY BE USED USE OF ANY OTHER TYPE WILL INVALIDATE THE INSTRUMENT S SAFETY CERTIFICATE e Duracell Standard or Procell MN 1300 Panasonic LR20 2BP Varta Energy 2000 Series Part No 4020 To change the batteries proceed as follows A SAFE AREA AND THAT THE INSTRUMENT IS i ENSURE THAT THE EQUIPMENT IS LOCATED IN SWITCHED OFF K156 Issue No 1 4 16 DPI 605 IS User Manual Turn the instrument over to expose the battery compartment located in the base refer to Figure 4 1 Remove the battery cover 2 by unscrewing the tamper proof screws 3 by means of the special key provided 1 Carefully remove the exhausted batteries and dispose of them in an approved manner Alkaline cells contain toxic materials NOTE All cells must be replaced at the same time Check that none of the batteries have leaked any electrolyte into the battery compartment Any electrolyte leakage must be cleaned up before new batteries are fitted
86. be programmed via the RS 232 port to carry out tests on a number of devices These programmed tests are used to set up both the electrical and pressure outputs of the instrument for each test In the Manual option the operator must manually set up the electrical outputs and for calibrator versions of the instrument use the hand pump to set the required pressures For indicator versions of the instrument the applied pressure must be controlled externally An AutoCal Log operation is then carried out every time the AutoCal Log key is operated To carry out an AutoCal operation proceed as follows refer to Fig 4 9 o Open the Vent Valve 2 to ensure that the instrument is depressurised o Connect the device or system under test to the instrument o Switch the instrument ON Set up the instrument to display the required measurands Press the ZERO key Close the Vent Valve 2 o Select the AUTOCAL function Selection of this function displays the AutoCal menu as follows e g AutoCal Menu Test Replay Directory Delete To obtain a listing of the AutoCal File names already used press the Directory F3 key The Directory utility is described in Section 3 10 8 and the use of the utility in Section 4 13 1 K156 Issue No 1 4 Operation 4 53 o Select Test F1 from the AutoCal menu This action provides a prompt requesting the type of AutoCal operation to be carried out e g Select type of AutoCal Manual Auto
87. ble found in the Function Listing and provides further details for each one The details provided include the maximum minimum default and reset values together with the defined values for enumerated types K156 Issue No 1 B SCPI Communications Protocol FUNCTION LISTING PENSE SEE SEE ERR DEEE DE HAE DE DE DE DD HE 2 2 22 SPECTRUM SOLUTIONS SCPI INTERPRETER Copyright 1991 1992 Te PARSER DRUCK2 MAP ig ERDE FUNCTION NAME TYPE SS_cls_cmd ESE SS_ese_cmd StatusEnable NUMERIC_INT SINGLE ESE SS_ese_qry ESR SS_esr_qry IDN SS_idn_qry OPC SS_opc_cmd OPC SS_opc_aqry RST SS_rst_cmd SRE SS_sre_cmd ServiceReg NUMERIC_INT SINGLE SRE SS_sre_qry STB SS_stb_qry TST SS_tst_qry WA SS_wai_cmd B 19 K156 Issue No 1 B 20 DPI 605 IS User Manual ACC autocal_acc_cmd acc_str SINGLE BSL autocal_bsl_cmd acal_bsl_fs NUMERIC_REAL SINGLE acal bel deu NUMERIC_REAL SINGLE acal bsl type ENUMERIC SINGLE bel pass str STRING SINGLE bel fail str STRING SINGLE CALCulate DATA Header Suffix 2 calc_data_qry calc_data_value NUMERIC_REAL SINGLE CALCulate FORMa Header Suffix 2 calc_format_cmd calc_form ENUMERIC SINGLE CALCulate FORMat Header Suffix 2 1 calc_format_qry CALCulate KMATh DEViation Header Suffix 2 1 1 deviation_cmd lower_pressure NUMERIC_REAL SINGLE lower_electrical NUMERIC_REAL SINGLE upper_pressure NUM
88. cal voltages and currents The indicator version of the instrument is similar but has no pressure generation facilities Safety REFER TO SECTION 4 1 FOR GENERAL OPERATION AND CONNECTION DETAILS DO NOT EXCEED THE SAFE WORKING PRESSURE DO NOT USE PRESSURE MEDIA OTHER THAN THAT SPECIFIED FOR THE INSTRUMENT Form of Test Generally devices to be calibrated require one of the following e An electrical input to generate a pressure output A pressure input to generate an electrical output e An electrical input to produce a pressure display e A pressure input to produce a pressure output For a specific type of test the connection to the device will depend upon the device under test K156 Issue No 1 i Io 5 2 DPI 605 IS User Manual For all types of device the calibration set up between the DPI 605 IS and the device is as follows o Ensure that the vent valve on the instrument is open Make the pressure connection between the instrument and the device under test Make the electrical connections between the instrument and the device under test Use only the recommended Amm plug connections to connectto the instrument Use Zener barriers where applicable refer to Fig 5 1 to Fig 5 16 Switch the instrument to ON by means of the ON OFF key Set up Alarm and Safety Limits required for the protection of the device under test Program either Programmable Output Prog output or the Analogue Output Ana output of th
89. corded Data Log data refer to Section 4 12 3 K156 Issue No 1 4 Operation 4 39 4 12 1 Use of Data Log Directory and Delete Utilities Directory ON DNH AUTO LEAK TEST IL ON A TEST DATA STORE RE LOG CALL DATA LOG Record Replay Directory Delete Delete DATA LOG Record Replay Directory Delete Yes No Selection of the Directory F3 option from the Data Log menu provides a list of all the completed Data Log operations that have been stored in the instruments memory These will be listed in the order in which the Data Log operations were carried out not in file number order A typical directory listing is shown below File ID Data Log Free Blocks 10846 A17966 A17222 28 01 93 28 01 93 C22713 28 01 93 C070842 28 01 93 B2 28 01 93 15 37 10 15 40 03 15 51 32 15 51 32 15 58 17 Page Up Page Down The e g Free Blocks 10846 legend gives an indication of the remaining memory space and the first page of the directory five entries is displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward to the next page or back to a previous page of a directory listing The Exit Menu key is used to return to the main Data Log menu When first entering the Data Log func tions It is good practice to interrogate the directory This will enable the operator to determine what File reference
90. currently selected printer is indicated by the position of the arrow Use the Next F2 and Previous F1 keys to move the printer to the required printer Press the Exit Menu key to return to the Default Settings menu Print Screen To print the screen proceed as follows e Ensure that the external printer or computer is connected to the RS 232 port and that the port is correctly configured See Section 4 4 2 Press DEL and ENT keys on the numeric keypad simultaneously The display will then be printed uploaded In the event of any problems being encountered the Print operation can be aborted by operation of the Exit Menu key 4 4 4 Pressure Display Resolution The display resolution can depending upon the range selected be set up to give a maximum of 6 digits To select the required resolution proceed as follows Defaults o Battery Status o Cal Test Units Comms e Clock a More Printer Contrast Auto Off a More Resolution e On State On Off Switch the instrument ON Press the SET UP key Select Defaults F1 from the Set up menu Select More F4 to gain access to second level of defaults Select More F4 to gain access to third level of defaults Select Resolution F1 option In response to the prompt e g Pressure display resolution dp s 5 K156 Issue No 1 4 Operation 4 13 4 45 Change On State Enter the required number of digits by using the
91. d features would remain as set except the programmable outputs would become disabled even if they were enabled at switch off Temp Probe This feature is used to set the instrument to accept its temperature input from either a PT 100 or PT25 Platinum resistance probe The PT100 probe covers the temperature range 55 C to 220 C and the PT25 probe 55 C to 850 C K156 Issue No 1 3 Familiarisation 3 21 Battery The battery function provides a status report on the battery When the function is selected the battery voltage is indicated together with a status statement e g Battery 7 37 V Good Three status statements are provided Good Okay and Poor When the Poor status is indicated the batteries should be replaced Status The Status facility provides details of the instrument s internal and external pressure calibration dates together with electrical calibration details Selection of the function causes the Ratio Calibration Dates to be displayed as follows e g Ratio Calibration Dates Transducer Supply 27 01 93 Span Cal Sig 27 01 93 Previous Next Operation of the Mext F2 Key causes successive sets of calibration data to be displayed in turn The data displayed is as follows Ratio Calibration Dates Electrical Calibration Dates Barometer Calibration Dates Internal Range 1 Calibration Internal Range 2 Calibration External Range 1 Calibration External Ranges 2 to 10 To exit
92. d is executed in order until no more commands remain Many commands detailed below put text on the display of the instrument The most common location for this information is the next to bottom line of the display called the display message line referred to as the DML MESS argument This command has 1 mandatory argument o The argument is a string of up to 40 ASCII characters Execution of the command results in the string being displayed on the DML Continue is also displayed over the F1 key and the execution of the Test Program is halted until F1 is pressed When F1 is pressed the string and Continue both disappear and execution of the Test Program continues The displayed message does not appear on any print out upload or SCPI upload K156 Issue No 1 WW A 10 DPI 605 IS User Manual PT arg1 arg2 This command has 2 mandatory arguments o The first argument is a pressure value in the units as selected in the Setup Block oe The second argument is a tolerance on the pressure value in the same units Execution of the command results in Go To being displayed at the beginning of the DML followed by the pressure value and its units Log Point is displayed over the F1 function key Test program execution is halted until the F1 function key is pressed When F1 is pressed if the actual pressure is equal the specified pressure value within the specified tolerance the displayed values are recorde
93. d and execution of the test program continues If when F1 is pressed the actual pressure is not within the specified tolerance then the user is offered the choice of Accept F1 key and Retry F2 key The logged data is presented in printout of results upload of results and SCPI upload K156 Issue No 1 A AutoCal A 11 GT arg1 arg2 This command has 2 mandatory arguments o The first argument is a pressure value in the units as selected in the Setup Block o The second argument is a tolerance on the pressure value in the same units Execution of the command results in Go To being displayed at the beginning of the DML followed by the pressure value and its units Accept is displayed over the F1 function key Test program execution is halted until the F1 function key is pressed When F1 is pressed if the actual pressure is equal the specified pressure value within the specified tolerance then execution of the Test Program continues If when F1 is pressed the actual pressure is not within the specified tolerance then the user is offered the choices Accept F1 key and Retry F2 key It should be noted that no results are recorded by the GT command LEAK arg1 arg2 arg3 This command has 3 mandatory arguments o The first is the wait time for the leak test in seconds e The second is the test time for the leak test in seconds o The third is the maximum leak rate permissible in pressure units per mi
94. d on subsequent operation of the Yes F1 key or the Delete operation aborted by operation of the No F2 key If a file is password protected following operation of the Yes F1 key a prompt is given for the corresponding password as follows Enter File Protection Number Enter the password a number within the range 1 to 9999 followed by ENT The file is then deleted It should be noted that if a Tests file is password protected then the corresponding Results file will also be protected by the same password K156 Issue No 1 TES 3 40 DPI 605 IS User Manual K156 Issue No 1 4 Operation 4 1 4 1 4 1 1 4 1 2 4 2 OPERATION Safety This instrument is designed to be intrinsically safe and should be operated in accordance with the conditions of use outlined in the Certification and Schedule supplied Refer to Intrinsic Safety Conditions of Use Introduction Section Pressure Safety Instructions BEFORE CONNECTION DISCONNECTION OF PRESSURE COUPLINGS THE PRESSURE CAN BE VENTED BY MEANS OF THE VENT VALVE ALWAYS CHECK FOR TRAPPED PRESSURE ENSURE THAT CORRECTLY RATED PIPE FITTINGS ARE USED Electrical Safety Instruction lt is important that the correct type of battery is fitted into the instrument The only types of cell that can be used are indicated on the battery compartment housing located on the underside of the instrument U BATTERIES MUST ONLY BE CHANGED IN A SAFE AREA General
95. ded to the indicated pressure reading To enter the Tare function proceed as follows process o Select Process by pressing the PROCESS key Tare located in the Pressure keypad Peak FS More o Press the Tare F1 key A menu showing the status Reading of the Tare process is now displayed e g Manual GE Pressure Tare Off Value 1 45000 bar Reading Manual On Off K156 Issue No 1 4 Operation 4 29 o Either press the Reading F1 key to set the currently indicated value as the Tare value or press Manual F2 f Manual is selected enter the required Tare value on the numeric keypad and press ENT Note that any Tare value entered will be subtracted from the indicated pressure reading If a Tare value requires adding to the indicated pressure reading a negative number should be entered Enable the Tare function by pressing the On F3 key Conversely the Tare function is disabled by pressing the Off F4 key A T symbol is displayed beside the pressure display to indicate when the function is enabled Peak The Peak function is used to reconfigure the instrument s pressure window to read the positive and negative peaks of the pressure reading To select the Peak Sk HE HEHE o Tare function proceed as follows process e Select Process by pressing the PROCESS key located in the Pressure keypad Peak RE Press the Peak F2 key A menu showing the status of the ag
96. ding upon whether the instrument is set to the pressure or vacuum mode Reference Port 10 The reference port for the internal sensors is located on the front face of the instrument case below the pneumatics assembly It contains a non replaceable filter element If the instrument is fitted with the Barometric Reference option it is pneumatically connected to this port K156 Issue No 1 TES 3 4 DPI 605 IS User Manual 5 6 1 1 Vent Port 2 Vent Valve 5 Pressure Port 6a RS 232 6 System Connector Panel 6b Temperature Probe 6c Ext Transducer 8 SJ dr ech Breather Port Test Connector Panel Keyboard Display Reference Port O A 7 Figure 3 1a DPI 605 IS Indicator Controls and Connectors K156 Issue No 1 3 Familiarisation 3 5 Pneumatics Indicator Fig 3 1a The DPI 605 IS indicator pneumatics comprise the following items Pressure Port 5 Pressure connection to the device under test Vent Valve 2 Used to restore the output pressure vacuum to atmospheric pressure Clockwise rotation closes the valve anti clockwise rotation opens the valve Vent Port 1 System pressure vents via an aperture drilled through the centre of a strap Securing Boss 1 Reference Port 10 The reference port for the internal sensors is located on the front face of the instrument case below the pneumatics assembly It contains a non replaceable filter element
97. ding a printer is connected to the RS 232 port Connection to a Computer The instrument may be connected to a computer via its RS 232 port for the purpose of transferring files of test results from Data Log or AutoCal functions to the computer A lead is supplied with the instrument which functions as an adaptor between the 3 pin Lemo connector on the instrument and the industry standard 9 pin D type connector commonly found in modern computers Prior to connecting the instrument to a computer the parameters of the RS 232 port should be set to match those of the computer e g baud rate parity handshaking Once the connection has been established two possible techniques for gathering files from the instrument are available Upload If the communication channel into the computer can be held open i e computer waiting to receive data then use of the Upload feature to be found in the Data Log and AutoCal modes will cause a file of data to be sent from the instrument The file is sent as ASCII text and as such is readily readable and importable into common spread sheets such as Microsoft Excel Full details of the use of Upload can be found in the Section of this manual detailing the Data Log and AutoCal modes of the instrument K156 Issue No 1 4 Operation 4 65 4 15 Dialogue The communications dialogue between the DPI 605 IS instrument and an external system is carried out over the RS 232 interface using
98. displayed pressure or a manually entered pressure value This function can be enabled or disabled by the On F3 or Off F4 function keys AT symbol is displayed when the Tare function is enabled Enables display of maximum and minimum pressure levels obtained during operation The function is enabled or disabled by the F3 and F4 keys respectively The currently indicated levels are reset by the F1 key The Tare function if enabled is active for all functions on the display the Tare value therefore being subtracted from both the minimum and maximum readings as well as the pressure reading This function is operative for reading in either pressure units or F S Converts the indicated pressure reading to a percentage of full scale FS reading over a user defined zero to full scale range Provides a low pass filter function to stabilise the display if the instrument is connected to a noisy fluctuating pressure line This function can be enabled or disabled by the F1 and F2 function keys A low pass filter symbol amp is displayed when this function is enabled K156 Issue No 1 TES 3 12 3 8 3 9 DPI 605 IS User Manual Pressure Key Functions Contd o Flow Pressure Pres Vac Pressure Zero Pressure Converts the indicated pressure reading to a flow rate Essentially a square root function This function can be enabled or disabled by means of the F1 and F2 fu
99. e or even all may be omitted Recognised field identifiers are listed below N meaning notes may be up to 40 alpha numeric characters T meaning device type G Gauge g or gauge meaning gauge A Abs a or abs meaning absolute D Diff d or diff meaning differential FS meaning full scale pressure up to 17 alpha numeric characters NO meaning nominal output up to 15 alpha numeric characters MP meaning maximum pressure up to 14 alpha numeric characters FD meaning file creation date up to 15 alpha numeric characters FT meaning file creation time up to 14 alpha numeric characters Setup Block The data in this block is used to set up the instrument in the way required The data takes the form of a series of individual SCPI commands for the instrument thereby facilitating the selection of pressure units and electrical range etc This block is therefore of variable length and content but will include commands to select the following Pressure units Pressure processing RHS Measurand V mA C Electrical processing Electrical outputs Limits K156 Issue No 1 WW A 6 DPI 605 IS User Manual Test Block The data in this block is used to specify the actual details of the test to be performed on a step by step basis The data takes the form of a series of individual SCPI commands to for example put messages on the display and log readings This block is therefore of variable length and content An examp
100. e ID AlphaT Alpha J gt This File number can be either alphabetical numerical or a combination of both Alpha characters are entered by means of the Alpha F1 Alpha Jl F2 e F3 and F4 keys Alpha F1 scrolls forwards through the alphabet and Alpha F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the F4 and e F3 keys respectively K156 Issue No 1 4 Operation 4 41 Numeric entries are added directly from the numeric keypad The full alphanumeric text is added to the file by pressing the ENT key located on the numeric keypad e Following entry of the file number the instrument prompts for the selection of a trigger mode as follows e g Select trigger for Data Logging Periodic Record Replay Directory o Delete Continue e Quit Periodic Event a Stop Time Samples Event Periodic Mode The Periodic trigger mode F1 is basically an internally generated trigger mode which permits the Data Logger to be controlled either by programmable times or by the number of samples taken The frequency of sampling in seconds is first of all defined followed by a required Stop condition The Stop condition can be either a programmable future time or after a programmable number of samples If Samples F2 are selected as the Stop condition then the Data Logger can also be programmed to
101. e created on the instrument for a given Test Programhas a gt 1 symbol appended to the Serial Number This serves as an as found marker Results Files marked in this way are never overwritten by Results Files produced by subsequent executions of the same Test Program If the same Test Program is executed a second time the Results File created is identified by the same File ID and the same Serial Number but the Serial Number has a gt 2 symbol appended This serves as the as left marker Results Files marked in this way are always overwritten by Results Files produced by subsequent executions of the same Test Program The Results File and Test Program can then be uploaded to the computer for storage or analysis One field in each Test Program controls deletion by instrument key press of the Test Program itself and any associated Results Files If a PIN number is specified in this field the PIN number is required to facilitate deletion If no PIN number is specified then deletion may be made freely lt is possible to delete any Test Program and any Results File in the instrument from the computer using the PIN number if specified K156 Issue No 1 WW A 4 DPI 605 IS User Manual 4 TEST PROGRAM Test programs contain information on the device to be tested the required setup of the instrument for performing the test and the details of the test pressures to be used The Test Program may also contain pass fail cri
102. e following e Vent Valve 2 Volume Adjuster 4 Calibrator only e Hand pump 3 Calibrator only Pressure Test Port 5 The associated pressure control panel is shown below A description of the controls is given in Section 3 NOTE It is not possible to generate a pressure with the indicator version of the instrument Sections 4 6 1 and 4 6 2 still apply however to the Indicator version of the instrument o Switch the instrument to ON by means of the ON OFF key The instrument will default to its internal pressure transducers and to the pressure mode e Press the UNITS key Select the required pressure units from the four units displayed by pressing the associated function key F1 F2 F3 or F4 If the required units are not displayed refer to SET UP section 4 4 1 o If required press the LIMITS key and use the function keys to define the Alarm F1 and Safety Limits F2 for the test to be conducted e Ensure that the Vent Valve 2 is open and connect the device or system under test to the Pressure Port 5 Note the Pressure Port 5 has a rotatable coupling with spanner flats provided Slacken off the locking ring to allow the coupling to rotate ENSURE LOCKING RING IS TIGHTENED BEFORE APPLYING PRESSURE K156 Issue No 1 4 Operation 4 25 o Set the Volume Adjuster 4 to approximately half way Zero the pressure display by means of the ZERO key o Set the instrument to pressure by mea
103. e instrument to give the required output and enable the output refer to Section 5 If required connect the DMM inputs to the device under test Carry out the test Table 5 1 details some of the types of test that can be carried out with the DPI 605 The figure number quoted in the table refers to a drawing which shows the corresponding connections to the instrument K156 Issue No 1 D Applications 5 3 Connection Diagram Device Under Test DUT Pressure to Voltage i 5 Pressure to Voltage External Transducer i 5 10 Pressure to Current i 5 11 Pressure to Pressure 5 12 Voltage to Pressure i 5 13 Current to Pressure current sourcing 5 14 Pressure Switch Test 3 5 15 Data Log Trigger Input USE IN SAFE AREA ONLY Table 5 1 Typical Calibration Configurations OR INTRINSICALLY SAFE IS PSU 1 SAFE AREA 0 ODO E I CC CG 885 PONENT v COOC 0 DMM jes SOC oS i E I ZENER O BARRIER l ath dp Ko MSs ae ee PRESSURE OUTPUT Y EXCITATION N Figure 5 1 Pressure to Voltage Transducer Calibration K156 Issue No 1 ae 5 4 DPI 605 IS User Manual DPI 605 m EXTERNAL TRANSDUCER n RANGE EXTEND v EXTERNAL P 2 PRESSURE TO PROVIDE ALTERNATIVE PRESSURE RANGE DEVICE UNDER TEST v RSS Do Rennes ZENER POWER SUPPLY BA
104. e it easy to import the file into most common spread sheet packages e g Excel Quattro Pro etc SCPI upload The required Results File can be requested by a computer connected to the RS 232 port using the SCPI protocol detailed elsewhere In this case the file is formatted in line with the SCPI Data Interchange protocol TRANSFERRING FILES TO AND FROM THE INSTRUMENT Both Test Programs and Results Files can be uploaded from and downloaded to the instrument by computer via the RS 232 port The SCPI Standard 1992 protocol is implemented for communication over the RS 232 port Therefore SCPI commands are used to control the transferring of either type of file and also for housekeeping tasks such as deleting files in the instrument The full SCPI command set for the instrument is detailed elsewhere but for convenience the relevant commands are explained here also Downloading Test Programs MEMORY SAVE lt CR gt lt LF gt file block The file block is the Test Program starting with the ADIF identifier Uploading Results Files and Test Programs MEMORY LOAD file name Uploads a file from the DPI 605 to a host computer The file name has to be identical to the name stored in the instrument including spaces File are sent in the SCPI data block file format e g To upload a Test Program MEMORY LOAD TESTING AT DRUCK SN 12345 K156 Issue No 1 WW A 8 DPI 605 IS User Manual To upload a corresponding Resul
105. e monitored These electrical inputs are passed via a DMM interface to the micro controller which processes the incoming signals to provide a digital display of the measured values Both the pressure and electrical signals can be processed by the instrument in a number of ways to provide the operational features of the instrument These features which are fully described in Section 3 are software controlled by a series of functionally related operations which are written to the display The interface between the operator and the instrument is via the keyboard Two output terminals labelled A and B can be programmed by the micro controller to accept Switch Test inputs normally open or normally closed contact set An RS 232 interface provides a communication channel between the instrument and an optional printer ora computer system In order to avoid earth loop problems isolation is used to make this interface fully floating with respect to the rest of the instrument NOTE The RS232 interface may only be connected in a SAFE AREA An internal power unit provides all the regulated supplies that are needed to power the instrument The instrument is powered by six alkaline D cells Only the approved type of battery should be used Permitted types are e Duracell Standard and Procell MN1300 e Panasonic LR20 2BP Varta No 4020 K156 Issue No 1 2 2 DPI 605 IS User Manual The DPI 605 IS indicator operates in a similar
106. e required data press Exit Menu NOTE If the Dial Gauge display option was selected for the test under review E Points gives a graphic output of Dial I P v Points and PvE Pressure I P v Dial Gauge reading Print GER Selection of the Print option F3 causes all data Test associated with the selected replay file to be downloaded on to a printer To make use of this option a printer must Delete be connected to the RS 232 interface The instrument bey software supports two types of printer a 40 column e Graph portable printer and an 80 column printer The printer g Wa types are set up under the Set up option for Defaults see Section 3 10 2 The instrument auto matically formats the output file for the type of printer in use A typical printout is shown below K156 Issue No 1 4 Operation 4 61 Upload Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 0 53 Last Cal Date 17 04 92 Pressure Range 20 bar g Device Under Test File Identity 2 Date 14 07 92 Time 9 55 52 Serial Number 1234 DUT Full Scale 20 00000 File Type Auto Cal File Test Results PRESSURE ELECT TIME bar Milliamps 0 61675 0 007 9 5 0 59540 0 007 9 55 56 0 54291 0 007 9 5 0 51893 0 007 9 5 Printed 9 57 42 14 07 92 Authorised Selection of Upload option F4 causes all data associated with the selected AutoCal file to be uploaded to a
107. epresent percentage of full scale INFO argument This command has 1 mandatory argument e The argument is a string of up to 40 characters Execution of the command results in the string being placed in the Results File and it therefore also appears on a print of the results file it is also presented in an upload of the results and SCPI upload of results The string is never displayed on the instrument NOTE argument This command has 1 mandatory string argument Execution of the command results in the string being displayed at the beginning of the DML The remainder of the DML is reserved for the operator to enter alpha numeric characters Both the argument for the command and the characters entered by the operator are presented on the results printout results upload and SCPI upload The INFO command is used by the instrument itself to put BSL and TSL analysis data into Result Files K156 Issue No 1 WW A 16 DPI 605 IS User Manual 8 EXAMPLES Two examples of Test Programs together with corresponding Results Files extracted from an instrument in each of the three possible ways are shown below Example 1 The following example conveys the details below File ID ABCDEFGHIJKLMNOPOR Serial Number 12345678901234567 Pin Protection number 9999 In the Header Block the following details are shown Type gauge Full Scale 10 psi Nominal Output 100 mV Max pressure 15 bar File time 15 3 93 File Time 09
108. equired pressure units If the required units are not displayed refer to Section 4 5 1 If required press the LIMITS key and use the F1 and F2 keys to define an Alarm Limit for the test to be conducted see Section 4 6 1 Ensure that the Vent Valve 2 is open and connect the unit or system under test to the Pressure Port 5 Before applying the external pressure vacuum level zero the pressure display by means of the ZERO key Close the Vent Valve 2 Apply the external pressure Use the PROCESS function to define any pressure processing which may be required see Section 4 6 2 K156 Issue No 1 4 Operation 4 33 4 8 1 Connection of External Pressure Transducers To connect an external transducer to the instrument proceed as follows RANGE 5 Plug the transducer into the socket labelled 20 bar G EXT transducer 21 bar A B Eau o Press the RANGE key e Previous o Select External F4 e Next gone A Using the Previous F1 and Next F2 keys select the required transducer serial number from the table ce Check that the serial number of the external transducer matches the serial number selected in the table o Select the external transducer by pressing the Select F4 key It should be noted that calibration routines for external transducers which includes the specification of serial numbers are given in Section 6 If digitally compensated external transducers are used selection of the
109. ernal 2 used by the instrument to measure pressures from 1 to 2 bar Barometer if the option is fitted and External K156 Issue No 1 il 6 4 DPI 605 IS User Manual For Internal 1 Internal 2 and External three types of adjustment are possible o o Linearity Used to provide linearity correction of the pressure reading A minimum of 5 points must be entered over the appropriate pressure range e g 1 to 2 bar for Internal 2 The procedure takes the form of applying precisely known pressures and entering the pressures via the key pad In the case of Internal 1 or Internal 2 Positive pressures are applied to the instru ments pressure port and negative pressures for Internal 2 are simulated by application of a positive pressure to the Reference port Temperature Compensation TC Used to provide temperature compensation of the pressure reading The temperature compensation procedure takes the form of applying zero and nominal full scale pressure to the transducer to be compensated and entering the precise value of the nominal full scale pressure applied via the key pad This procedure is repeated at a minimum of four different temperatures over the temperature range of interest 2 Point This is a simple span and zero calibration adjustment Zero pressure and nominal full scale pressure are applied to the transducer to be adjusted the exact value of full scale pressure applied being typed in via the key p
110. espect to the instrument s electronics therefore no earth loops should be encountered In the event of any data communications problems being encountered press the Exit Menu key to abort the current option Connection to a Printer THE PRINTER MAY ONLY BE USED IN A N SAFE AREA The optional printer for the DPI 605 IS is a 40 column battery portable device It is typically used for obtaining hard copy of test results or data logged files The printer is supplied complete with a lead to connect it to the instrument s RS 232 port K156 Issue No 1 4 64 DPI 605 IS User Manual If the instrument s RS 232 port is to be used for connection to the optional printer then the following RS 232 parameters must be set All are to be found under the SET UP Comms function full details of the use of SET UP is described in Section 4 4 2 Baud Rate 9600 Parity None Handshaking Software SCPI ON Also under SET UP Defaults Printerthe DRUCK 40 COL Printer must be selected Astandard 80 column printer may be used 80 column should be selected under SET UP Defaults Printer and the parameters of the RS 232 port must be configured to suit the particular printer in use Whatever printer is used printing is initiated by key press from within the operating modes of the instrument which facilitate the printing out of files of results e g Data Log and AutoCal The Print Screen facility will also print the current display provi
111. ess of time the commands which are at present specific to the DPI 605 may be officially adopted by the SCPI Consortium and it seems likely that the SCPI Standard itself will be adopted by the Institute of Electrical and Electronic Engineers to form an extension to the IEEE 488 standard All features facilities and functions of the instrument are available via the SCPI protocol The actual command words are in many cases not instantly identifiable with the instrument facilities to which they relate Essentially this is because SCPI protocol was devised for a very generalised instrument and not specifically for the DPI 605 K156 Issue No 1 B SCPI Communications Protocol B 3 Most functions of the instrument have explicit SCPI commands which relate to them however not every aspect of the instrument is covered in this way The most notable exception is that the calibration of the instrument itself has no explicit SCPI commands This does not mean that the process of calibrating the instrument cannot be controlled over the RS 232 port instead of conventionally by the keyboard The pressing of any key on the instrument s keyboard can be simulated via the RS 232 port using the SCPI key press simulation command and in this way access to all the features not having explicit SCPI commands can be gained The user may realise that in principle virtually all of the SCPI commands with the notable exception of those which return readings could be
112. est Replay Directory Delete e Yes No AutoCal Tests Free Blocks 9212 TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Up AutoC Page Up Page Down N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 il I Typical Tests Directory al Results S150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Down Free Blocks 9212 N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 T I Typical Results Directory K156 Issue No 1 4 Operation 4 55 Use the Page Up and Page Down keys to select the appropriate directory page and the Tand J keys to select the file on the relevant page To delete a selected file position the cursor against the file name and press the ENT key on the numeric keypad Providing the file is not password protected a pre delete Warning is displayed as follows Delete Are you Sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation aborted by operation of the Mo F4 key If a file is password protected following operation of the Yes F3 key a prompt is given for the corresponding password as follows Enter File Protection Number Enter the password a number within the range
113. external switch contacts connected between sockets A and B open Logging sequence is terminated by pressing the Stop F4 key Example 2 After Continue F1 has been pressed will perform a single shot logging operation when the measured electrical signal rises through 12 mA A File Closed message is displayed to indicate that the logging operation has terminated Example 3 After Continue F1 has been pressed will log every time a negative going edge applied between terminals A ve and D ve occurs The logging sequence is terminated by pressing the Stop F4 key K156 Issue No 1 4 48 DPI 605 IS User Manual Data Log Parameters Logging Trigger Start at 16 00 Stop Single Shot File ID CER14 Continue Data Log Parameters Logging Trigger Start N A Threshold 10 2500 bar Stop Single Shot File ID CER15 Continue Figure 4 14 Event Mode Summary Screens Example 4 After Continue F1 has been pressed will perform a single shot logging operation at the programmed time 16 00 A File Closed message is then displayed to indicate that the logging operation has terminated Example 5 After Continue F1 has been pressed will perform a single shot logging operation when the recorded pressure drops below 10 25 bar A File Closed message is then displayed to indicate that the logging operation has terminated K156 Issue No 1 4 Operation 4 49
114. f one of these functions the Data Logging operation will commence either immediately Mow at a later time Later or following one of a number of external event options Condition These options are Switch Logic and Threshold Section 4 12 fully describes these features When all the Data Log parameters have been defined a summary screen is written to the display as follows e g Data Log Parameters Logging Trigger Threshold gt Periodic time 15 0000 bar 00 00 05 20 Samples File ID B1601 Continue This summary screen which is presented as soon as all the Data Log parameters have been defined remains displayed until the Continue F1 key is pressed Following this the Data Log function is enabled K156 Issue No 1 3 Familiarisation 3 25 Samples If number of samples is selected as the Data Log Stop condition the instrument prompts for the entry Ve of a number of Samples e g Enter number of Samples Following entry of the required number of samples on the numeric key pad the instrument prompts for a Data Log Start condition to be defined e g Time Data Log Start Now Later Condition By selection of one of these functions Stop Time or Samples the Data Logging operation will commence either immediately Now at a later time Later or following one of a number of external event options Condition These options are Switch Logic and Threshold Section 4 12 fully describes these featu
115. ge calibrator over 10 to 40 C The average temperature coefficient 0 002 of reading per C K156 Issue No 1 1 4 DPI 605 IS User Manual Electrical Specification Electrical Inputs Voltage Measurement 0 to 50 V d c auto ranging max resolution 10 UV Input impedance 10 Ma Accuracy 0 04 of reading 1 digit including 90 day stability T C lt 0 0075 of reading per C Current Measurement 0 to 55 mA d c resolution 0 001 mA Internal resistance nominally 10 Q Accuracy 0 03 of reading 1 digit including 90 day stability T C lt 0 0075 of reading Digital Interface RS 232 serial interface for stored data output to host computer or printer and down loaded test routines electrically isolated from the instrument THE RS232 DIGITAL INTERFACE MUST ONLY BE CONNECTED IN A SAFE AREA Power Supply Calibrator and Indicator versions are supplied with six alkaline D Cells The approved cell types are as follows e Procell MN1300 Standard e Panasonic LR20 2BP e Varta Energy 2000 series Cat No 4020 Battery life Nominally 40 hours NOTE No other type of cell may be used K156 Issue No 1 1 1 4 Introduction Environmental Specification Temperature Operating 10 to 40 C Storage 20 to 60 C Sealing Instrument IP65 Electro Magnetic Compatibility Designed to meet EN50081 1 and EN50082 1 Electrical Safety to IEC 1010 Physical Specification Dimensions 140
116. he completion of a test For full details of how to conduct a leak test refer to Section 4 7 Store This function permits the current display pressure and electrical windows to be stored in one of twenty memory locations Operation of the STORE Key initially provides the facility to add alpha numeric characters to the stored display Alpha characters are entered by means of the Alpha T F1 Alpha L F2 F3 and F4 keys Alpha T F1 scrolls forwards through the alphabet and Alpha J F2 backwards Shifting right to the next character position or left to a previous character position is achieved by the FA and F3 keys respectively K156 Issue No 1 TES 3 32 ON SWTOH AUTO LEAK TEST _CAL_ TEST DATA GH 3 10 7 Recall ON SATA AUTO LEAK TEST CAL J TEST DATA i DAL one RE 3 10 8 AutoCal AUTO V LEAK TEST JL CAL LIEST DATA RAR rome DPI 605 IS User Manual Numeric entries are added directly from the numeric key pad The full alpha numeric text is then appended to the stored file by pressing of the ENT key located on the numeric key pad When all locations have been filled subsequent operations of the STORE key cause previously stored data in the current location to be over written Recalls previously stored data to the display Repeated operation steps back one location for each key press and recycles when all twenty locations have been examined This function is u
117. he facility to offset the displayed parameter either by the currently displayed value Reading or a manually entered value Manual The function is enabled or disabled by the On F3 and Off F4 function keys respec tively AT symbol is displayed when the Tare function is enabled Enables display to show maximum and minimum parameter levels obtained during operation When selected the function is enabled or disabled by means of the On F3 and Off F4 function keys respectively The currently displayed maximum and minimum levels are reset by the F1 key The Tare function if enabled is active for all functions on the display the Tare value therefore being subtracted from both the minimum and maximum readings as well as the electrical reading Converts the indicated parameter reading to a percentage of full scale F S reading over a user defined zero to full scale range The zero and full scale points can be set either by direct numerical entry via the numeric key pad or by means of function key F1 accepted as the currently displayed reading The function is enabled or disabled by the On F1 and Off F2 function keys respectively Provides a low pass filter to stabilise the display reading if the instrument is connected to a noisy fluctuating input signal line This can be enabled or disabled by means of the On F1 and Off F2 function keys A low pass filter symbol is displayed when this function is enabled K156
118. inearity Cal Section 6 3 2 must be carried out before a temperature compensation run is commenced Connect the external pressure transducer to an external pressure source and place transducer in a temperature controlled environment Select TC from the External Pressure Transducer Cal menu Allow transducer environmental temperature to stabilise at e g 10 C In response to the prompt e g Temperature 1 Enter the current temperature e g 10 C and press ENT Press Accept to enter the indicated values into memory In response to the Enter Zero Pressure 1 prompt enter the value of the applied Zero pressure and press the Accept F1 key Apply the full scale pressure to the transducer and in response to the Enter F S Pressure prompt enter the value of the applied full scale pressure and press the Accept F1 key K156 Issue No 1 6 6 10 o DPI 605 IS User Manual Repeat the application of zero pressure and full scale pressure for each of the operating temperatures throughout the range of the transducer e g 5 C 23 C and 40 C A minimum of four operating temperatures must be selected On completion of calibration press Cal Done f less than four temperature points are entered an error message will be displayed e g At least 4 points needed 6 3 4 External Transducer Parameter Entry If the parameters of an external transducer are not entered in the External Transducer direct
119. inology 9 Way 25 Way D Pin D Pin No a ea ee Screen Figure 4 3 RS 232 Connections K156 Issue No 1 4 Operation 4 19 Connection Method To connect the RS 232 interface to an external computer system or printer plug the RS 232 adaptor into the Lemo socket Item 6b Fig 4 9 Figure 4 4 shows the permitted connection and usage methods YES SAFE AREA HAZARDOUS AREA Figure 4 4 RS 232 Connection Methods K156 Issue No 1 4 20 DPI 605 IS User Manual 4 5 5 Connection of External Transducers ENSURE THAT THE EXTERNAL TRANSDUCER TO BE EMPLOYED IS COMPATIBLE WITH THE PRESSURE MEDIA BEING USED BEFORE USING ANY OTHER TYPE OF TRANSDUCER THE USER MUST CHECK THAT THE PERMITTED TRANSDUCER AND CABLE PARAMETERS AS SPECIFIED IN THE CERTIFICATION SCHEDULE ARE NOT VIOLATED External transducers ordered as instrument options are delivered terminated with a suitable connector for direct interfacing with the instrument All Druck supplied External Transducers are approved for use with the DPI 605 IS Two types of external Piezo resistive external transducer may be used with the DPI 605 Digitally Compensated and Non Digitally Compensated Both types plug directly into
120. ion The user specifies a File ID and a Serial Number to identify the file which is created on the instrument in which the results are stored The File ID may be up to 18 characters long and Serial Number may be up to 17 characters long Both may contain alphabetical and numerical characters This manual mode of operation could be termed the unplanned mode Program Mode Program Mode allows the user to select a Test Program to be followed from any number of Test Programs previously downloaded to the instrument via the RS 232 port The results gathered during execution of the Test Program are stored in a file which is named by File ID and Serial Number K156 Issue No 1 A AutoCal A 3 PROGRAM MODE AUTOCAL SYSTEM OVERVIEW Test Programs are created on a computer software tool is necessary to perform this task and other tasks on the computer required to implement the system Examples of this tool could be InteCal and DPI 605 File Manager The Test Program is created in plain English A large number of Test Programs may be held on the computer at one time Once the program has been created it is stored and can be downloaded to the instrument when required After the Test Programis downloaded to the instrument it can subsequently be executed Results obtained during the execution of a Test Program are stored in a Results File The file on the instrument is identified by File ID and Serial Number The first Results Fil
121. isplayed in Fig 3 3 These functions remain displayed for approximately 60 seconds and if no selection is made the key allocations indicated are cancelled The function keys are only active whilst the key allocation legend is visible After this time out period the required mode must be re selected in order to activate the function keys again The function keys are essentially the second level of amenu structure Operation of a particular key takes the operator into the next level down in which the functions of its F1 to F4 keys would be re allocated Selection of a third level function could perhaps move the operator down into a fourth level in which the function keys would again be re allocated Operation of the Exit Menu key causes the system to move back up the menu structure to the level immediately above the current level or to clear the function key status line if it is already in the highest level K156 Issue No 1 TES 3 10 DPI 605 IS User Manual 3 7 Numeric Keys The numeric keys are used to enter numeric values Selected positive and negative values are accepted when oc the Enter ENT key is pressed The Delete key DEL CDER END provides an edit function by deleting the last digit entered via the keyboard 3 8 Pressure Key Functions The pressure keys are used to select pressure measurement parameters Range Pressure NOTE Used in conjunction with function keys F1 to F4 to select a
122. k Rate 0 0007 psi min Spec 0 0100 psi min PASS BSL Results Rslt 0 0059 Spec 0 1 FS PASS Ofst 2 8e 05 V Grad 0 071 V psi Test Results PRESSURE ELECT TIME psi V 0 0005 0 00002 15 40 19 0 0004 0 00001 15 40 20 0 0003 0 00001 15 40 22 0 0004 0 00001 15 40 24 0 0004 0 00001 15 40 25 0 0005 0 00001 15 40 27 0 0005 0 00005 15 40 28 0 0004 0 00004 15 40 29 Printed 10 26 09 17 03 93 Authorised K156 Issue No 1 A 20 DPI 605 IS User Manual Example 1 Upload of Results File Calibration Certificate Test Equipment DPI 605 Serial No 0 DPI 605 S W Version 2 00 Pressure Range 20 0 Bar Device Under Test File ID ABCDEFGHIJKLMNOPOR Serial No 12345678901234567 gt 1 Date 16 03 93 Time 15 39 36 Device Type gauge DUT Full Scale 10 00000 TEST PROG COMPILED WITH 605 FILE MANAGER NOTE Please enter your employee No 171 NOTE Enter ambient temperature 21 Leaktest Results End Pressure 0 0004 psi Start Pressure 0 0003 psi Pressure Drop 0 0001 psi Leak Rate 0 0007 psi min Spec 0 0100 psi min PASS BSL Results Rsit 0 0059 Spec 0 1 FS PASS Ofst 2 8e 05 V Grad 0 071 V psi Test Results PRESSURE ELECTRICAL TIME psi V 0 0005 0 00002 15 40 19 0 0004 0 00001 15 40 20 0 0003 0 00001 15 40 22 0 0004 0 00001 15 40 24 0 0004 0 00001 15 40 25 0 0005 0 00001 15 40 27 0 0005 0 00005 15 40 28 0 0004 0 00004 15 40 29 Printed 10 26 30 17 03 93 Authorised
123. lay is selected a directory showing the first page of Data Logged files is displayed To replay a Data Log file select the desired file by means of the Page Up F1 Page Down F2 T F3 or J F4 cursor keys and press the ENT key on the numeric key pad Four display modes are then provided these being termed Display F1 Graph F2 Printer F3 and Upload FA o Display When the Display option F1 is selected the data contained in the first location of the file is recalled to the display Data in each sequential location can then be recalled by operation of the Next key to go forward or the Previous key to go back The end of file is indicated by the message End To exit Display mode press the Exit Menu key K156 Issue No 1 TES 3 28 DPI 605 IS User Manual 3 10 4 Data Log Contd o Graph The Graph option is used to provide a graphical indication of a selected Data Log file Three options are provided i g i PvT Pressure v Time EvT Electrical v Time and PvE Pressure v Electrical A typical display is shown below 9 20579 0 Seconds 10 To exit Graph Mode press the Exit Menu key o Print Selection of the Print option enables all data associated with the selected replay file to be downloaded to a printer To make use of this option a printer must be connected to the RS 232 interface The appropriate printer must also have been selected from the Set up Menu Refer to Section 3 10
124. le of some commands is shown below Message please connect up device under test Test Pressure P limits Message please go to next pressure Test Pressure P limits Message please go to next pressure Test Pressure P limits End Block The data in this block is used to specify any activity required after the completion of the execution of the Test Block The data takes the form of a series of individual SCPI commands and as such is of variable length and content The example below shows the display of a message on the screen and the specification of a BSL test on the results obtained from execution of the Test Block Message please disconnect device under test BSL limits units messages Message if device failed please replace and repeat test 5 OUTPUT OF TEST RESULTS Results Files in the instrument may be exported from the instrument via the RS 232 port in any of the three ways detailed below Print Using the instrument keypad the required Results Fileis selected for Replay and the Print option chosen The instrument then transmits the Results File via the RS 232 port The data is formatted to suit the optional DP 605 Printer K156 Issue No 1 A AutoCal A 7 Upload Using the instrument keypad the required Results File is selected for Replay and the Upload option chosen The instrument then transmits the Results File via the RS 232 port The data is formatted to mak
125. lection of Calibration Routines The calibration routines are entered via an option of the SET UP facility Cal Test F4 To select the calibration mode proceed as follows ce Switch the instrument ON o Press the SET UP key o Select Cal Test F4 from the SET UP menu The instrument will now prompt for the entry of a PIN number Atypical prompt is shown below NOTE If there is a long delay between the request prompt and entry of the PIN number the display will time out and Set up will then need to be re selected Cal Test Enter pin Number Enter the correct P I N number and press ENT Initially the instrument is supplied with P I N number 123 installed At the Enter Pin Number prompt enter the P I N number to gain access to the user Cal Test menu as follows User Cal Test Menu Cal Test New Pin F1 F2 F3 These three options Cal F1 Test F2 and New Pin F3 provide access to the instrument s calibration Cal Test and selection of a new P I N number new Pin routines UNDER THE TEST F2 KEY ARE POWERFUL FAULT FINDING AIDS MISUSE OF THE FACILITIES WILL CAUSE SERIOUS DAMAGE TO THE INSTRUMENT THEY SHOULD THEREFORE ONLY BE USED BY TRAINED SERVICE PERSONNEL f IT SHOULD BE NOTED THAT THE FACILITIES K156 Issue No 1 il 6 2 DPI 605 IS User Manual 6 1 Selection of New P I N Number Access to all the calibration and test routines are protected by a P I N number Initially on delivery
126. llows Cal Test Enter Pin Number o Enter the P I N number 123 on the numeric keypad and press ENT The instrument now displays the Cal Test menu e g Cal Test menu Cal Test New Pin o Select New Pin F3 and a prompt is given for a new P I N number e g Enter new Pin number oO Enter key alone sets no Pin number K156 Issue No 1 4 4 o Defaults o Battery Status Cal Test Cal Test New Pin WARNING o DPI 605 IS User Manual Enter a new P I N number via the numeric keypad and press ENT At the Verify new Pin number prompt enter the new DIN number via the numeric keypad and press ENT If the new P I N number is entered correctly the instrument responds with Verification OK and exits the Set up mode If the new P I N number is entered incorrectly at the Verify New Pin Number prompt the instrument responds with Pin numbers do not agree and exits the set up mode and the old P I N number is retained THE INSTRUMENT CALIBRATION CAN BE LOST BY INCORRECT USE OF THE CALIBRATE FACILITY Instrument Clock Time and Date To set up the instrument Clock Time and Date proceed as follows Defaults Battery Status Cal Test e Units e Comms Clock e More Time Date o o o Switch the instrument to ON Press the SET UP key The following display prompt will be shown e g Set up menu Defaults Battery Status Cal
127. load of results and SCPI upload of results ABSarg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 This command has eight mandatory arguments e The first argument represents the zero point Pressure of the transducer under test e The second argument represents the zero point of the instrument s electrical output o The third argument represents the full scale point Pressure of the transducer under test o The fourth argument represents the full scale point of the instrument s electrical output o The fifth argument is a number representing the specified allowable deviation from the Absolute Straight Line e The sixth argument specifies the units of the fifth argument e g PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent the selected electrical unit RDG To represent percent of reading FS To represent percentage of full scale o The seventh argument is a string of up to 40 characters which can be displayed when the ABS calculation is completed by the instrument and the specified deviation has been met K156 Issue No 1 A AutoCal A 15 o The eighth argument is also a 40 character string which can be displayed when the ABS deviation exceeds that specified in arg5 PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent the selected electrical unit RDG To represent percent of reading FS To r
128. lows 3 10 1 On Off This toggle action key is used to switch the instrument ON or OFF The instrument canbe programmed to switch itself off after a defined period of inactivity i e no key presses by means of the set up facility It should be noted that during Data Logging and Leak Testing the Auto Power off facility is disabled The default setting for the Auto Power off facility is 30 min 3 10 2 Set up SET Used to set up the instrument default settings battery status and cal test and functions Defaults This function is used to set up the following functions o Units Function used to select default units for the Pressure and Temperature measurands K156 Issue No 1 3 Familiarisation 3 17 Pressure SET Used to select the pressure units assigned to function keys F1 F2 F3 and F4 See Units SMIT AUTO LEAK H b Pressure Key pad Section 3 8 Operation of this key DATA STORE i displays the full range of units available together withan indication of the units to which each function key is currently assigned bar torr ftH20 Pa F4 atm ftH204 hPa psi F2 Spec l kPa Ib ft2 Blank MPa inHg Blank mbar F1 inH2O Blank kg cm2 inH204 The default setting for any key is changed by pressing the required function key which will cause it to scroll through the menu missing out units assigned to the other function keys The key is assigned the unit beside which it is displayed
129. manner to the calibrator differing in that it contains only a single pressure transducer covering the specified pressure range A second transducer is only fitted if the Barometric option is ordered Figure 2 2 shows a simplified functional diagram of the indicator PRESSURE PORT EXTERNAL TRANSDUCER TEMPERATURE TRANSDUCER RS 232 KEYBOARD I i i I i a I i s I BREATHER PORT P PRESSURE Y VENT gt gt H DISPLAY oy V BAROMETRIC 1 OPTION i i i i MICROCONTROLLER 1 SYSTEM 3 ea I P pneumatic V_ 2 BAR 1 ASSEMBLY Ca P SWITCH TEST i rh DATALOG C i V_ 20 BAR INTERFACE S I i A I i SYSTEM POWER SUPPLIES I i POWER SUPPLY i i i 1 i BATTERIES i I i I 5 2 DMM 1 J INTERFACE i CIRCUITS 1 H Figure 2 1 Functional Diagram IS Calibrator Version K156 Issue No 1 2 Functional Description PRESSURE PORT EXTERNAL TRANSDUCER TEMPERATURE TRANSDUCER RS 232 KEYBOARD I REFERENCE PORT P Y VENT gt gt i V BAROMETRIC p OPTION l VENT MICROCONTROLLER i ALVE SYSTEM I k gt P gt i V I i mm gt i SYSTEM POWER SUPPLIES POWER I SUPPLY I dc BATTERIES RS 232 INTERFACE DMM INTERFACE CIRCUITS PRESSURE DISPLAY SWITCH TEST DATALOG
130. mber to record on an operation will result in the display of an error message File already exists o Memory Space On many Data Log and AutoCal screens a message e g free blocks 9198 appears This gives an indication of the amount of memory in blocks that is available for use When a screen of data is recorded one block is used for storing the time and date and one block for each measurand on the screen For example if the instrument was simply measuring pressure and voltage then to store one screen would take three blocks of memory However if the peak function was also enabled then five blocks would be used to store one screen one for each of the following Time and date Voltage measurement Pressure Measurement Peak high Peak low K156 Issue No 1 TES 3 30 DPI 605 IS User Manual 3 10 4 Data Log Contd When the instrument is used to replay a Data Log or AUTO AutoCal file a temporary file is created which is invisible ae to the user If there is not enough free memory space available a temporary file as large as possible is created Under these circumstances only the part of the replay file accommodated in the temporary file will be available for replaying If more space is made by deleting other files then replay of the whole file will subsequently be possible NOTE If the file is extracted from the instrument via the RS 232 interface using the SCPI protocol the whole file i
131. mity BAS No Ex 94C2046 BASEEFA being an Approved Certification Body in accordance with Article 14 of the Council Directive of the European Communities of 18 December 1975 76 117 EEC confirms that the apparatus has been found to comply with harmonised European Standards EN50 014 BS5501 Part 1 EN50 020 BS5501 Part 7 and has successfully met the examination and test requirements The apparatus markings shall include the code EEx ib IIC T4 where EEx CENELEC approved Hazardous Atmosphere Equipment ib Protection Level ib Zone 1 and Zone 2 use IIC Suitable with Hydrogen Acetylene gas groups T4 Maximum surface temperature of any component 135 C 40 C Ambient NOTE Attention is drawn to page 4 5 of the Instrument Certificate In order to comply with the Certificate of Conformity a maximum voltage of 30 V can be applied to the voltmeter ammeter terminals in a hazardous area 1 Introduction 1 1 1 INTRODUCTION 1 1 The DPI 605 is a rugged light precision instrument available either as a calibrator or an indicator Five versions of the instrument are available as follows This handbook describes the Intrinsically Safe versions of the Calibrator and Indicator e Commercial Calibrator Commercial Indicator e Intrinsically Safe Calibrator e Intrinsically Safe Indicator e Rack Mounted Calibrator The primary use of the DPI 605 IS instrument is as a rugged intrinsically safe portable instrument desig
132. mm x 280 mm x 370 mm Pressure Connections GY female and removable and NPT female supplied Equipment Shipping List des The instrument is supplied together with its standard accessories which are as follows Oty Item DPI 605 Instrument Carrying Case Set of Test Leads User Manual Calibration Certificate RS 232 Adaptor Lead Aa a ui ec echt zech BASEEFA certification schedule and certificate Comprises Instrument set of approved batteries amp Strap K156 Issue No 1 1 6 DPI 605 IS User Manual K156 Issue No 1 2 Functional Description 2 1 2 FUNCTIONAL DESCRIPTION The DPI 605 calibrator consists of apneumatic assembly which contains the input output pressure manifold two digitally characterised pressure transducers and the solenoid operated control valves associated with the pneumatic system If the barometric option is chosen a third resonant type transducer is fitted to the pneumatic assembly to measure atmospheric barometric pressure Figure 2 1 shows a simplified functional diagram of the instrument The electrical outputs from the pressure transducers representing the pneumatic manifold pressure input or output pressure is processed by the micro controller system to produce a pressure indication on a graphics display A digital multimeter DMM is incorporated into the instrument to allow external voltages and currents produced by the devices under test to b
133. n external system via the RS 232 port The file is transmitted as ASCII text and as such is readily readable and imported into common spread sheets such as Microsoft Excel etc To use the facility proceed as follows Ensure that the RS 232 port is set up to the requirements of the external system refer to Set up Section 4 4 2 Connect the external system to the instrument RS 232 output socket located on the right hand side panel Test Replay Directory Delete e Display e Graph e Print Upload Select AUTOCAL Select Replay option F2 from AutoCal menu and select file to upload Press Upload F4 The corresponding file will now be uploaded to the external system K156 Issue No 1 4 62 DPI 605 IS User Manual 4 13 4 Auto AutoCal Procedures In the Auto AutoCal mode of operation the user selects a test program which has been downloaded into the instrument via the RS 232 port Test programs are created external to the instrument on a computer by means of a software tool such as Druck s InteCal and DPI 605 File Manager Specific details regarding the building of Test Files are described in Appendix A To download a file into the instrument proceed as follows e Connect the instrument to the external computer system by means of the RS 232 adaptor lead o Switch the instrument ON o Check that the instrument s RS 232 port is set up to match that of the external system Communications p
134. n internal or external pressure transducer and if the barometric option is fitted absolute gauge or barometric pressure readings The external and barometric options are not extended to the function keys unless the relevant sensors are fitted or connected All pressure processing e g Tare is cancelled if a new range is selected Units Pressure Limits Pressure Used in conjunction with function keys F1 to F4 to select one of four pressure units for display A choice of any one of 24 pressure units is assigned to the F1 F4 function keys under SET UP refer to Section 3 10 2 Used in conjunction with the F1 and F2 function keys and the numeric Key pad to define the Alarm and Safety Limits for the instrument The maximum setting of the safety limit is 22 bar The maximum setting of the alarm limit is 700 bar The safety limit is always active but the alarm limit can be enabled and disabled Crossing the safety limit causes a pneumatic valve to close blocking the pump action and thereby preventing further pressurisation Pressing the Exit Menu key resets the safety limit K156 Issue No 1 Process 3 Familiarisation 3 11 The process key provides access to the following functions via the function keys o Tare Pressure o FS Pressure Filter Pressure Provides facility to offset the displayed pressure reading by either the currently
135. nction keys A square root symbol V is displayed when this function is enabled Changes the mode of the hand pump from pressure generation to vacuum generation and vice versa Change over cannot occur whilst either a high pressure or vacuum state exists in the outlet manifold If either of these conditions exist and change over is required the system must first be vented If an attempt is made to switch the system to vacuum whilst the manifold is still pressurised or vice versa a message is displayed e g Please Vent the System Used to provide a zero offset function for the pressure display This control cannot be used to remove very large offsets These should be removed by the Tare function Electrical Input Key Functions The four electrical input controls located in this Key pad area are used to control the mode of operation of the digital multimeter DMM section of the instrument The key functions are as follows Volts Electrical Input Selects voltmeter to be displayed in the electrical window of the display Voltage input signals are applied between the V and COM terminals The maximum voltage that K156 Issue No 1 3 Familiarisation 3 13 can be measured is 50 V d c and the voltage function is auto ranging The maximum range value is displayed on the instrument when this mode is selected e g Voltmeter FS 50 V All electrical processing e g Tare is cancelled if a new meas
136. nction to time out K156 Issue No 1 EE w 3 20 DPI 605 IS User Manual 3 10 2 Set up Contd o Auto Off The function available in this category allow the auto off features of the instrument to be set up There is only one option available Power o o Power Provides an option to select a power saving function for the instrument by providing a facility to allow an automatic turn off after a preset keyboard entered period of inactivity i e no key presses This facility is enabled by the Enable F3 option and disabled by the Disable F4 option The default setting gives a period of 30 min When one minute of the time out period remains the instrument produces short bleeps to warn the operator Pressing any key will reset the timer Resolution Used to select the number of significant figures displayed after the decimal point Can be set to provide a range of up to 6 digits depending upon the type of units selected and is applicable to the pressure reading only On State This feature provides the operator with the option of having the instrument to power up either in its last set up state as it was switched off or in the standard default state In the latter state programmed processes e g Tare and Filter would be automatically switched off when the instrument is switched off and any programmed outputs would be disabled If the instrument is programmed to Restore Last Set up all enable
137. nd by operating the hand pump calibrator or adjusting the applied pressure indicator until the pressure reaches a specified set point The measurands at this point are then recorded by manual operation of the AutoCal key Following this instructions to proceed to the next way point are given Auto AutoCal routines are described in Section 4 11 K156 Issue No 1 TES 3 36 DPI 605 IS User Manual 3 10 8 AutoCal Contd Replay The Replay option F2 is used to either recall any selected Sa AutoCal file to the display or to download the stored data to ane an external printer via the RS 232 interface port When Replay is selected a directory showing the first page of AutoCal logged files is displayed To replay a AutoCal file select the desired file by means of the Page Up F1 Page Down F2 T F3 or J F4 cursor keys and press the ENT key on the numeric key pad Four display modes are then provided these being termed Display F1 Graph F2 Printer F3 and Upload F4 o Display When Display is selected the instrument prompts for a file ID number of an AutoCal file to be entered Following entry of a file ID number the data contained in the first location of the file is recalled to the display Data in each sequential location can then be recalled by operation of the Next key to go forward or the Previous key to go back The end of file is indicated by the message End o Graph The Graph option i
138. ndshaking mode to be set up Two options are available Mone F1 and Software F2 SCPI Selection allows Echo of SCPI commands Echo on F1 and Echo off F2 K156 Issue No 1 3 Familiarisation 3 19 o Clock The clock facility permits the operator to set up the instru ment s clock and calendar functions Two sub functions TEST CAL Test Time and Date are provided each of which permit entry of a new system parameter i e Time or Date o SET Printer This facility offers a choice of printer which is selected from the printer set up menu Selecting the Printer option from the Default menu provides a list of printers supported by the instrument e g Printer Selection Druck 40 column printer 80 column printer Previous Next The currently selected printer is indicated by the position of the cursor arrow Use the Previous F1 and Next F2 keys to move the cursor arrow to select the required printer Press the Exit Menu key to return to the Default Settings menu Contrast This facility is selected by Defaults F3 from the Set up menu Itis used to select the contrast of the display and provides an adjustment over the range 0 Light to 100 Dark After selection the display indicates the current contrast level e g 50 as follows Adjust contrast 50 Up Down Select the required level by using the Up F1 or Down F2 keys Press Exit Menu to return to the Set up menu or allow the fu
139. ned to operate in hazardous environments General In its calibrator form the DPI 605 IS can generate and measure pressures up to 20 bar gauge The instrument s primary pressure range 20 bar gauge 21 bar absolute with the barometric option can be extended to 700 bar by the use of external transducers A digital multimeter DMM is built into the instrument to permit the independent monitoring of voltage and current signals The instrument has a temperature measurement facility using an external PT100 platinum resistance probe An RS 232 interface is also provided but this can only be used in a safe area In its indicator form the DPI 605 IS can measure pressures between 0 to 70 mbar to 0 to 70 bar gauge 0 to 350 bar sealed gauge or 350 mbar to 350 bar absolute depending upon range options Used in conjunction an external transducer the range can be extended to 700 bar K156 Issue No 1 1 2 DPI 605 IS User Manual 1 2 Applications The DPI 605 IS calibrator and indicators are is primarily used for calibrating transducers and systems over the ranges 1 to 20 bar gauge With the barometric option fitted the instrument is capable of reading absolute pressures in the range 0 to 21 bar absolute Used in conjunction with external transducers the range of the instrument can be extended to 700 bar Typical calibration applications are as follows e Calibration of o Pressure to voltage devices o Pressure to c
140. ns of the PRES VAC key Close the Vent Valve 2 oc Operate the Hand pump 3 to set up the required pressure Use the Volume Adjuster 4 as a fine adjustment of the output pressure o Use the pressure PROCESS functions as required by the test in progress The process functions are outlined in Section 3 K156 Issue No 1 4 26 DPI 605 IS User Manual Vent Port Vent Valve Hand pump Volume Adjuster 4 3 Pressure Port System Connector Panel DORE 10 Breather Port Device Under Test Connector Panel Keyboard Display Reference Port under oo ON 1 Figure 4 9 DPI 605 IS Instrument Controls and Connectors Calibrator K156 Issue No 1 4 Operation 4 27 4 6 1 Set Pressure Alarm and Safety Limits To set up the Alarm and Safety Limits and assuming the instrument to be switched ON proceed as follows Alarm Limit Press the LIMITS key located on the pressure keypad LIMITS S o Safety Select the Alarm function key F2 from the Pressure Limits Select menu The current alarm level setting together with its status will now be indicated e g Alarm Limit Off Value 18 000 bar On Off o Enter the required alarm level on the numeric keypad and press ENT e Enable the alarm by pressing the On F3 key Conversely disable the alarm by pressing the Off F4 key Safety Limit not applicable to the Indicator version LIMITS o Press the LIMITS key located on
141. nt s reading against a known standard K156 Issue No 1 4 Operation 4 67 4 16 1 Flushing the Instrument s Pneumatic System In extreme circumstances where the procedure outlined in Section 4 16 does not cure the problem the instrument s pneumatic system can be flushed out with clean or soapy water To flush the pneumatic system proceed as follows refer to Fig 4 9 Using a screwdriver remove the filter from the Pressure Port 5 and Vent Port 2 respectively Connect a clean tube to the Breather Port 7 via a G adaptor e Switch the instrument on and set it up to Pressure mode NOT Vacuum mode Place the open end of the tube connected to the breather port into a beaker of water or soapy water as appropriate and operate the Hand pump 3 to suck the cleaning agent into the instrument s pipe work e Remove the connection to Breather Port 7 Repeat the procedure outlined in Section 4 18 If the procedures outlined in Sections 4 16 and 4 16 1 fails to remove contamination the instrument will need to be dismantled this procedure being outside the scope of this document Please consult the instrument supplier K156 Issue No 1 Applications 5 1 5 0 5 1 5 2 APPLICATIONS The DPI 605 IS can be used in a number of ways to carry out calibration tests on many types of pressure devices and systems The calibrator version of the instrument can generate and monitor both pressures and electri
142. ntry of the following parameters Sequential prompts for data are requested as follows Enter File ID Transducer SN Enter FSD of transducer Alpha numeric parameters may be entered in the File ID and Transducer SN fields followed by ENT The FSD field only accepts numeric characters entered via the numerical key pad Following entry of these parameters the device under test is connected to the instrument and the required calibration test performed At each way point calibration data is stored by operation of the AutoCal Log key The Stop key terminates an AutoCal manual calibration sequence and provides access to an analysis of results function as follows e g Analyse Results BSL TSL ABS These options are Best Straight Line BSL and Terminal Straight Line TSL and Absolute ABS Both are straight line graphs of the form y mx c Grad a b Offset E u K156 Issue No 1 TES 3 34 DPI 605 IS User Manual 3 10 8 AutoCal Contd The BSL option calculates the best straight line taking every je oint measured into consideration whereas TSL draws the straight line between the lowest and the highest points ABS draws a straight line between a defined lower and higher points If ABS is selected the instrument will immediately prompt for a zero point for the pressure reading e g Zero input point Enter the required zero point and press ENT The next prompt requests the zero point for
143. nute After completion of the leak test if the leak rate is below that specified then the only option offered to the used is to Continue F1 If the leak rate is above that specified then three options are provided Accept F1 key Retry F2 key and Abandon F3 key All the data for the result of the leak test i e start pressure end pressure pressure drop and leak rate together with the specified permissible leak rate and PASS FAIL statement are presented in print of results upload of results and SCPI upload of results K156 Issue No 1 WW A 12 DPI 605 IS User Manual BSLarg1 arg2 arg3 arg4 arg5 This command has 5 mandatory arguments o The first argument is the Full Scale of the transducer under test The second argument is a number representing the specified allowable deviation from the Best Straight Line o The third argument is the units of the second argument e g PUNIT To represent selected pressure unit as specified in the Setup Block EUNIT To represent the selected electrical unit RDG To represent percent of reading FS To represent percentage of full scale o The fourth argumentis a string of up to 40 characters which can be displayed when the BSL calculation is completed by the instrument and the specified deviation has been met o Thefifth argumentis also a 40 character string which can be displayed when the BSL deviation exceeds that specified in arg2 The BSL c
144. ollowing e Vent Valve 2 e Volume Adjuster 4 Hand pump 3 e Pressure Test port 5 The associated pressure control panel is shown below A description of the controls is given in Section 3 To generate a vacuum proceed as follows o Switch the instrument to ON by means of the ON OFF key The instrument will normally default to its internal pressure 2 SE DEA transducers and to the pressure mode If however the CALL instrument was switched off leaving a sealed in pressure it will remain in the pressure mode NOTE The instrument cannot be directly switched from pressure to vacuum from a pressurised state K156 Issue No 1 4 32 4 8 DPI 605 IS User Manual o Open the Vent Valve 2 oe Press the PRESS VAC key to select the vacuum mode e Close the Vent Valve 2 oc Operate the Hand pump 3 to generate the required vacuum Measuring a Pressure To use the instrument for measuring a pressure proceed as follows MONITORED IS NOT LIKELY TO EXCEED THE MAXIMUM SAFE WORKING PRESSURE OF THE INSTRUMENT FOR CALIBRATOR VERSIONS REFER TO SPECIFICA TION SECTION 1 3 IF IN ANY DOUBT CHECK BEFORE CONNECTING THE INSTRUMENT N ENSURE THAT THE PRESSURE OR VACUUM TO BE Switch the instrument ON by means of the ON OFF key The instrument will default to its internal pressure transducers and to the pressure mode Press the UNITS key and use one of the function keys F1 to F4 to select the r
145. ommand should only be used in the End Block and only if three or more points have been logged during execution of the Test Block Execution of the command results in the instrument calculating the Best Straight Line BSL through all the logged points according to a least squares fit The deviation of each actual point from the best straight line is then calculated The worst case calculated deviation from the BSL is then displayed together with the specified deviation arg2 followed by either PASS or FAIL Four options are provided BSL Accept F1 Key Notes F2 key This shows the pass fail text arg4 or arg5 Details F3 key Displays Gain Offset of BSL Results F4 key Displays worst case deviation from the BSL and PASS or Fail K156 Issue No 1 A AutoCal A 13 The results of the BSL calculation i e worst case deviation offset and gradient of the Best Straight Line together with the specified permissible deviation are presented in printout of results upload of results and SCPI upload of results TSL arg1 arg2 arg3 arg4 arg5 This command has 5 mandatory arguments o The first argument is the Full Scale of the transducer under test o The second argument is a number representing the specified allowable deviation from the Terminal Straight Line The third argument is the units of the second argument e g PUNIT To represent selected pressure unit as specified in the
146. on the display occupies 4 bytes when stored and for each stored display the time is also stored which takes a further 4 bytes K156 Issue No 1 B 10 DPI 605 IS User Manual MEMORY DATALOG is used in conjunction with the commands following it to set up the Data Log function of the instrument MEMORY CATALOG is used to provide a list of files contained in the instrument Three file types exist AutoCal Test Programs AutoCal Result Files and Data Log Result files MEMORY DELETE is used to delete files contained in the instrument either by individual name or collectively MEMORY LOAD is used to upload files from the instrument The file must be specified by its name in single or double quotes ADIF is the name of the SCPI file format used by the instrument and it should be noted that it is the default command following LOAD To upload a file called TESTFILE1 the following command string would be used MEMORY LOAD TESTFILE1 The TSL and BSL commands can be used when uploading AutoCal Results Files to perform TSL and BSL calculations on the results if these were not performed as part of the test itself see AutoCal Description Appendix A MEMORY RECALL provides a means of uploading the contents of the memory locations found under the STORE and RECALL buttons on the keyboard A specific location may be specified by a number between 1 and 20 or simply the next location may be specified MEMORY STORE
147. options e comms lt _ available under the option selected in the block immediately e More above Option selected at this level is shown in blue m lt Options shown indicate all the options available under the ate option selected in the block immediately above If selected will be shown in blue By working down the icon from the top to bottom the key sequence for the system function at the lowest level is obtained The example above shows the key sequence required in order to change the instrument s system time i e SET UP Defaults Clock Time K156 Issue No 1 4 Operation 4 3 4 4 Instrument Set up The instrument is supplied calibrated number of other parameters are also factory set as follows Time Set to U K local time Date Set to current date e Contrast 50 e Auto Off Disabled e Display Rounding Resolution Set to maximum e Initial Pin Number Set as 123 e On State Set to restore last Set up ON First Time Operation Set P I N Access to the DPI 605 IS calibration utilities are password protected a factory set password 123 is entered into every instrument delivered To set anew DIN number proceed as follows e Switch the instrument to ON o Defaults e Battery Press the SET UP key o Status Cal Test o Select Cal Test F4 from the Set up menu The a Test instrument will now prompt for entry of the current New Pin password as fo
148. ory Selection of the AutoCal Delete function F4 initially provides the option to delete files located in either the Tests directory or the Results directory The appropriate directory is selected by means of either the Tests F1 or Results F2 keys Selection of one of these directories produces the appropriate directory listing typical listings are shown below AutoCal Tests TS150000000000000001 TS150000000000000002 TS150000000000000008 TS150000000000000032 TS150000000000000033 Page Up Page Down Free Blocks 9212 N1234543670111111112 N1234543670111111113 N1234543670111111114 N1234543670111111115 N1234543670111111116 T I Typical Tests Directory K156 Issue No 1 3 Familiarisation 3 39 AutoCal Results Free Blocks 9196 TS150000000000000001 N1234543670111111112 gt 1 TS150000000000000002 N1234543670111111113 gt 1 TS150000000000000008 N1234543670111111114 gt 1 TS150000000000000032 N1234543670111111115 gt 1 TS150000000000000033 N1234543670111111116 gt 1 Page Up Page Down T Typical Results Directory The Page Up and Page Down keys are used to select the appropriate directory page and the T and 4 keys to select the file on the page To delete a selected file position the cursor against the file name and press the ENT key on the numeric key pad Providing the file is not password protected a pre delete warning is displayed as follows Delete Are you Sure Yes No The file is delete
149. ory proceed as follows o At the External Transducer directory refer to Paragraph 6 3 position the cursor at an Undefined location and press Select F4 If all locations are occupied one location will need to be deleted by means of the Delete F3 key Select FS Type SN F3 from the External Pressure Transducer Cal menu Select FS F1 and enter the full scale reading of the transducer on the numerical key pad and press ENT Select Alter Type F2 and select transducer type by pressing Absolute F1 Gauge F2 or Differential F3 as required Select Serial No F3 from the External Pressure Transducer Cal menu Enter the serial number of the transducer on the numeric key pad and press ENT Press Exit Menu The External Transducer menu is now displayed from which the newly specified transducer can now be selected K156 Issue No 1 G Calibration 6 11 6 4 Key Locking Facility This feature will allow any of the keyboard keys with the exception of the On Off key to be either enabled or disabled To change the status of any keys from unlocked to locked and vice versa proceed as follows setup oe Switch the instrument ON Defaults i cu Press the SETUP key and select Cal Test and enter the PIN Cal Test number e Cal A Test o Select Keyboard from the Cal Test menu A complete Non listing of the keys is now written to the display together Keyboard i with the current status of each key
150. ould configure the instrument to display pressure in Torr UNIT PRESSURE SFACTOR provides the ability to set the scaling factor for the special pressure unit K156 Issue No 1 B SCPI Communications Protocol B 17 UNIT TEMPERATURE provides the ability to set the temperature measurement to be displayed in C or F For example UNIT TEMPERATUREF would configure the instrument to display temperature in F Special Commands These commands begin with an asterisk instead of a colon They are called common commands by the SCPI standard Of the 10 standard common commands shown in the Command Tree only two are usefully implemented in the DPI 605 o IDN This returns a string identifying the manufacturer of the instrument the instrument type its serial number and its software version number o RST This command resets the instruments display to the default condition i e displaying the main Internal Pressure Range on the left hand side of the display and the Ammeter on the right No processing functions are activated and the programmable outputs are de activated 5 EXAMPLE USE OF COMMANDS The following example provides the commands to do the following Set the instrument to read barometric pressure Set the pressure units to mbar Select the ammeter for the electrical measurement Request a reading of pressure o Request a reading of current o K156 Issue No 1 B 18 DPI 605 IS User Manual
151. ple 5 After Continue F1 has been pressed log at 1 minute intervals after a negative going logic signal 30 V max to 0 V is first applied between sockets A ve and B ve Stop after 50 Samples have been taken or following sS t o P command F4 from key board Figure 4 12 Periodic Mode Summary Screens Contd K156 Issue No 1 4 Operation 4 45 Record o Replay Directory o Delete a Continue e Quit Periodic o Event Stop Time Samples Event Mode The Eventtrigger mode is used where Data Log operations are to be triggered by external events Three basic event modes are provided Now F1 Later F2 and Condition F3 A manual trigger facility is extended to the F1 function key by the Now option and a Data Log operation is recorded every time the Log key F1 is pressed The function is exited by pressing the Stop F4 key Single Shot timed operation is provided by the Later option F2 and a Data Log operation is recorded at the programmed time The Condition option F3 allows the external event trigger to be selected from either a Switch Logic or Threshold condition Switch F1 and Logic F2 provide repetitive trigger actions to the Data Logger and Threshold F3 a One Shot trigger i e the first time that a pre programmed threshold is exceeded in either a positive or a negative direction Section 3 10 4 page 3 25 details the functions associated
152. ples gt VI LU LU oasis AuToca EE CALL FALL pelt __GsTore TEST SE DISPlay a GWINDow CCONTrast GPRESsure STATe 2PROTection Even gt _CEPV GOUTPur GTEMPerature 7 C GURRent gt L_CvoLrager D __c RESsure gt K156 Issue No 1 B 8 DPI 605 IS User Manual EViation GPERGent DATA __cGSTATey LEES ZERO Leer GLPAS __CESTATe CARE CGsTATe gt SENSe GLEAKtest gt RESE Lem GsWitehtest TTEMPerature VOLrage __ GpRESsure GRE Solution gt C RANGe Lee GPRINter ower TREGali gt Timeout Les IME VERSION OPERation _ GEVEND 1 GenaB ie TQUEStionable EVEND ENABIe TPRESet _ CGPRESsure gt GSFaGter G GTEMPerature K156 Issue No 1 B SCPI Communications Protocol B 9 COMMAND DEFINITIONS There are over 150 commands in the command tree many of which are self explanatory indeed one of the benefits of SCPI is
153. plugged in transducer is automatic If None F3 is selected from the External Range Menu the pressure display defaults to reading mV 4 9 Leak Test To carry out a leak test with the instrument proceed as follows LEAK TEST o Open the Vent Valve 2 to depressurise the Start instrument Wait Time Connect the system or device under test to the Reset Pressure Port 5 o Remove any zero offset by pressing the zero key K156 Issue No 1 4 34 DPI 605 IS User Manual LEAK TEST o Select LEAK TEST on the blue mode select keys Four Start options will now be displayed over the function keys Start F1 Wait F2 Time F3 and Reset F4 The dialogue line of the display will also show the function and the currently set Wait and Time parameters e g Leak Test Wait 00 05 00 Time 00 02 00 The electrical window is also re configured to show e g Pressure Drop Leak Rate o If required press the Wait function key F2 and enter the required wait period in seconds on the numeric keys followed by the ENT key This parameter defines the delay period between the pressing of the Start key and commencement of the measurement period A period of 180 seconds minimum is recommended Set up the required test duration period by pressing the Time key and entering the required test duration period on the numeric keys followed by ENT Close the Vent Valve 2 and using the Hand pump 3 pump up
154. positive and pin 2 negative 1 Point This function provides the ability to make a single offset style correction to the indicated barometric pressure The procedure is simply to enter the accurately known barometric pressure via the key pad This causes the indicated barometric pressure to take on the value entered The Electrical F2 option of the Calibration Adjustment Menu provides access to the calibration adjustment functions for all the electrical ranges of the instrument namely the voltmeter ammeter and thermometer Calibration adjustment of the voltmeter is carried out individually for each of the four voltmeter ranges which comprise the auto ranging voltmeter The voltmeter range to be adjusted is selected i e 50V 10V 1V or 100mV and voltages of zero and nominally full scale are applied The exact value of applied voltages are entered via the key pad Calibration adjustment of the ammeter takes the form of applying currents of zero and just less than full scale to the ammeter and entering the exact values of the currents via the key pad Calibration adjustment of the thermometer takes the form of applying a resistance of 174 ohms and 82 ohms to the thermometer input marked PT100 on the system connector panel The exact value of these resistors is entered via the key pad K156 Issue No 1 EE 6 6 DPI 605 IS User Manual 6 2 Instrument Calibration Pressure Contd The Ratio F3 option
155. ransducer sssisseisesisssinesrinrerinerrrrrni 6 6 6 3 1 TWO POINT Calibra ti HE een 6 7 6 3 2 Linearity Multiple Point Cal 6 8 6 3 3 Temperature Compensation 6 9 6 3 4 External Transducer Parameter Entry ssssnnnensnesnrnnnnnn 6 10 6 4 Key L cking FACIE sais ca cantina sets een 6 11 APPENDIX A nee EEN deet ees AutoCal APPENDIX B ansehen SCPI Communications Protocol K156 Issue No 1 vii ABBREVIATIONS NOTE Abbreviations are the same in the singular and plural ac atm 2G oF COM cm contd dc DMM DUT ENT FS ft kg LSD Pa PIN mA mH 04 mm N C No PRESS PTX RDG RS 232 SCPI T VAC alternating current atmosphere degrees Celsius degrees Fahrenheit common centimetre squared continued direct current digital multimeter device under test enter full scale feet kilogram Least significant digit Pascal personal identification number milli Amperes metres of water at 4 C milli metres No Connection number pressure pressure transmitter reading serial data transmission standard Standard command for programmable instrumentation tare vacuum K156 Issue No 1 vill K156 Issue No 1 INTRINSIC SAFETY CONDITIONS OF USE This instrument is designed to be intrinsically safe when operated in accordance with the BASEEFA Certification document and Schedule with which it is supplied BASEEFA Certificate of Confor
156. res When all the Data Log parameters for this option have been defined a summary screen will be presented e g Data Log Parameters Logging Trigger Start Logic Test Log on Periodic time ve edge 00 00 30 Stop 50 Samples File ID AZ376 Continue Event The Event mode enables the Data Logger to be triggered by external events Three event options are available Now Laterand Condition The Now option provides the operator with the facility to manually trigger a log operation each time the Log F1 key is pressed The mode is exited by pressing the Stop F4 key The Later Option permits a future start time to be entered to perform a single shot logging operation at a pre programmed time K156 Issue No 1 TES 3 26 DPI 605 IS User Manual 3 10 4 Data Log Contd The external Condition switching options available under the Event Logger mode are either Switch Logic or Threshold Switch The Event Switch option is used to select the operation of an external switch connected between the A B terminals to trigger the Data Log operation A choice of normally closed Wait Switch Closed or normally open Wait Switch Open is provided In either of the Switch modes the selected Log operation is initiated every time the switch contacts change state The Data Logging operation is then manually terminated when the Stop F4 key is pressed Logic The Logic option is used to trigger the
157. ry STATus PRESet SS_status_preset_cmd STATus QUEStionable CONDition SS_status_quest_cond_qry STATus QUEStionable ENABle SS_status_quest_enable_cmd StatQuesEnab NUMERIC_INT SINGLE STATus QUEStionable ENABle SS_status_quest_enable_qry STATus QUEStionable EVENt SS_status_quest_event_qry K156 Issue No 1 B 30 DPI 605 IS User Manual SYSTem DATE date_cmd Set or obtain date year NUMERIC_INT SINGLE month NUMERIC_INT SINGLE day NUMERIC_INT SINGLE SYSTem DATE date_qry Set or obtain date SYSTem ERRor SS_system_error_qry SYSTem FKPunits fnkeyunits_cmd Set or read pressure units assigned to units function keys fnkey ENUMERIC SINGLE fkunits SUFFIX_DATA SINGLE SYSTem FKPunits fnkeyunits_qry Set or read pressure units assigned to units function keys SYSTem POWer RECall recall_state_cmd recall_sta BOOLEAN SINGLE SYSTem POWer RECall recall_state_qry SYSTem POWer TIMeout TIME powertime_value_cmd powertime_val NUMERIC_REAL SINGLE SYSTem POWer TIMeout TIME powertime_value_qry SYSTem POWer TIMeout STATe powerdown_state_cmd powerdown_stat BOOLEAN SINGLE SYSTem POWer TIMeout STATe powerdown_state_qry SYSTem POWerl STATel power_state_cmd power_stat BOOLEAN SINGLE SYSTem PRINter printer_value_cmd printer_val NUMERIC_REAL SINGLE K156 Issue No 1 B SCPI Communications Protocol B 31 SYSTem PRINter printer v
158. s always retrieved Delete This Data Log function enables files to be deleted from the Data Log memory Selection of the function provides a directory listing and four cursor keys Page Up F1 Page Down F2 T F3 and J F4 e g File ID Data Log Free Blocks 10846 28 01 93 15 37 10 28 01 93 15 40 30 28 01 93 15 43 16 28 01 93 15 49 32 28 01 93 15 58 29 Page Up Page Down T L The Page Up and Page Down keys are used to select the appropriate directory page and the T keys to select the file on the page To delete the selected file position the cursor against the file name and press the ENT key on the numeric key pad A warning is displayed as follows Delete Are you sure Yes No The file is deleted on subsequent operation of the Yes F3 key or the Delete operation aborted by operation of the Mo F4 key K156 Issue No 1 3 Familiarisation 3 31 3 10 5 Leak Test 3 10 6 This function provides a leak test facility for the unit sys AUTO Y LEAK tem under test When the facility is selected the electrical window of the display is re configured to indicate Pressure Drop and Leak Rate Four sub functions are allocated to the facility as follows Wait Permits the entry of a delay period between operation of the Start function and commencement of the test period Time Sets the duration of the leak test period Start Initiates a leak test Reset Clears leak test display values after t
159. s used to provide a graphical indication of a selected AutoCal file Three options are provided PvT Pressure v Time EvT Electrical v Time and PvE Pressure v Electrical A typical display is shown below It should be noted that if the Dial Gauge display option has been selected EvT gives a graphic output of Dial P v Points and PvE Pressure I P v Dial Gauge reading K156 Issue No 1 3 Familiarisation o 337 9 20579 nr 3 77796 0 Points 10 Printer Selection ofthe Printeroption enables all data associated with the selected replay file to be downloaded to a printer To make use of this option a printer must be connected to the RS 232 interface The appropriate printer must also have been selected from the Set up Menu Refer to Section 3 10 2 Printer co Upload This option is used to transmit Upload AutoCal data to an external system via the RS 232 port Note that the RS 232 port must be configured in the correct way for the external system RS 232 configuration is carried out under the Set up option Refer to Section 3 10 2 COMMS Directory The AutoCal Directory option provides access to two directories a Tests directory and a Results directory The relevant directories are selected by the Tests F1 and Results F2 keys Both directories are listed in the order in which the AutoCal operations were carried out For Auto AutoCal this means the order in which the tests were programmed and the
160. sed for both manual and automatic calibra tionroutines Automatic calibration routines are downloaded from an external system via the RS 232 interface port This function configures the instrument to store a large number of test data screen displays The AutoCal log option provides two basic facilities Test and Replay In addition two utility options are provided Directory and Delete Vhen the AutoCal function has been selected the function keys F1 to F4 are respectively allocated to the Test Replay Directory and Delete functions This section provides a basic overview of these options Full details of the operation of the AutoCal facility are given in Section 4 13 Test The AutoCal Test mode is used to carry out calibration tests on devices and to automatically log all measurands associated with the test Two AutoCal modes are provided Manual and Auto K156 Issue No 1 3 Familiarisation 3 33 o Manual Initially when the Manual option is selected a facility is AUTO LEAK provided to have two types of display Pressure Electri cal and Pressure Gauge Pressure Electrical is the standard display and is selected by the Yes F1 function key Pressure Gauge provides a facility to manually enter a pressure gauge reading against the DPI 605 IS pressure display for each Log operation and is selected by the Dial Gauge F2 function key Following selection of the desired display option the instrument requires e
161. selected Data Logging operation on receipt of a trigger pulse level 5 to 30 V d c which is applied between the A and B terminals of the instrument The logger is negative edge triggered The Data Logging operation is then manually terminated when the Stop F4 key is pressed i FACILITY TO BE USED IN SAFE AREA ONLY Threshold The Threshold option is used to initiate a one shot Data Log sequence when either the pressure measurement or the selected electrical input volts mA or Temp measurement passes a preset operator programma ble level For each type of measurand the direction through the preset threshold either positive or negative i e rising or falling can be selected The Data Logging operation then terminates when the Stop F4 key is pressed When all the required Event Data Log parameters have been defined a summary screen is written for the display e g K156 Issue No 1 3 Familiarisation 3 27 N A Data Log Parameters Logging Trigger CIECIE ETDI SORE FE Log on Threshold 12 5000 bar Stop Single Shot File ID E1220 Continue The screen remains displayed until either Continue F1 or Quit F2 is pressed Following selection of Continue F1 the selected Event Data Log function is enabled Replay The Replay option F2 is used to either recall any selected Data Log file to the display or to download the stored data to an external printer via the RS 232 port When Rep
162. ssure and electrical readings it is ready for operation A Low Battery warning is given when the internal batteries are approaching exhaustion An appropriate operating time of 1 minute is left when the Battery Low warning is given K156 Issue No 1 2 Functional Description 2 5 Battery Removal and Replacement Check Battery Status The DPI 605 IS calibrator and indicator instruments are powered by Alkaline D Cells The battery status can be checked from the Setup menu as follows o Select Setup by pressing the Setup key Defaults Battery o Select Battery F2 from the Setup menu The battery Stat x SE aea status will now be indicated e g Battery 8 94 V Good e Replace the batteries if Battery Status Poor is reported Battery Replacement The battery compartment for the DPI 605 IS calibrator and indicator is located in the base of the instrument as shown in Fig 2 3 BATTERY REPLACEMENT SHOULD ONLY BE CARRIED OUT IN A SAFE NON HAZARDOUS AREA ONLY THE FOLLOWING TYPES OF BATTERY MAY BE USED USE OF ANY OTHER TYPE WILL INVALIDATE THE INSTRUMENT S SAFETY CERTIFICATE oe Duracell Standard or Procell MN 1300 Panasonic LR20 2BP Varta Energy 2000 Series Part No 4020 To change the batteries proceed as follows A SAFE AREA AND THAT THE INSTRUMENT IS ENSURE THAT THE EQUIPMENT IS LOCATED IN SWITCHED OFF K156 Issue No 1 2 6 DPI 605 IS User Manual Turn
163. st e Units Comms e Clock e More Baudrate Parity Handshake SCPI HO He HE Parity This option allows the RS 232 parity checking mode to be set up Three options are available Odd F1 Even F2 and None F3 Handshake Selection of this option allows the RS 232 handshaking mode to be set up Two options are available None F1 and Software F2 K156 Issue No 1 4 Operation 4 11 SCPI Defaults Battery Selection allows Echo of SCPI commands ECHO ON F1 Status e Cal Test and ECHO OFF F2 e Units Comms e Clock e More Baudrate Parity Handshake o SCPI 4 4 3 Select Printer and Print Screen Printer To select a printer proceed as follows oe Switch the instrument to ON Defaults Battery oe Press the SET UP key Status Cal Test TE e Select Defaults F1 from the Set up menu e nits e Comms e Clock o Select Printer from the Select Default Settings menu The ae printer select option is on the second level of the Default e Printer Settings menu and is accessible by first of all pressing the More F4 key on level 1 e More Previous Next Selecting the Printer option F3 from the Default Setting menu provides a list of printers supported by the instrument e g Printer Selection Druck 40 column printer 80 column printer Previous Next K156 Issue No 1 4 12 DPI 605 IS User Manual The
164. t being measured by the instrument at the time then the value returned is undefined and an error message is placed in the error queue see SYSTEM ERROR CALCULATE lt 2 gt KMATH DEVIATION is used to set up the Deviation function found under the Process key Four parameters follow the Deviation command they are o The lower pressure value o The corresponding electrical value o The higher pressure value o The corresponding electrical value CALCULATE lt 2 gt KMATH PERCENT is used to set up the Percent Function found under the Process key Two parameters follow the Percent command they are the measurand value corresponding to zero percent the measurand value corresponding to 100 percent CALCULATE lt 2 gt FORMAT is used to select which of the mutually exclusive Processing functions is activated The possibilities are NONE PERCENT DEVRDNG DEVPUNITS DEVFS DEVEUNITS CALCULATE lt 2 gt STATE is used to turn the selected processing functions ON and OFF K156 Issue No 1 B SCPI Communications Protocol B 13 CALCULATE lt 2 gt DATA returns the pressure or electrical reading effectively the same as the READ command CALCULATE lt 2 gt PEAK provides access to the Peak function found under the Process key Note that this is not mutually exclusive with the other processing functions INPUT lt 2 gt provides access to the Flow Zero Filter and Tare functions found under the Process keys of the instrument
165. ted operation and currently set value of any associated parameters Key Annunciators Displays the function allocated to the function keys F1 to F4 located immediately below the display The functions are software selected and will depend upon the currently selected mode of operation 3 5 Keyboard The keyboard of the DPI 605 IS is divided into six groups Four function keys F1 to F4 and Exit Menu Numeric keys Pressure measurement keys Mode select keys K156 Issue No 1 3 Familiarisation 3 9 3 6 Function Keys The calibration and measurement functions of the DPI 605 IS are menu driven by the instrument software and the user dialogue is via the four function keys labelled F1 F2 F3 and F4 These function keys are allocated specific functions depending upon the particular mode of operation of the instrument which has been selected The function allocated to each particular key is indicated by the Key Function Annunciator line of the display which writes a specific legend over the top of the key The Exit Menu key is a special key whose function is not software allocated An example of a typical function key allocation is shown below Pressure Processing Selection Tare Peak FS Figure 3 3 Typical Function Key Allocation In this example which is displayed after operation of the PROCESS key located in the pressure measurement group of keys the primary functions allocated to the keys are as d
166. teria for the test Test Programs are transferred to the instrument in the form of a file The structure of the contents of the file is based on the 1992 SCPI Data Interchange Format The contents of the file is shown below File Name The Test Program file name is made up of three fields o The first is referred to as the File ID and must be 18 characters long padded with spaces if necessary Two spaces separate the first field from the second field The second field is referred to as the Serial Number and must be 17 characters long padded with spaces if necessary o The last field specifies a 4 digit PIN number which is required to facilitate deletion of the Test Program and any associated Results Files on the instrument if the PIN number is 0 or no PIN number is specified then deletion may be made freely without a PIN number The file name always starts with ADIF and an example is shown below ADIF Test file No 12345 PDCR 93 03 4321 P 9999 This represents a file ID of Test file No 12345 and a serial number of PDCR 93 03 4321 and PIN number 9999 K156 Issue No 1 A AutoCal A 5 Header Block The data in this block mainly details the device to be tested The information is displayed on the instrument for the operator to confirm No commands are contained in the Header Block The instrument identifies each field in the Header Block by field identifiers this means that the fields may be in any order and som
167. that the actual command words do convey some meaning The following description describes the more important and useful commands This should be the starting point for the newcomer to using the SCPI protocol It does not detail every command or every facet of each command Together with the Command Tree however it should provide all the information required to perform most common operations such as selecting measurement ranges and taking readings etc All commands follow the syntax rules and no harm can be done to the instrument by sending incorrect commands A small amount of experimentation with an instrument should therefore successfully answer any simple queries encountered It should be noted that in the many examples listed below for the sake of clarity no use has been made of default commands and short form command names iNFO TSL BSL NOTE GT PT LEAK ACC MESS These commands all relate the AutoCal mode of operation of the instrument they are generally only of use in AutoCal Test Procedures and definitions of them can be found elsewhere MEMORY Relates to all memory related operations of the instrument MEMORY SAVE is used to send AutoCal Test Programs to the instrument Refer to Appendix A AutoCal MEMORY FREE returns the number of bytes of data memory available and the number of bytes used Datamemory is used for storing AutoCal Test Programs AutoCal Results Files and Data Log Results Files One reading
168. the corresponding electrical output e g Zero output point Enter the electrical level corresponding to the zero output point and press ENT This will automatically be in the selected units Repeat the necessary responses to the corresponding FSD level point prompts e g FSD input point FSD output point Following the entry of zero and full scale data for ABS or the selection of either BSL or TSL the results sub menu is written to the display as follows e g TSL Result 1 1 FS Details Results Quit K156 Issue No 1 3 Familiarisation 3 35 For the selected straight line graph Details provides a display showing the offset vertical axis intercept value and TEST TEST the gradient of the line e g DATA DE Ofst 0 063u Grad 1 26 u bar Details Results Quit u denotes units where an external input is entered under the dial gauge option Where electrical units are displayed u would be replaced by e g MA The Results option provides a display showing the maximum deviation from the straight line in terms of a percentage of full scale Auto This mode is selected when programmed AutoCal test sequences are loaded into the instrument from an external source via the RS 232 interface For each device to be tested a series of pressure and or electrical way points are programmed into the instrument The operator carries out a test by connecting the device under test to the instrument a
169. the instrument over to expose the battery compartment located in the base refer to Figure 2 3 Remove the battery cover 2 by unscrewing the tamper proof screws 3 by means of the special key provided 1 Carefully remove the exhausted batteries and dispose of them in an approved manner Alkaline cells contain toxic materials NOTE All cells must be replaced at the same time Check that none of the batteries have leaked any electrolyte into the battery compartment Any electrolyte leakage must be cleaned up before new batteries are fitted Fit six D size alkaline batteries of the approved type as shown in Figure 2 3 observing correct polarity as indicated Refit the battery compartment cover 2 and tighten the two tamper proof screws 3 with the special key 1 Switch the instrument ON and check the battery status Refer to Section 2 1 3 page 2 4 K156 Issue No 1 2 Functional Description 27 1 3 1 Key 2 Battery Compartment Cover 3 Tamper Proof Captive Screws 4 Approved Type Alkaline Cells 6 off 5 Battery Compartment USE ONLY APPROVED TYPES OF CELL REFER TO SECTION 2 1 3 PAGE 2 5 Figure 2 3 Battery Removal amp Replacement K156 Issue No 1 2 8 DPI 605 IS User Manual 2 1 4 Communication Interface Connections CONNECTION AND USE OF THIS INTERFACE MUST BE SAFE AREA ONLY REFER TO THE CERTIFICATION SCHEDULE FOR CONDITIONS OF USE NO EXTERNAL C
170. the pressure keypad ern e Select the Safety function key F1 The current Safety Limits setting will now be indicated e g Safety Limit 14 45000 bar o Enter the required Safety Limit on the numeric keypad and press ENT K156 Issue No 1 4 28 DPI 605 IS User Manual Once set the Safety Limit is always active and will cause pump blocking to occur thereby preventing further system pressurisation vhen the Safety Limit threshold is reached A continuous audible alarm is also given To cancel the alarm and release pump blocking press the Exit Menu key Note that until the system pressure falls below the set Safety Limit pump blocking will be inhibited 4 6 2 Selection of Pressure Process Functions Five pressure process functions are provided on the instrument Tare Peak F S Filter and Flow Al functions are accessible from the Pressure Processing Selection menu Assuming the instrument to be switched on the menu is accessible by pressing the PROCESS key and appears as follows e g Pressure Processing Selection Tare Peak F S More Access to the Filter and Flow process functions is gained by pressing the More F4 key Note that if any of the following functions are enabled and the instrument is set to power up as last set up see Section 3 10 2 the functions will remain enabled when the instrument next powers up Tare The Tare function permits a programmable offset to be either subtracted from or ad
171. trument Calibration Pressure Calibration procedures must be carried out in a controlled environment e g Standards Laboratory To carry out a pressure calibration proceed as follows oe Switch the instrument ON setup Press the SET UP key and select Cal Test F4 from the e Defaults Set up menu Battery i eh o Enter P I N number and press ENT This will cause the a calibration adjustment menu to be displayed e g a e Test i e New Pin Within the calibration adjustment menu three options are Pressure available Electrical Ratio Calibration adjustment menu Pressure Electrical Ratio F1 F2 F3 Pressure F1 Electrical F2 and Ratio F3 options provide facilities for adjusting the calibration of all the measurement ranges within the instrument NOTE The instrument can be fitted with an internal Cal Link If this link is fitted the instrument s calibration is protected Subsequent selection of either Pressure F1 Electrical F2 or Ratio F3 will result in the display of a status message and access to that function will be denied e g Cal Disabled Please remove Cal Link Where fitted the Cal Link may be sealed by a Quality Assurance Seal The Pressure F1 option provides access to the calibration adjustment of the pressure ranges of the instrument The ranges are internal made up of Internal 1 used by the instrument to measure pressures in the range 2 to 20 bar and Int
172. ts File MEMORY LOAD TESTING AT DRUCK SN 12345 gt 1 Deleting Results Files and Test Programs MEMORY DELETE file name pin protection Files are deletes by issuing the above command If the incorrect pin protection number is sent the file is not deleted and an error is placed in the SCPI error buffer Files with no pin protection should be deleted with a pin protection number of 0 MEMORY DELETE TESTING AT DRUCK SN 12345 9999 MEMORY DELETE ALL This command should be used with caution since all files stored in the instrument Data Log AutoCal Test AutoCal results are deleted Directory listing MEMORY CATLOG ALL Sends a directory listing of all the files in the DPI 605 MEMORY CATLOG TEST Sends a directory listing of all the AutoCal test procedure files in the DPI 605 MEMORY CATLOG AUTOCAL Sends a directory listing of all the AutoCal test results files in the DPI 605 MEMORY CATLOG DATALOG Sends a directory listing of all the Data Log files in the DPI 605 The data comes back as DIR TESTING AT DRUCK SN 12345 TESTING AT DRUCK SN 12345 gt 1 MEM CAT ALL K156 Issue No 1 A AutoCal A 9 7 AUTOCAL COMMAND DEFINITIONS The commands detailed below are AutoCal commands They may be used in AutoCalTest Programs to make the instrument do specific things and also prompts the operator to carry out specific operations When a Test Program is executed on the instrument each individual comman
173. ue No 1 4 4 54 DPI 605 IS User Manual ET ON SATCH AUTO f LEAK TEST CAL ATEST DATA STORE RE LOG CALL The e g Free Blocks 9212 legend gives an indication of remaining memory space and the first five entries in the directory are displayed The Page Up and Page Down functions allocated to the F1 and F2 keys respectively provide a means of scrolling forward Page Down or back Page Up through the directory listing The Exit Menu key is used to return to the main AutoCal menu When first entering the AutoCal function it is good practice to interrogate the directory This will enable the operator to determine what file ID numbers have already been used since an attempt to use an existing file ID number to record an operation will result in the display of an error message File already exists The gt 1 symbol in the results directory indicates the result obtained from a first test A gt 2 symbol indicates the results of the last test on a device Delete Utility This AutoCal function enables files to be deleted from the AutoCal memory Selection of the AutoCal Delete function initially provides the option to delete files located in either the Tests directory or the Results directory The appropriate directory is selected by means of either the Tests F1 or Results F2 keys Selection of one of these directories produces the appropriate directory listing typical listings are shown below T
174. ue on the keypad followed by ENT o Enable the F S function by pressing the On F3 key Conversely disable the function by pressing the Off F4 key Filter The low pass filter function is selected as follows o Tare o Peak FS More o Flow On Off He HE Filter o More Select Process by pressing the PROCESS key located in the Pressure keypad Press the More F4 key followed by the Filter F1 key The pressure Filter menu will now be displayed e g Pressure Filter On Off K156 Issue No 1 4 Operation 4 31 4 7 Enable the Filter pressing the On F1 key AZ symbol will be displayed to show that the filter is selected e To disable the filter press the Off F2 key Flow The Flow function is selected as follows PROCESS e Select Process by pressing the PROCESS key located in Tare the Pressure keypad Peak gt FS More Press the More F4 key followed by the Flow F2 key Fiter The Pressure Flow menu will now be displayed e g Flow More Pressure Flow On Off On Off gt Enable the Flow function by pressing the On F1 key A symbol V will be displayed to show that Flow has been selected To disable the Flow function press the Off F2 key Generating a Vacuum not applicable to Indicator versions The vacuum generation controls of this version of the instrument are shown in Fig 4 9 and comprise the f
175. upper or lower case almost always preceded by a colon for a few special commands the preceding character isa Some commands may be ended with a question mark this is the query form of the command and instructs the instrument to return a value The returned value is always preceded by the return of the command string which caused it For example READ PRESSURE would return READ PRESS lt value gt It should be noted that the returned command string always contains all default commands and also that the returned commands are in short form see Section 3 of this Appendix Command Tree for an explanation of short form and default commands The returned message is always ended with carriage return and line feed characters Commands are executed immediately upon receipt of a line feed character ASCII code 10 Several commands are typically strung together to achieve a certain objective For example READ PRESSURE causes the current pressure reading to be returned by the instrument as seen above Note that no spaces are included anywhere in the command string K156 Issue No 1 B SCPI Communications Protocol B 5 COMMAND TREE The following command tree lists all the commands which the instrument understands in a structured way Commands shown in rounded boxes are those which have values associated with them even if the value is simply ON or OFF These commands can always be ended with a question mark making
176. urand for the electrical display window is selected mA EE np Selects mill ammeter to be displayed in the electrical window of the display Current input signals are applied between the I and COM terminals The current range is 55mA maximum The maximum range value is displayed on the instrument when this mode is selected All electrical processing e g Tare is cancelled if anew measurand for the electrical display window is selected Temp pearl M Used in conjunction with either an external optional PT100 or PT25 platinum resistance probe to read temperature Units of temperature are selectable F or C under the SET UP Default Units facility refer to Section 3 10 2 The display echoes the type of Temperature Probe currently selected Selection of Temperature Probe type is carried out under the Temp Probe option Section 3 10 2 All electrical processing e g Tare is cancelled if anew measurand for the electrical display window is selected Process r Electrical Input The electrical process key provides access to the following functions for all three Voltage Current and Temperature measurands K156 Issue No 1 EE w 3 14 DPI 605 IS User Manual 3 9 Electrical Input Key Functions Contd o Tare Electrical Input o Peak Electrical Input o FS Electrical Input o Filter Electrical Input Provides t
177. urrent devices o Current loop 4 20 mA pressure display systems e Pressure to pressure transducers o Pressure to logic switch tests o Analogue pressure gauges Direct temperature measurement optional probe oc Temperature range 55 C to 200 C e Voltage and current measurement Voltage zero to 50 V d c e Current zero to 55 mA d c Section 5 Applications gives details of instrument connections for typical applications K156 Issue No 1 1 1 3 Introduction 1 3 Instrument Specification Pressure Measurement Specification Operating Pressure Range 1 to 20 bar gauge 0 to 21 bar absolute with optional Barometric Reference Sensor Maximum Safe Working Pressure Calibrator 1 25 x F S Indicator 1 5 x F S up to 400 bar max Pressure Media Calibrator Compatible with most common non corrosive gases Indicator In accordance with transducer specification Response 2 readings per second nominal Non Linearity Hysteresis and Repeatability 0 025 of reading between 200 mbar and 20 bar 0 05 mbar below 200 mbar Negative Pressure 0 025 of reading between 1 bar to 200 mbar 0 05 mbar between 0 and 200 mbar Both Positive and Negative Pressure accuracies 1 LSD Accuracy Comprises Non Linearity Hysteresis and Repeatability as above plus 90 day stability 0 05 of reading between 200 mbar and 20 bar 0 1 mbar below 200 mbar Temperature Effects 1 bar to 20 bar gau
178. y component 135 C 40 C Ambient When using the instrument in a hazardous area ensure the conditions of use as detailed in the equipment Certification Schedule are strictly adhered to including REFER TO SCHEDULE FOR RESTRICTIONS ON INSTRUMENT EXTERNAL CONNECTION CONNECT RS232 INTERFACE IN SAFE AREAS ONLY ELECTROSTATIC RISK DO NOT CHARGE THE CASE BY RUBBING OR CLEANING WITH SOLVENTS USE ONLY THE SPECIFIED BATTERY TYPES CHANGE BATTERIES IN SAFE AREAS ONLY Pe BBE K156 Issue No 1 DPI 605 IS User Manual DEFINITIONS Explosive Atmosphere A mixture of flammable substance s in the form of a gas vapour or mist mixed with an oxidiser in proportions such that it can be exploded by excessive temperature arcs or sparking Hazardous Area An area where the presence or possible presence of an explosive atmosphere requires that special precautions are taken to avoid any condition that could ignite the hazard Safe Area An area where no explosion hazard exists at any time IMPORTANT THIS HANDBOOK IS WRITTEN TO SOFTWARE VERSION 3 XX ONLY The information in this publication includes operating details for software at Version 3 XX During the power up routine the instrument displays the software version number Subsequent changes to the software will be covered in a new issue of this publication K156 Issue No 1 Contents V 1 INTRODUCTION sa a an ernennen 1 1 1 1 G n ral inner ern ae nie 1
179. y pad The full alpha numeric text is added to the file by pressing the ENT key located on the numeric key pad Selection of a Data Log trigger mode A Data Log sequence may comprise a number of separate logging opera tions each of which is initiated by a trigger signal Two basic trigger levels are provided Periodic and Event Periodic The Periodic mode F1 is an internally generated mode which permits the Data Logger to be automatically triggered by internally generated timing pulses and termination of the logging sequence to be determined either by a programmable number of samples or at a programmable future time Stop Time Initially when Periodic F1 is selected the period between consecutive log pulses is requested as follows Enter Period Hrs Mins Secs O K156 Issue No 1 TES 3 24 DPI 605 IS User Manual 3 10 4 Data Log Contd Data entry is made via the numeric key pad followed by ENT Leading zeros need not be entered Following entry of the sampling period the stop event must be defined A choice of two options is provided Stop Time F1 and Samples F2 Stop Time When the Stop Time option is selected the instrument prompts for the entry of a time e g Stop Time Hrs Mins O The time is entered via the numeric key pad followed by ENT The instrument now prompts for a Data Log Start condition to be defined e g Timed Data Log Start Now Later Condition By selection o
180. y pad and press ENT Press the Accept key F1 The display briefly displays the following message e g Calculating Coefficients Please Wait before returning to the Pressure Cal Adjustment menu 6 3 2 Linearity Multiple Point Cal To carry out multiple point calibration routine for an external transducer proceed as follows o Select Linearity F1 from the External Pressure Transducer Cal menu oc Apply lowest pressure to the external transducer and in response to the prompt Applied Pressure 1 psi Clear Lin Enter the applied pressure as indicated by pressure standard on the numeric key pad followed by ENT o Press the Accept F1 key to accept the entered pressure o In response to the following prompt e g Another Point Yes No Select Yes NOTE A minimum of five points are required for a linearity calibration K156 Issue No 1 G Calibration 6 9 6 3 3 o Repeat the above procedure for a minimum of five pressures When the final pressure has been entered answer Mo F2 in response to the Another Point prompt Two messages will then briefly be displayed Transferring to EPROM Calculating Coefficients Please Wait On completion of the above the External Transducer is calibrated and can be selected for use from the External Transducer Menu Temperature Compensation To carry out a temperature compensation run or an external transducer proceed as follows NOTE A L
181. y pressing a key on the instrument The data transmitted as a result is ASCII text formatted to suit most printers The only exception to this is the screen print facility which uses graphics mode to suit the DP 605 optional printer and therefore may not suit all printers When the instrument is connected to a computer bi directional transfer of data can take place AutoCal Test Procedures AutoCal Results Files and Data Log Results Files may be down loaded to and uploaded from the instrument The instrument may also be controlled via the RS 232 port It can be instructed to take readings and measurement ranges can be selected for example In fact full remote control of the instrument is possible anything that can be done via the instrument s key pad can be done via the RS 232 port as well For this bi directional communication the instrument uses the SCPI Communica tions Protocol SCPI pronounced skippy stands for Standard Commands for Programmable Instrumentation As the name suggests it is a language for communication with clever instruments All instruments which adhere to the SCPI standard can be talked to with the same words These words are called SCPI Commands The commands understood by the DPI 605 are part sub set and part super set of those defined by the SCPI standard because the instrument does not have all the facilities which are catered for by SCPI but it does have some additional facilities are not In the fulln
182. y pressing the Results F2 key The electrical offset and gradient of the straight line are obtained by pressing the Details F1 key K156 Issue No 1 4 58 DPI 605 IS User Manual o To exit the Manual AutoCal mode press the Exit key F4 at the Analyse results prompt e g Analyse results BSL TSL ABS Exit To replay the results obtained refer to Section 4 14 3 4 13 3 Replay of AutoCal Log Files To replay an AutoCal file proceed as follows o Select Replay F2 from the AutoCal Menu AUTO CAL A directory showing the first page of Data Logged files is Test displayed e g Replay Directory AutoCal Results Free Blocks 9212 Delete Display TS150000000000000001 N1234543670111111112 gt 1 e Graph TS150000000000000002 N1234543670111111113 gt 1 Print TS150000000000000008 N1234543670111111114 gt 1 See TS150000000000000032 N1234543670111111115 gt 1 E Previous TS150000000000000033 N1234543670111111116 gt 1 Next Page Up Page Down To replay a Data Log file select the required file by means of the Page Up F1 Page Down F2 1 F3 or 4 F4 cursor keys and press the ENT key on the numeric keypad Four display modes are now provided as follows Select replay format Display Graph Print Upload K156 Issue No 1 4 Operation 4 59 Display Selection of the Display option F1 writes the data associated with the first location of the selected Auto Cal log file to

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