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pte-1 hand held calibrator operating manual

1. Hexa ASCII Decimal Binary decimal Character 0 00000000 00 NUL 1 00000001 01 SOH 2 00000010 02 SRX 3 00000011 03 ETX 4 00000100 04 EOT 5 00000101 05 ENQ 6 000001 10 06 ACK 7 00000111 07 BEL 8 00001000 08 BS 9 00001001 09 CD 10 00001010 0A LF 11 00001011 OB VT 12 00001100 0 13 00001101 OD CR 14 00001110 OE SO 15 00001111 OF SD 16 00010000 10 DLE 17 00010001 11 DCD 18 00010010 12 DC2 19 00010011 13 DC3 20 00010100 14 DC4 21 00010101 15 NAK 22 00010110 16 SYN 23 00010111 17 SRX 24 00011000 18 CAN 25 00011001 19 EM 26 00011010 1A SUB 27 00011011 1B ESC 28 00011100 FS 29 00011101 ID GS 30 00011110 5 31 00011111 115 32 00100000 20 SP 33 00100001 21 34 00100010 22 35 00100011 23 36 00100100 24 5 37 00100101 25 38 00100110 26 Et 39 00100111 27 40 00101000 28 41 00101001 29 42 00101010 43 00101011 2 44 00101100 2 i 45 00101101 2D 46 00101110 2E 47 00101111 2F 48 00110000 30 0 49 00110001 31 1 50 00110010 32 2 51 00110011 33 3 52 00110100 34 4 53 00110101 35 5 54 00110110 36 6 55 00110111 37 y sls Hexa ASCII Decimal Binary decimal Character 56 00111000 38 8 57 00111001 39 9 58 00111010 3A 59 00111011
2. 2 2 105 w 2 pressure modules installed Case Material High impact ABS Sensor Module Capacity 2 bays for GQS Quick Select sensor modules Display 2 line LCD 0 037 in height per line Can display simultaneous readings from 2 modules Electrical Connection Miniature recessed banana jacks one set of test leads provided with each base unit BASE UNIT OPERATING SPECIFICATIONS Operating Temperature Range Standard 32 to 120 F Optional 4 to 120 F Storage Temperature 49 to 158 F Update Rate 130 ms nominal with one sensor installed Resolution 0 002 of span 60 000 count max Warm Up 5 minutes for rated accuracy Damping Measurement Averaging Programmable averaging from zero through 16 consecutive readings Electrical Measurements 0 50 mA or 0 30 Input volts Accuracy 0 10 0 025 FS 0 30 0 10 FS 0 20mA 0 03 FS 0 50mA 0 05 FS Auto Ranging 10 30 Vdc and 20 50mA Temperature Effect Electrical Measurement 001 of Span per F over compensated range Serial Interface Type RS 232 Baud Rate 300 1200 2400 or 9600 selectable Field Calibration Both Quick Select pressure modules and base unit electronics can be calibrated in the field via prompted keypad commands Options Datalogging with Hi Lo Relay Feature Datalogging manually or automatically stores up to 715 mea sured values for upload to PC Includes upload utility software Hi Lo relay feature
3. Alarm Function Overview Optional Feature Alarm Set Up tee io etm DURER OPER RETE EUER Recertification of the Calibrator _ Calibration Recertification Required As Received Readings of Base Unit Electronics Adjustment Calibration Base Unit Electronics eese Recertification of Quick Select Pressure APPENDICES 5 Revision 4 6 3 2004 Section 1 0 Introduction Congratulations Your purchase of the Hand Held Cali brator HHC calibration system equips you to perform a wide variety of pressure and temperature measurements The general pressure and temperature measurement capabilities of the HHC are supplemented by application specific firmware as well as the availability of optional data logging capability The is a complete pressure calibration system providing interchangeable pressure ranges simultane ous measurement and display of two pressure ranges measurement and display of current and voltage The also provides the ability to perform high accuracy temperature measurement Conversion between tempera ture and pressure measurement can be done in a matter of seconds and requires no tools A sta
4. HEISE PTE 1 HAND HELD CALIBRATOR OPERATING MANUAL REVISION 4 6 3 2004 1 002 10052 11 00 1P6 00 7P 10 07 250 AMR Thank you for your purchase Please feel free to contact us if we may be of assistance in any way Should you require service for this instrument or wish to take advantage of our expert factory recalibration services please complete the material return form which can be printed directly from the service button on the Heise website Please return the instrument to Ashcroft Inc 250 East Main Street Stratford CT 06614 5145 Tel 203 378 8281 Fax 203 385 0402 For the latest return form and product information please visit our website at www heise com Table of Contents Section Description Page 1 0 utero e 4 1 3 Base Unit Overview ccs ier 4 1 4 Quick Select Module Overview 4 141 The GQS 1 Quick Select Pressure 5 1 4 2 The GQS 2 Quick Select Pressure Module 5 1 4 3 The GQS RT1 Quick Select RTD Temperature Interface Module 5 1 4 4 The GQS TC1 Quick Select Thermocouple Interface Module 6 2 0 Unpacking 6 2 1 Unpacking Product Upon Receipt ierit Peer eed erede nad 6 2 2 Storage isn A E
5. Step 6 Proceed to Section 18 2 for trip detect testing or to Section 18 3 for deadband testing Section 18 2 Test of Switch Trip Point Step 1 With the HHC on and reading pressure or tem perature press the trip detect key on the keypad TRIP DET The HHC will respond by displaying the following Step 2 Using the left right and up down arrow keys selected the word manual will flash Step 3 With the word manual flashing press the enter key ENT Step 4 Gradually increase the pressure vacuum or temperature until the display of the HHC indicates that a Revision 4 6 3 2004 change of state has been detected When switch has tripped the HHC will display where Eng Unit is the pressure or temperature engineering unit in use Tripped indicates the pressure switch has tripped 12345 represents the pressure or temperature at which the switch tripped is voltage value Step 5 To perform additional trip tests press any key and the trip detect system will be rearmed Step 6 To discontinue the switch testing process press the trip detect key TRIP DET The will respond by displaying Step 7 Using the left right and up down arrow keys select the word disable in the menu selection When selected the word disable will flash Step 8 With the word disable flashing press the enter key ENT The switch test operation has now been terminated Section 18 3 Switch D
6. irr rrr ete pene derer tee Accuracy of Dual Module Measurements eee Setting Up Dual Module Differential Pressure Measurement Setting Up a Dual Module Summation Pressure Measurement Data Logging Function Optional see Sequential Data Logging Function Optional Setting Up the Data Logging Function Labeling Function Standard Data Logging Mode Automatic Data Logging Standard Data Logging Mode Manual Data Logging Standard Data Logging Mode Review of Stored Data On Instrument Display Standard Data Logging Erasing of Selected Stored Data Standard Data Logging Mode Erasing Stored Data Standard Data Logging Mode Certification Generation Enhanced Data Logging Mode Set Up and Use of Certification Generation Data Logging Mode HHC System Set Up for Uploading Stored Data Into an IBM Compatible PC Installing and Operating Upload Software sess Battery Back Up Replacement o net rt ternera Event Timer cereo retenti tI re PH Event Inner Set Up eee Data Logging Set Up for Operation with the Event Timer
7. Step 9 To activate the dual sensor dp mode of opera Revision 4 6 3 2004 46 tion press the port select key one time after the set up has been complete The calibrator will display the fol lowing text for a calibrator displaying measurement values in the psi engineering unit When the dual module summation firmware is active the following measurement sequence will result from press ing the PORT SELECT key First press of the port select key Second press of the port select key Third press of the port select key select key Fourth press of the port The Sixth press of the port select key will return to the first dp screen as shown below and allow repeating the choice of available port select configurations Notes on interpreting the displayed measurement values 1 On a display set up with an L R indication on one side of the display and a straight engineering unit des ignation on the other side of the display the value under the L R designation is the resulting measurement for the summation product of the left Quick Select measure ment added tothe measurement value of the right Quick Select module The value on the opposite side of the dis play under the engineering unit without the L R prefix represents the pressure measurement from the Quick Select pressure module installed in the corresponding side of the calibrator By using the port select function it 15 possible to read the summ
8. right measure ment value Step 2 With modules installed turn calibrator on by pressing the on off key ON OFF Step 3 With the calibrator on and displaying pressure measurement data from the two installed Quick Select modules press the Set Up key SET UP Step 4 Using the up down and left right arrow keys locate the section of the set up menu that includes dp measurement set up This menu will appear on the cali brator screen as follows Step 5 Use the arrow keys to highlight the text Meas When highlighted the text will flash on the dis play Step6 With the text dp Meas flashing press the enter key ENT The calibrator will respond with the following display Step 7 perform dual module differential pressure measurement select L R to exit this dp set up and return to basic pressure measurement select NONE To proceed use the arrow keys to select the text L R Step 8 With the text L R flashing press the enter key ENT After pressing the enter key the calibrator will return to basic pressure measurement Step 9 To activate the dual sensor dp mode of opera tion press the port select key one time after the set up has been complete The calibrator will display the fol lowing text for a calibrator displaying measurement values in the psi engineering unit 45 When dual sensor differential firmware is active following measu
9. 117 01110101 75 u 173 10101101 AD 118 01110110 76 174 10101110 119 01110111 77 w 175 10101111 AF 120 01111000 78 X 121 01111001 79 y 122 01111010 7 123 01111011 7B 124 01111100 7 125 01111101 7 126 01111110 7E 127 01111111 DEL 128 10000000 80 129 10000001 8l 130 10000010 82 131 10000011 83 132 10000100 84 133 10000101 85 134 10000110 86 135 10000111 87 136 10001000 88 137 10001001 89 138 10001010 139 10001011 8B 140 10001100 8C 141 10001101 8D 142 10001110 8E 143 10001111 8F 144 10010000 90 145 10010001 91 146 10010010 92 147 10010011 93 148 10010100 94 149 10010101 95 150 10010110 96 151 10010111 97 152 10011000 98 153 10011001 99 154 10011010 9A 155 10011011 9B 156 10011100 9C 157 10011101 9D 158 10011110 9E 159 10011111 160 10100000 161 10100001 1 162 10100010 2 163 10100011 164 10100100 4 165 10100101 5 166 10100110 167 10100111 7 Revision 4 6 3 2004 72 ASCII Hexa ASCII Decimal Binary decimal Character Decimal Binary decimal Character 176 10110000 BO 223 11011111 DF 177 10110001 Bl 224 11100000 EO 178 10110010 B2 225 11100001 1 179 10110011 B3 226 11100010 E2 180 10110100 B4 227 11100011 181 10110101 5 228 11100100 EA 182 10
10. 8 PM MM minutes from 0 to 60 SS seconds from 0 to 60 Setting the current date and time is accomplished by using the keys with the corresponding numerical values From left to right enter the appropriate number in each of the field positions using the numeral keys Once a given field has the appropriate number entered the HHC will automatically index to the next position for entry When completed the date time information should look as follows For a date time of October 10 34 day 03 1996 96 at a time of 11 15 AM 1115 and 0 seconds 00 When the correct time date information has been entered and appears on the display press the enter key to store the time date information in memory ENT Time date information is stored in battery backed up Random Access Memory RAM This information should only need to be changed or reentered when a time change has occurred the HHC is to be used in a dif ferent time zone than the one in which it was in during initial setup or when the lithium battery used to back up the RAM needs replacement every 1 2 years depending on the environmental conditions under which the HHC is used RAM memory is only supplied if unit is pur chased with data logging option Time date information is not maintained in HHC units without data log option Section 3 4 5 Input of Owner Operator Information The HHC has the ability to display on power up the name of the individual department
11. For this example the pressure measurement unit of mSW meters of sea water will be used as the desired user engineering unit To set the user engineering unit to provide pressure measurement data in mSW follow Revision 4 6 3 2004 steps below Step 1 With the HHC on and reading pressure press the key designated SET UP SET UP Step 2 Using the arrow keys select the User engi neering unit option displayed as UserEng The text UserEng will flash when selected Step 3 With the text User Eng flashing press the enter key ENT Step 4 After pressing the enter key the HHC will respond by displaying Step 5 Enter the conversion factor required to convert from psi to the engineering unit desired For conversion from psi to mSW the conversion factor is 0 684482 Enter 6 digits to provide the required resolution to sup port the accuracy of the HHC A complete list of conver sion factors is provided in Appendix A Use the number keys to enter the desired conversion factor entering the required factor from left to right For our example of mSW the conversion factor is 0 684482 and the display should read If an incorrect conversion factor is entered press the clear entry key designated CE to re initiate the entry process for the correct factor Step 6 When the correct numerical value appears on the display press the enter key ENT After entering the conversion factor the HHC will respond by displa
12. J Iron amp Copper Nickel Constantan K Nickel Chromium amp Nickel Aluminum T Copper amp Copper Nickel Constantan E Nickel Chromium amp Copper Nickel Constantan R Platinum 13 Rhodium amp Platinum S Platinum 10 Rhodium amp Platinum B Platinum 30 Rhodium amp Platinum 696 Rhodium N Nickel Chromium Silicon amp Nickel Silicon Magnesium Revision 4 6 3 2004 Section 17 1 Thermocouple Measurement Set Up Step 1 To begin measurement with a thermocouple first attatch the thermocouple to a male miniature ther mocouple connector Please note that connectors are specifically manufactured for each thermocouple type and will be marked accordingly Failure to use the prop erly mated connector will result in additional inaccuarcy Step2 Turn the calibrator off Install the thermo couple interface module into either of the modules bays in the top of the calibrator Now install the thermo couple into the interface by inserting the male blades of the miniature connector into the slots in the receptacle located on the top of the thermocouple interface module Step 3 Turn the base unit on When the display has completed the power up cycle press the set up key SET UP Using the arrow keys select the words Module press the enter key ENT If two thermocouple interface modules have been installed the calibrator will require a selection as to which side left or right the curren
13. Pressing the Port Select key a third time will result in the display returning to a dual pressure readout mode As seen below If the HHC has a temperature measurement interface module installed the same type of sequence would be followed For example if the HHC had an RTD interface module installed in the left module bay the following sequence would be observed as a result of pressing the PORT SEL key Pressing the Port Select key once will result in the fol lowing display change Pressing the Port Select key a second time will result in the following display change Pressing the Port Select key a third time will result in Revision 4 6 3 2004 the display returning to readout mode featuring measurement data from both of the installed modules As seen below See 8 4 for display of pressure in two different engineer ing units See Section 7 0 for display of current and voltage mea surement data Section 6 0 2 This section applies to pressure measurement only The zero function does not apply to the function of tempera ture measurement The tare capability will function in conjunction with temperature measurement modules This allows for the subtracting of a displayed or operator entered temperature value from the displayed tempera ture measurement data See Section 9 0 for information on the tare function Pressing the zero key when two Quick Select pressure mod ules are
14. Revision 4 6 3 2004 Step2 To exit hold function press any key Note While in the hold mode if the RS232 interface is enabled the HHC will continue to transmit the displayed values Section 11 0 Minimum Maximum Value Tracking The HHC monitors and stores in memory both the minimum and maximum pressure or temperature values measured The following procedure will allow review of these values Step 1 recall the minimum and maximum values simply press the key labeled MIN MAX The HHC will respond by displaying where maximum values are displayed on the top line and 12345 represents the maximum value s measured Minimum values are displayed on the bottom line and 12345 represents the minimum value s measured If two Quick Select modules are installed the min max function recalls and displays the minimum and maxi mum values for both modules simultaneously Step 2 To clear the stored minimum and maximum value press the clear entry key CE Pressing any key other than the CE key will maintain the stored values in memory Pressing any key on the keypad will return the HHC to normal pressure measurement activities Section 12 0 Damping Damping provides the ability to stabilize the displayed or transmitted pressure value by minimizing the effects of low level transients and electronic instability Damp ing is most commonly used with Quick Select pressure modules to overcome the effects of pre
15. The calibrator will respond by displaying the following The maximum resolution that the combination of the Calibrator base unit RTD interface module and probe can support can be determined as follows The resolution of the RTD module is 0 00146 of the full scale resistance of the reference resistor used in the module The GQS RT1 incorporates 400 ohm refer ence resistor and the GQS RT2 incorporates a 4000 ohm reference resistor Using the GQS RTI as the example the maximum reso lution is 0 001 of 400 ohms 0 00001 x 400 0 004 ohms For a PT 100 the temperature resolution can be deter mined as follows 0 004 ohms 100 ohms x 0 00385 ohms degree 0 008 degrees C approx 0 005 degrees F Therefore rounding to the next highest digit results in a resolution of 0 01 degrees C The resolution supported for the factory programmed RTDs can be found below Using the RT 1 Probe Type Resolution Pt 100 0 01 degrees C or F 385 amp 392 Ni 120 0 1 degrees C or F Cu 10 0 1 degrees C or F Using the RT 2 Resolution 1 0 degrees C or F Probe Type Pt 1000 Resolution must be selected in conjunction with the full scale ohms output for the RTD probe to be used Step 14 Select the desired resolution using the left right arrow keys In this case since we are using the Pt100 RTD with a maximum resolution of 0 01 degrees C the 0 01 option has been selected 35 Step 15 With the desired resolution selec
16. display is limited to 16 characters line and cannot display both the L R anda XXXXXX engineering unit label Revision 4 6 3 2004 Section 21 3 Setting Up Dual Module Summation Pressure Measurement Step 1 With the calibrator off install the two Quick Select pressure modules in the calibrator As this is a summation process the modules may be in either sensor bay Step 2 With the modules installed turn the calibrator on by pressing the on off key ON OFF Step 3 With the calibrator on and displaying pressure measurement data from the two installed Quick Select modules press the Set Up key SET UP Step 4 Using the up down and left right arrow keys locate the section of the set up menu that includes dp measurement set up This menu will appear on the cali brator screen as follows Step 5 Use the arrow keys to highlight the text dp Meas When highlighted the text will flash on the dis play Step 6 With the text dp Meas flashing press the enter key ENT The calibrator will respond with the following Step 7 To perform pressure measurement using the dual sensor summation mode select L R to exit this dp set up and return to basic pressure measurement select NONE To proceed with use the arrow keys to select the text L R Step8 With the text L R flashing press the enter key ENT After pressing the enter key the calibrator will return to basic pressure measurement
17. in the right module bay from the measured value of the Quick Select value in the left module bay This optional firmware allows for the following The ability to subtract the measured value from the left module of the measured value derived from the right module allows for simplified measurement of what are commonly referred to as high line or elevated static differential pressures A complete description of this Revision 4 6 3 2004 A4 capability is provided in Section 21 2 entitled Dual Sensor Differential Pressure Measurement 2 The ability to add the measured values of the two installed Quick Select pressure module allows for the addition of a measured barometric pressure from an absolute pressure module to the measured pressure from a gauge or differential pressure This capability can come in handy and save money by allowing the use of gauge measurement Quick Select pressure modules for absolute pressure measurement activities Section 21 1 Accuracy Dual Module Measurements The accuracy of measurements made using the differ ence or sum of 2 modules is a function of the full scale range of the Quick Select pressure modules used and in the case of differential pressure measurements the magnitude of the dp range For dual sensor summation measurements The worst case inaccuracy would be the sum of the inaccuracies of the two Quick Select modules used for the measurement For example if the measurement is m
18. selected value from the displayed pres sure measurement value for one or two Quick Select pressure modules See Section 9 0 for details Provides ability to measure the flow of a gas in terms of velocity or volume See Section 14 0 for details Allows testing for leaks in terms of pressure decay over time or in terms of leak rate See Section 15 0 for details Provides set up capability for manual or OPTIONA L automated data log ging SeeSection Designation Function DATA STORE Provides ability to store measured pressure or temperature values See Section 22 0 for details HOLD Freezes the displayed pressure and electrical measurements See Section 10 0 for details Moves cursor up TRIP Provides access to pressure DETECT switch testing firmware See Section 18 0 for details Moves cursor to left DAMP Activates or disables dampused to smooth displayed pressure measure ment data from the effects of low level pressure transients See Section 12 0 for details Moves cursor to the right CE Clears previous entry Changes electronic measurement display from mA to V or V to mA and can also be used to deactivate either side of the display See Section 7 0 for details V Moves cursor down 5 0 Converts display from pressure units to of f s See Section 13 0 for details ENT Enters input data Notes on key functions These functions require data input throu
19. CertGen will be flashing indicating that pressing the enter key will activate the CertGen data logging process Selecting and entering the option will return the calibrator to standard measurement activities Selecting the text Erase will allow deletion of any previous data logged information The Erase selection deletes all data logged information including any infor mation stored from either Std or CertGen operating modes If Erase is selected the HHC will respond by displaying Selecting Cancel will result in the HHC reverting to basic measurement activities Selecting Erase will result in the deletion of ALL stored data logging information Step 3 Using arrow keys highlight text CertGen to proceed with the certification generation process Step 4 With the text CertGen flashing on the display press the enter key ENT The HHC will respond by displaying the following This display provides an indication of the approximate data logging memory available for storage of additional measurement and calibration data The number of actual points that may be stored will vary based on the length of tag names assigned and whether or not the ambient temperature logging option has been exercised The percent indication is the percent of data logging memory used As data is added to the data log memory during the data acquisition process the percent level w
20. ENT Automatic time interval based data logging has now been terminated Section 22 5 Manual Data Logging Standard 49 Data Logging Mode Follow the procedure below to conduct manual operator controlled data logging Step 1 With the HHC system on and reading pressure press the data log key DATA LOG The HHC system will respond by displaying THE LAST DATA LOG MENU SCREEN USED Step 2 Using the up down and right left arrows browse through the data log menu and locate the word Manual The menu line with the word Manual appears as To initiate manual data logging select the word Manual using the arrow keys When selected the word Manual will flash on the display Step 3 With the word Manual flashing press the enter key ENT The HHC system will respond by displaying Step 4 Using the arrow key select the desired Quick Select modules to be monitored In this example we have opted to log the output from both Quick Select pressure modules Step 5 With the Quick Select module s to be monitored and logged selected and flashing press the enter key ENT The HHC system will respond by displaying Note If data storage is done with the time date stamp option activated the HHC system can store 387 sets of pressure measurements If data storage is done without the time date stamp option the HHC system can store 714 sets of pressure measurements Sets of pressure
21. HHC is not equipped with a temperature module the temperature can be entered via the numeral keys on the keypad With manual temperature entry completed the display will look as follows for an ambient temperature of 73 4 degrees Fahrenheit Step 26 With the desired temperature value displayed press the enter key ENT Using the arrow keys select the desired course of action Select None if no action is required and the device under test 15 performing satisfactorily Recal If adjustments are to be made to the device under test Repl If it has been determined that the tested device must be taken off line and replaced The selected entry will become part of the stored data for the calibration being done against the previously entered tag name Step 27 With the desired selection highlighted press the enter key ENT After completion the HHC will once again display the memory available summarization screen as follows This display provides an indication of the approximate data logging memory available for storage of additional measurement and calibration data Step 28 Press any key to return to the first CertGen Screen as follows New Tag Previous Tag Highlighting and selecting New will result in initiating a new calibration certification process will allow the review of data previ ously taken for specific tag names Previous Tag Press the clear entry key to return to standard
22. HHC mea surement and test activities CE Section 24 0 System Set Up for Uploading Stored Data Into an 57 Compatible PC The following steps will allow you to upload stored data to an IBM compatible PC Step 1 Turn the power off on the base unit Step 2 Connect a 9 pin RS232 cable to the HHC system and to a serial port on the PC Step 3 Turn the power to the base unit on and with the HHC system on and reading pressure press the setup key SET UP Step 4 Using the arrow keys locate and select the text RS232 When selected the text RS232 will flash Step 5 With the text RS232 flashing press the enter key ENT The HHC system will respond by displaying Step 6 Using the arrow keys select the word Enable When selected the word Enable will flash Step 7 With the word Enable flashing press the enter key ENT The HHC system will respond by displaying Step 8 Using the left right arrow keys select the desired baud rate When selected the baud rate will flash In the above example 9600 baud has been selected Revision 4 6 3 2004 Step 9 With desired baud rate flashing press enter key ENT The HHC system will respond by displaying Step 10 In order to use the upload software provided with the HHC system use the arrow keys to select the text ISO1745 When selected the text ISO1745 will flash Step 11 With the text 1501745 flashing press the enter key EN
23. Install new batteries as outlined in the base unit start up section of this manual Section 3 1 Step2 the HHC on Step 3 With the HHC operating and displaying pres sure press the battery check key designated BAT CK BAT CK The will respond by displaying Note Installation of two new 9 Vdc alkaline batteries will produce an initial voltage measurement of 9 0 9 5 Volts on the calibrator If the value measured is signifi cantly below this level it is likely that the batteries have degraded in storage and that they will provide less than the 30 hours of operation expected from a set of fresh fully charged batteries Step 4 Use the right arrow key to restore the bar graph to the full scale The percentage value displayed will reflect the adjustments made to the bar graph The number of highlighted segments in the bar graph will automatically reduce as the remaining battery life is reduced through the use of the HHC Important Note It is recommended that batteries be re placed when the low voltage icon appears on the instru the low battery icon appears is approximately 1 hour Batteries must be changed in a non hazardous environ ment for all HHC units Section 21 0 Dual Sensor Functions The calibrator is equipped with firmware that can auto matically add the measured pressure values from two installed Quick Select pressure modules or to subtract the value measured by the Quick Select module installed
24. OR DO UHR e ipee 23 Engineering Unit Selection for Flow Velocity 24 Blow Volume Meastirement 24 Engineering Unit Selection for Flow Volume 25 Simultaneous Display of Two Flow Measurements in Independent Engineering Units 25 Simultaneous Display of Flow Velocity or Volume with a Pressure Measurement 26 Simultaneous Display of Flow Velocity or Volume with a Temperature Measurement 27 Simultaneous Display of Flow Volume and Flow Velocity eee 27 Simultaneous Display of Flow Velocity or Volume and An Electrical Output Measurement censet te 28 Leak Detection Function eet ashe Aue in Die de usen 29 Leak Rate Punction Set Up cep HI HRIEDO det 20 Pressure Decay Function Set teta eno tete di te dk si 30 Sensor Selection for Performing Leak Rate or Pressure Decay Tests 30 Performing Leak Rate or Pressure Decay 30 Temperature Measurement Using RTD Probes Setting Up the Calibrator for Temperature Measurement with an RTD Probe 31 Calibrating and Programming of the RTD Interface and 33 Temperature Measurement with Thermocouple Detector 33 Setting Up Calibrator for Use with Thermocouple Detector es
25. Revision 4 6 3 2004 Section 3 0 System Start Up General Instructions The HHC can perform a wide variety of simple and complex temperature and pressure based measurement test and calibration operations Due to the menu driven set up procedures the system can be quickly and easily configured for most any of its measurement functions By following the steps in this section you can be ready to use your HHC to perform basic pressure and tempera ture measurement functions in a matter of minutes Section 3 1 Battery Installation Step 1 To gain access to the battery compartment remove the bottom end of the strap assembly by detaching the Velcro connection and pulling the bottom end of the strap from the retaining pin in the bottom of the case of the base unit Step 2 Open the battery compartment by sliding the battery enclosure cover out of the compartment opening To do this press down on the circular ribbed indentation on the battery cover while pushing the enclosure cover outward with pressure on the two standoffs located near the pin used to retain the strap on the base unit Step 3 Note the polarity information for installation of the two 9 volt alkaline batteries as outlined on the inside of the battery enclosure Step 4 Locate the two 9 volt batteries and the foam retaining spacer provided in a small plastic bag Install these batteries as shown on the diagram in the battery enclosure The HHC will operate for approximate
26. Select modules available in order to provide support for the most common RTD resistance levels The capabilities of the modules are summarized below GQS RT1 Quick Select Module Pt 100 385 amp 392 200 to 550 C 0 15 C 550 to 850 C 0 2 C Ni 120 80 to 260 C 0 1 C Cu 10 70 to 150 0 6 1 0 0190 reading 0 02 ohms GQS RT2 Quick Select Module Pt 1000 184 to 2759 0 15 Ohms 0 0146 reading 0 2 ohms Engineering Units Fahrenheit Celsius Kelvin Rankine or ohms Ohms Measurement Range 5 module 0 400 ohms GQS RT2 module 0 4000 ohms The interface module incorporates a Switchcraft TA4M type connector and requires an RTD with the appropriate Switchcraft TA4F meeting connector The connector is available through the supplier of your calibrator Section 16 1 Setting Up the Calibrator for 33 RTD Temperature Measurement Step 1 With the instrument off install the appropriate GQS RT Quick Select RTD interface module Instruc tions for installation of a Quick Select module Step 2 Connect the desired RTD probe to the Switch craft connector on the module Step 3 Turn the calibrator on by pressing the On Off key Revision 4 6 3 2004 ON OFF Step 4 access the temperature setup menu press the Set up key SET UP Step 5 Use the downward pointing arrow to access the following selection screen dp Meas is an optional feature that allow
27. Step 8 Using the number keys enter the full scale output of the device being calibrated For a 0 10 Vdc output device the display will look as follows Step 9 With the desired full scale output displayed press the enter key ENT The will respond by displaying the following Using the left right arrow keys select the appropriate device type where VP isa current to pressure device is a pressure or temperature to current device is a pressure to pressure device P E is a pressure or temperature to voltage device In this case we are testing a 0 100 inH20 range trans ducer that produces a 0 10 Vdc output from zero to FS Therefore the appropriate selection is P I and the display will look as follows Step 10 With the desired device type flashing press the enter key ENT At this time the HHC will return to basic measurement activities Section 13 2 Use of the Percent Function Note The HHC must be set up so that the desired Quick Select module is active and so that the desired electronic measurement is displayed prior to entering the mode Consult Sections 5 0 Port Select and 7 0 Current amp Volt age Measurements for setup details Step 1 With the percent function set up press the key on the keypad of the HHC to activate the percent mode Step 2 Connect the output lines from device under test to the miniature banana jack inputs on the front of the HHC U
28. already flashing There fore press the enter key to commence the electrical calibration ENT The calibrator will respond by displaying Step 10 Select the text Calibration When selected the word calibrate will flash on the display of the calibrator Step 11 With the text Calibrate flashing press the enter key ENT Step 12 Using the precision voltage source apply 1 00000 volt 50 microvolts to Module Bay 1 To apply the 1 Vdc signal to the calibrator connect the precision voltage generator so that the positive line is connected to Pin 7 and the ground is connected to Pin 6 These pins are located in the connector in Module Bay 1 as shown below 1 6 7 If the voltage standard is to a level in excess of the recommended calibration input or is connected to incor rect pins or in contact with pins adjacent to the specified input pins during the calibration process the base unit electronics may be damaged Use extreme caution when connecting test leads and applying test voltage inputs The Model CQS Calibration Quick Select module is available to simplify connection of the voltage standard to the base unit This module provides banana jack connections for the input of the voltage standard to the calibrator base unit Step 13 The calibrator will display the following With 1 00000 volt 50 microvolts applied
29. and Temperature Switches The following procedure outlines the set up require ments for the test of pressure and temperature switches Step 1 With the HHC and reading pressure or temperature in accordance with the type of switch to be tested press the Port Select key designated PORT SEL the required number of times to leave activated the Quick Select module being used for the test function and 27 deactivate convert display to mA or Volts the other side of the display PORT SEL Step 2 Press the mA V key as required to change electrical measurement parameter to that to be used for the switch test Switch to Volts if the change of state will be greater than 2 Volts switch to mA if the change of state will be greater than 2 mA mA V Step 3 Connect the switch electronics with a current or voltage source as required to provide the required greater than 2 Vdc or greater than 2 mA change in state Be certain that the change in state to be generated cor responds to the electrical measurement mA or V set up on the display of the HHC Step 4 Connect the output signal of the switch to the miniature banana jacks on the front of the HHC as out lined below For voltage volts V jack and common COM For current milliamps mA jack and common Step 5 Connect the switch to a controlled pressure vacuum source to generate the required level of pressure or vacuum to trip the switch
30. appears Actual battery life remaining will vary based on tasks being performed and ambient oper ating temperature Section 3 4 4 Programming Date amp Time Information If the unit does not have the Data Logging option skip this section The date time function supports date time recording capability that can be used in association with the Data Log option Note HHC units without the Data Logging option have no requirement for the date time tracking and will not keep track of the date and time when powered down For various application oriented functions the use of a real time clock will be required Setting the real time clock is a simple process and should be done when the HHC is received The real time clock may be set by following the steps below Step 1 With the HHC on and reading pressure press the SET UP key SET UP Step 2 Using arrow keys move through the menu selections and select DateTime on the LCD display Revision 4 6 3 2004 J2 DateTime will flash on the display when selected Step 3 With the words DateTime flashing press the enter key ENT This will activate the date time setup screen that looks as follows where YY the last 2 digits of the current year MM the month 01 for Jan through 12 for Dec DD the day of the month 01 31 depending on day and month HH the current hour using military time where 0800 8 00 AM 1200 noon 1500 3 PM 2000
31. at any time by pressing the TARE key If the is being used with two Quick Select modules and only one module has a nonzero tare value the display will only flash on the side that corresponds to the Quick Select module with the nonzero tare value Step 6 To exit the tare mode follow the procedures out lined in steps 1 through 5 and at the tare value prompt enter zero 0 When the tare values for both modules have been reset to zero tare mode operation will be dis continued and the display will stop flashing Section 10 0 Hold Function The hold function provides the ability to freeze the dis played pressure flow or electrical measurement values In addition pressing the hold key will result in an H appearing in the RS232 output data stream and will also result in a flashing H appearing on the left side of the top line of the instrument display The RS232 output will look as follows for a dual sensor measurement Normal Operation 1 2345 inH20 41 2345 inH2O Left Min 0 00000 Max 41 2345 Right Min 40 0000 Max 1 2345 With Hold Function Invoked 11 2345 inH2O 1 2345 inH2O Left Min Max Right Min Max Section 10 1 Using the Hold Function Step 1 To invoke the hold function press the hold key HOLD The HHC will respond by freezing the displayed values and adding a flashing H that will appear in the left most position on the top line of the display
32. continuation of the CertGen process Redo Provides the ability to discard all the Found data taken under the tag name being tested Prior to deleting the data the operator will be prompted by the query Selecting yes will result in the deletion of the just taken as found data Step 13 After selecting Done the HHC will offer the opportunity to enter the ambient environmental tem perature at the time the calibration is being done This is accomplished by the display of the following To skip the act of logging the ambient temperature value select the text Skip and press the enter key ENT To capture the ambient temperature and make it part of the calibration record use the arrow keys to select the text Enter Step 14 To proceed with the entry recording of the ambient temperature value with the text Entry flashing press the enter key ENT s Step 15 Note If the HHC has an GQS RT or TC temperature module and the probe is installed it will automatically offer the opportunity to store the measured tempera ture value If a different value is to be entered or if the HHC is not equipped with a temperature module the temperature can be entered via the numeral keys on the keypad With manual temperature entry completed the display will look as follows for an ambient temperature of 73 4 degrees Fahrenheit Step 16 With the desired temperature value displayed press the en
33. date entered and displayed press the enter key ENT Step 40 Turn off the calibrator and install the desired Quick Select module Step 41 Turn on the calibrator to resume general pres sure measurement activities Revision 4 6 3 2004 CONVERSION FACTORS FOR UNITS OF PRESSURE APPENDIX A PRESSURE CONVERSION FACTORS 9177201 9 6 2 09 ete 0r 067201 05 00 0620014 605660 08 0017 1877005 960971 19 095 8061800 BOELE 199060 640752 006471 28021 869616 00 0 100200 20202010 20 06 0 095 01 201 80 6809 2 968092 GGG 0 8061645 5 980 0062014 919 168660 1487562 198862 168662 901760 095 uj 019616 2607086 0004 69682 6GG GE 898726 768 81001 5990786 5709086 2081960 9990860 599086 662071 ua By 9667600 01761607 260686 696820 898220 80071 9990860 5990786 2806 6990876 999086 6620 06011 18821 JILEGHEO O 9120776 00752 lere GLOEL EGS HE 6698868 6898866 1276200 6 98 0 0 6 98 7911670 2 0 9626107 0 960129 1969861 1969614 16680 0 89 029890 20666170 eceee lL 896661070 209 puw 19960 6814760 129971 50700070 52706 68018870 086722 08706 896862 8975862 0 99620 0 892862070 8968762 90 26 70 2 02 OHY 2 ur z6ec z p98pz00 0 09
34. displaying After completion of the adjustments for the 30 0000 volt input the calibrator will display Step 18 Using a precision current generator apply a 20 0000 mA x5 microamps input to the mA jacks Use the COM and mA jacks on the calibrator keypad Step 19 When the proper current is being applied press the enter key ENT The calibrator will respond by displaying After completion of the 20 mA recertification the cali brator will display Revision 4 6 3 2004 Step 20 Using the left right arrow keys select Save to write the new data to the EEPROM calibration storage To discard the electrical readings select Cancel SESWARNING Selecting and entering the word Save will overwrite the calibration data previously stored in EEPROM memory Previously stored calibration data will be per manently destroyed Step 21 With the desired selection flashing Save or Cancel press the enter key ENT Step 22 If cancel is selected the calibrator will exit the calibration mode If save is selected the calibrator will prompt you to enter the date of the new calibration as follows Step 23 Using the number keys enter the current date such as For March 03 eleventh 11 1996 Step 24 With the desired date entered and displayed press the enter key ENT Step 25 Turn off the calibrator and install the desired Quick Select module Step 26 Turn on the calibrator to resume general p
35. installed and displayed will simultaneously zero both pressure modules In addition each module can be zeroed independently as outlined in the following section It is recommended that the instrument be zeroed prior to use or calibration Section 6 1 Zeroing One of Two Installed Quick Select Pressure Modules If zeroing one of two installed modules is desired the following process should be followed In this example we will assume that the left pressure module is to be zeroed and the right pressure module is to be unchanged Step 1 Press the port select the number of times required one or two to deactivate the display of pres sure on the side that you wish not to re zero PORT SEL When set up in accordance with the requirements of this example the HHC will have the following information on the display Step 2 With the pressure display deactivated for the side that is not to be zeroed press the zero key ZERO The HHC will respond by displaying Revision 4 6 3 2004 16 Step 3 resume display of pressure measurement data for the pressure module not zeroed press the port select key the required number of times one or two to restore the dual pressure display When complete the HHC will display Normal pressure measurement activity can now be resumed Section 7 0 Measurements As outlined in the previous section the port select P
36. key and the trip detect system will be rearmed Step 9 To discontinue switch testing press the trip detect key TRIP DET The will respond by displaying Step 10 Using the left right and up down arrow keys select the word disable in the menu selection When selected the word disable will flash Step 11 With word Disable flashing press enter key ENT The switch deadband test operation has now been termi nated Section 19 0 RS232 Interface General Information To simplify the interface of the HHC with your com puter recorder data acquisition hardware or dumb terminal two standard operating modes for the RS232 interface are available A third RS232 operating mode 1501745 is included on the menu options This mode is only used in uploading data from the optional data logging memory and in factory calibration set up and repair activities To configure the RS232 interface on the HHC for the requirements of your input device first determine the interface requirements of the device Then using the RS232 setup feature configure the RS232 interface on the HHC following the steps below Pin out information follows A standard RS232 cable to connect the calibrator to a 9 pin serial port on a computer is available from your calibrator supplier An adaptor to connect the calibrator to a 25 pin serial connection on a computer is also available The RS232 connector is located above the AC adapter in
37. key pad ON OFF During the start up process the HHC will display the fol lowing information First Screen where xx xx is a numerical value representing the firmware revision level installed in the base unit The firmware version is updated changed as enhancements are added to the HHC Second Screen where the range of the installed module ngineering unit is the default engineering unit for the module installed in the left bay Fourth Screen Revision 4 6 3 2004 where xx the range of the installed module engineering unit is the default engineering unit for the module installed in the left bay Note GQS 2 pressure measurement modules are avail able with a standard calibration or an optional enhanced temperature performance calibration Modules calibrated to provide enhanced temperature performance will pro vide the rated accuracy without any additional tempera ture error over an operating temperature range of 20 120 degrees Fahrenheit These modules will display when powered up The range indication is provided in the primary engi neering unit for each installed Quick Select module Upon initial power up an HHC used with an GQS RTI temperature module and probe will default to display ing the ohms resistance value for the probe Once set up this combination will default to the previously used temperature measurement unit such as Celsius Fahren heit Kelvin or Rankine The pr
38. list of the decimal codes for the available ASCII characters can be found in Appendix B Step 15 With the desired decimal representation for the ASCII character entered and displayed press the enter key ENT The HHC will return to pressure measurement and will transmit data to the terminal acquisition device computer or recorder as programmed While communicating engineering units may be changed or the HHC may be changed between basic pressure measurement and flow measurement Important Note Invoking set up functions or dedicated keypad functions will temporarily suspend the transmis sion of data during setup process For most functions data transmission will resume when the set up is com plete However the RS232 interface must be re enabled in the RS232 set up process to re initiate data transmis sion after either automatic data logging or leak detection functions are activated Section 20 0 Status The status selection provides a means to query the HHC as to the revision of firmware hardware and the last calibration date of sensor s installed The hardware and firmware revision numbers are for factory use in determining the level of firmware and hardware in the HHC In addition the ability to check calibration dates for installed Quick Select pressure modules simplifies the tracking of recertification requirements for the Quick Select pressure modules Section 20 1 Reviewing Instrument Status To invoke
39. log key DATA LOG The HHC system will now resume normal pressure measurement activities Section 22 8 Erasing Stored Data Standard Data Logging Mode Step 1 With the HHC system on and reading pressure press the data log key DATA LOG In response the HHC system will display THE LAST DATA LOG MENU SCREEN USED Revision 4 6 3 2004 Step 2 Using up down and arrows browse through the data log menu and locate the word Erase The menu line with the word Erase appears as Step 3 Using the left right arrow keys select the word Erase When selected the word Erase will flash Step 4 With the word Erase flashing press the enter key ENT The HHC system will respond by displaying The word cancel will be flashing Select the word erase using the arrow keys to erase stored data Step 5 Using the right arrow select the word Erase and press the enter key ENT WARNING Pressing the enter key with the erase command flashing will irrevocably erase all stored data If it is required that any of the stored data be retained select the word cancel and press the enter key on the keypad Step 6 To erase all stored data press the enter key ENT The HHC system will now resume standard pressure measurement activities Section 23 0 Certification Generation Enhanced Data Logging Mode The certification generation operating mode is designed to simplify the capture of measuremen
40. megaPascals mmHg millimeters of mercury cmWC centimeters of water column mmWC millimeters of water column kilograms per square centimeter user user programmable engineering unit see Section 8 2 for details Conversion factor is programmable for temperature Consult Section 8 5 for details Step 2 Using the left right and up down arrow keys select the desired engineering unit When selected the text for the desired engineering unit will flash In the above example mBar is the selected unit Step 3 With the desired engineering unit flashing press the enter key ENT The calibrator will respond by displaying the pressure measurement s in the newly selected engineering unit If two Quick Select pressure modules are installed the output of both will be displayed in the selected engi neering unit The HHC can also display the measure ment data of two installed Quick Select pressure modules in independent engineering units Section 8 4 provides the set up procedures for dual sensor dual engineering unit operation Section 8 2 Setting Custom User Defined Engineering Unit The HHC has a user programmable engineering unit available This allows for the display of pressure mea surement data in an engineering unit that is not in the library of the HHC Any unit of pressure measurement that is linearly proportional to pressure change can be programmed for use in the user engineering unit field
41. module with the locking tab up with the module bay on the base unit Step 4 Slide the Quick Select module into the base unit until the retaining release tab pops into the square cutout in the module bay of the base unit This will lock the Quick Select module into the base unit Step 5 Installation of the Quick Select module is now complete If an GQS RT1 or GQS TC1 interface module is to be used plug the appropriate temperature detector into the connector on the module To set up the HHC and temperature module combination proceed to section 16 for RTDs or section 17 for thermcouple detectors Important Note If only one module is to be used install the Quick Select System Protection module provided Follow the same procedure to install the system protection module as that used for a standard pressure measurement module Both module bays of the base unit should contain a Quick Select module to protect from dirt or other debris getting into the base unit assembly If only one Quick Select pressure module is needed install the System Protection Module part number GQS XS supplied with your unit at the time of shipment when using the HHC system Section 3 3 Starting Up the HHC System After the desired Quick Select pressure module s or Quick Select temperature measurement interface module and probe has been installed the HHC can be started up as follows Turn the system power on by pressing the on off key on instrument s
42. or company respon sible for its use or maintenance The following steps are to be followed to input user owner data Step 1 With the HHC on and reading pressure press the Set Up key designated SET UP SET UP Step 2 Using the arrow keys select the Owner function from the setup menu When selected the word Owner will flash on the display Step 3 With the word Owner flashing press the enter key ENT Step4 After pressing ENT the display will read Step 5 five digit owner access code was provided with your instrument at the time of shipment Use the number keys on the HHC to enter the Owner Access Code from left to right Note Two passwords were provided with your HHC One password provides access to the owner program ming field and the other provides access to the calibra tion data and recertification programming Please be certain to select the correct password These passwords are not interchangeable If at any time during the entry process you enter a number in error press the CE key to clear the entry and restart the access code entry process If the password codes have been lost contact your calibrator supplier The serial number of the base unit 15 required for the factory to provide product password 13 information Step 6 With the proper access code displayed press the enter key ENT If an incorrect access code 15 entered the HHC will respond To restart the entry pro
43. pressure port on the Quick Select pressure module For temperature measurement connect the RTD probe to be used to the Switchcraft connec tor on the interface module and proceed to Section 16 and 17 for instructions on setting up the calibrator for temperature measurement Section 3 4 Optional System Start Up Procedures There are additional set up operations that can be per formed to increase the overall capabilities of the HHC system these include 1 Auto off function to protect from inadvertently leav ing the HHC system on 2 Setting up battery level indication so that an estimate of the remaining battery life can be viewed at the push of a button 3 Programming the current date and time for use in date stamping data logged pressure values and starting delayed data logging activities on HHC systems with the optional data logging capability Current date and time information is only maintained in units with the data logging option 4 Programming owner operator information for display on the HHC to facilitate tracking of in house instrumen tation The following subsections provide information on the above listed start up procedures Section 3 4 1 Auto Off Battery Save Function BatFunc The HHC can be set up to automatically turn itself off if no keypad activity is detected for a 10 minute time period This capability will protect the two 9 volt batter ies from being depleted if the HHC is left on
44. rep resents the as received reading for the 1 Vdc measure ment The reading will look as follows Reading must be between 0 99995 and 1 00005 for base unit to be within specification After taking note of the reading press the enter key to proceed to the next as received reading The calibrator will respond by displaying the following This is used for calibration of the 20mA measurement capability The measured value must be within 0 0396 of the applied voltage for the current measurement to be within the 0 03 of full scale specification Step 14 To check the measured voltage using a preci sion voltage source Revision 4 6 3 2004 To apply 0 1 Vdc signal use same procedure as outlined in steps 10 and 11 of this section Step 15 The value displayed under the dashed line rep resents the as received reading for the 1 Vdc measure ment The reading will look something like follows Take note of the measured value Step 16 To repeat taking the as received readings press the enter key to return to the 1 0 Vdc as received reading screen To exit the as received readings mode press the CE key CE As received readings for the mA and voltage measure ments performed through the miniature banana jacks on the instrument keypad can be done by simply setting the base unit up to measure the electrical parameter cur rent or voltage to be tested and inputting a series of known values to the correct jacks R
45. stored information is viewed on the display or uploaded to a computer Revision 4 6 3 2004 48 Section 22 4 Automatic Data Logging Standard Data Logging Mode The automatic data logging function allows for the automatic unattended logging of measurement data The data logging process commences immediately after the completion of the set up of the automatic data function to be performed Automatic data logging can be accom plished by the following procedure Step 1 With the HHC system on and reading pressure press the data log key on the keypad DATA LOG The HHC system will respond by displaying THE LAST DATA LOG MENU SCREEN USED Step 2 Using the up down and right left arrows browse through the data log menu and locate the word Auto The menu line with the word Auto appears as To initiate automatic time interval data logging select the word Auto by using the arrow keys When selected the word Auto will flash on the display For manual operator controlled data entry proceed to Section 22 5 Step 3 With the word Auto flashing press the enter key ENT The HHC system will respond by displaying Step 4 Using the number keys enter the desired time interval in seconds The interval may be from 0 1 sec onds to 65 000 seconds Step 5 After the desired time interval is shown on the display press the enter key ENT Step 6 The HHC system will respond by displaying
46. the following Step 7 Using the arrow key select the desired Quick Select pressure modules to be monitored logged In this example we have opted to log the output from both Quick Select pressure modules Step 8 With the Quick Select module s to be moni tored selected and flashing press the enter key ENT The HHC system will respond by displaying Note If data storage is done with the time date stamp option activated the HHC system can store 387 sets of pressure measurements If data storage is done without the time date stamp option activated the HHC system can store 714 sets of pressure measurements data set is the full package of information defining the logged output from one module Using the arrow keys select the desired storage format The desired format will flash when selected In this example we have opted to forego the date time stamp of the stored data values Step 9 With the desired format displayed press the enter key ENT The HHC system will immediately begin storing the pressure data requested at the desired interval until instructed to stop the data logging process Step 10 stop the data logging process press the Data Log key The HHC system will respond by displaying Step 11 Using the arrow keys select the word off When selected the word will flash Step 12 With the word flashing press the enter key to disable the data log function
47. the enter key ENT Step6 The HHC will respond by displaying Step 7 Using the number keys enter the time interval in seconds over which the pressure decay test is to be performed The time interval may be from 1 to 65 000 seconds Revision 4 6 3 2004 32 Step 8 With the desired test interval displayed press the enter key ENT At this point the HHC will return to basic pressure measurement See Sections 15 3 and 15 4 for information on perform ing leak rate testing Section 15 3 Sensor Selection Rate or Pressure Decay Tests In order to perform leak testing the desired Quick Select pressure module must be monitored by the HHC system The following provides information on activating the desired pressure module for leak test applications With Two Quick Select Pressure Modules Installed If two pressure modules are installed and the output of both are displayed the HHC will default to the left pres sure module If two Quick Select pressure modules are installed and one of the two modules is deselected meaning the measurement values of that module are not shown on the display leak testing will use the active pressure module to perform the leak test measurements The port select key PORT SEL is used to select or deselect a module When a pressure module is dese lected the corresponding side of the display will indicate one of the following mA Volts or E If only one Quick Select pressu
48. the status selection follow the steps below Step 1 With the HHC on and reading pressure press the set up key SET UP Step 2 Using the left right and up down arrow keys select the Status function from the setup menu When selected the word Status will flash on the display Step 3 With the word Status flashing press the enter key ENT Step 4 After pressing ENT the display will read where snXXXXXX serial number of the base unit dd dd dd provides the date of calibration of the base unit fw revision level of the firmware hw revision level of the hardware After reviewing this display and recording any desired information press the enter key to call up the second status screen ENT Step 5 After pressing the enter key a second time the will respond by displaying the following 43 where dd dd dd the date of the last calibration of the left module Type provides information on the type of Quick Select pressure module Step 6 After reviewing this display and recording any desired information press the enter key to call up the third status screen After pressing the enter key the HHC will respond by displaying the following where dd dd dd date of the last calibration of the left module Type provides information on the type of Quick Select pressure module Review the displayed information and record any desired information Step 7 Press the enter key to return to the b
49. unit Any standard RTD probe with a Switch craft TA4M can be plugged into Switchcraft TA4F connector on the module The GQS RT1 module comes factory programmed with the curves for Pt 100 385 amp 392 Cu 10 and Ni 120 RTD probes It supports RTDs with outputs in the range of 0 400 ohms The GQS RT2 is supplied factory programmed to support the 1000 385 amp 392 RTD This interface module will support RTDs through an output up to 4000 ohms The GQS RT module can be programmed with coefficients for other RTD probes of interest and specific characteristics of a probe already included in the on board library can be Revision 4 6 3 2004 programmed into GQS RT unit to provide enhanced accuracy Each GQS RT interface module can accom modate up to 8 different programmed RTD calibration curves Programming of the RT module is accomplished via an optional software package and any PC compat ible computer with an available standard serial com munication port See Appendix E page 75 for probe connector pin out information Section 1 4 4 The GQS TC1 Quick Select Thermocouple Interface Module The GQS TC1 allows the HHC base unit when used with a thermocouple interface module to perform temperature measurement The GQS TC1 plugs directly into the Quick Select module bay in the base unit The thermocouple is then attactched to the GQS TC1 module via a male miniature thermocouple connector Section 2 0 Unpacking amp Gene
50. 110110 B6 229 11100101 E5 183 10110111 B7 230 11100110 E6 184 10111000 B8 231 11100111 E7 185 10111001 B9 232 11101000 E8 186 10111010 BA 233 11101001 E9 187 10111011 BB 234 11101010 EA 188 10111100 BC 235 11101011 EB 189 10111101 BD 236 11101100 EC 190 10111110 BE 237 11101101 ED 191 10111111 BF 238 11101110 EE 192 11000000 CO 239 11101111 EF 193 11000001 1 240 11110000 194 11000010 2 241 11110001 Fl 195 11000011 242 11110010 2 196 11000100 4 243 11110011 197 11000101 C5 244 11110100 F4 198 11000110 C6 245 11110101 F5 199 11000111 C7 246 11110110 F6 200 11001000 C8 247 11110111 F7 201 11001001 C9 248 11111000 F8 202 11001010 CA 249 11111001 F9 203 11001011 CB 250 mno FA 204 11001100 251 11111011 205 11001101 252 11111100 206 11001110 253 11111101 2307 254 11111110 FE 208 11010000 255 11111111 209 11010001 DI 210 11010010 D2 211 11000011 D3 212 11010100 D4 213 11010101 D5 214 11010110 D6 215 11010111 D7 216 11011000 D8 217 11011001 D9 218 11011010 DA 219 11011011 DB 220 11011100 DC 221 11011101 DD 222 11011110 DE 73 Revision 4 6 3 2004 APPENDIX PRODUCT SPECIFICATIONS BASE UNIT PHYSICAL SPECIFICATIONS PRESSURE SENSOR MODULE SPECIFICATIONS Dimensions 7 88 in L x 4 24 in W x 3 25 in H Weight
51. 2 Setting Up a Custom User Defined Engineering 15 8 3 Using a Custom User Defined Engineering 16 8 4 Display of Two Different Engineering Units for Two Installed Modules 17 8 5 Temperature Selection for H2O Conversion Factor esee 18 9 0 Tare FUNCHON ER 19 10 0 Hold ge 19 10 1 Using the Hold Punction 6 UR Pe Ee eene 19 11 0 Minimum and Maximum Value Tracking 20 3 Revision 4 6 3 2004 12 0 12 1 12 2 13 0 13 1 13 2 14 0 14 1 14 2 14 3 14 4 14 5 14 6 14 7 14 8 14 9 14 10 15 0 15 1 15 2 153 15 4 16 0 16 1 16 2 17 0 17 1 18 0 18 1 18 2 18 3 19 0 19 1 19 2 19 2 1 19 2 2 19 2 3 19 3 19 4 20 0 20 1 20 2 Revision 4 6 3 2004 Description Page DAMPING FUNCTION 20 Set FUnctiOn rer ep rete Ed er p ode Ee trips 20 Activating or Discontinuing Damping 21 Percent FUNCHOM 21 Set Up ot Percent Function enr RR detener pO pH 21 Use of Percent Function sees net Rss tree 22 Flow Velocity and Flow Volume Measurement Background 23 Set Up for Flow Velocity amp Volume Measurement esee 23 Blow Velocity Measurement opere cte
52. 3B 60 00111100 3C 61 00111101 3D 62 00111110 gt 63 00111111 64 01000000 40 65 01000001 41 66 01000010 42 67 01000011 43 68 01000100 44 69 01000101 45 70 01000110 46 71 01000111 47 72 01001000 48 73 01001001 49 74 01001010 4 75 01001011 4 K 76 01001100 4C L TI 01001101 4D M 78 01001110 4E N 79 01001111 AF 80 01010000 50 81 01010001 51 82 01010010 52 R 83 01010011 53 5 84 01010100 54 T 85 01010101 55 U 86 01010110 56 V 87 01010111 57 W 88 01011000 58 X 89 01011001 59 Y 90 01011010 5A Z 91 01011011 5B 92 01011100 5C 93 01011101 5D 94 01011110 5E 95 01011111 SF 96 01100000 60 97 01100001 61 98 01100010 62 b 99 01100011 63 c 100 01100100 64 d 101 01100101 65 e 102 01100110 66 f 103 01100111 67 g 104 01101000 68 h 105 01101001 69 1 106 01101010 1 107 01101011 6B k 108 01101100 6C 1 109 01101101 6 110 01101110 6E n 111 01101111 6F Revision 4 6 3 2004 ASCII Hexa ASCII Decimal Binary decimal Character Decimal Binary decimal Character 112 01110000 70 p 168 10101000 8 113 01110001 71 4 169 10101901 9 114 01110010 72 170 10101010 115 01110011 73 5 171 10101011 116 01110100 74 t 172 10101100 AC
53. 6 2 3 Product Cleaning orco odere te iniu MERE 6 3 0 System Start Up General Instructions 6 3 1 Battery T 6 3 2 Installation of Quick Select 7 3 3 Starting Up HHC System ice rte ret rtp Denke 7 3 4 Optional System Start Up 8 3 4 1 Auto Off Battery Save Function iii ioci ee tetti ua s 8 3 4 2 Set Up for Battery Charge Level 9 3 4 3 Low Battery Om 10 3 4 4 Programming Date and Time 10 3 4 5 Input of Owner Operator Information 2 11 3 5 Removing Quick Select Mod le Siirsin 12 4 0 Key Function 5 TU teste ra 12 5 0 Port Select Function ce tee str 13 6 0 Zer p 14 6 1 Zeroing One of Two Installed Quick Select Pressure Module 14 7 0 Displaying Current amp Voltage Measurements 2 224 24 4 4 2 14 8 0 Engineering Unit Selection 1n nire ere tiene 15 8 1 Selecting a Factory Programmed Engineering 15 8
54. 872 89098070 2069 89700 9860800 0981 6 179682000 7508050 7876100 05901 66608070 000972 798720 9970 01 4 6019976 168 6 168 60 8647100 2 07 2811600 28812070 619086 are 10866 1068000 0 1829800 1660 1686070 168 6 9 2660 119220 58068 2 61010 0 91161701 0069620 9009 6660 8144207 0001 26986000 0100 oL 0 OL ay 100000 100 rd M 9 266 5906 91 6101 9176010 0069620 90092 81209000 51201070 000 226986 eeocp L 01 01 OL 01 01 L6GO OL 200766 LZZ 0L 2126 62 0709 6c6 6e He70r 80520 LOL 625101 GZELO L SCELOL 606971 9 266 916101 91 6101 002962 90709 81 207 91201 001 000001 8269960 0001 82081 mq yO 9126600 125280 9006 0 255800 8142070 812071 0010 001 226986 860071070 0807807 107020 8069 009802 80162 0 2 0 19689 9 77689 097089070 9 968900 9 7689 150 d 3 8 2 09 2 09 2 009 2 029 3020 4 01 wou 095 ul puu 143AN0 01 70 Revision 4 6 3 2004 APPENDIX B ASCII CHARACTER CODE This chart shows the ASCII character set and corresponding code numbers in decimal hexadecimal and binary form
55. RT SEL key is used to select the information seen on the display The display configurations available are Left Side of Display Right Side of Display pres temp pres temp pres temp electrical measurement electrical measurement pres temp The pressure temperature value on the display cor responds with the measured value of the Quick Select module installed in the module bay on the corresponding side of the calibrator To read a current or voltage follow the steps below Step 1 With the HHC on and reading pressure temperature set the display as outlined in Section 5 0 to display the pressure measurement of the desired module Step 2 With the pressure measurement for the desired module displayed on one side and the electronic measurement on the other press the mA V key until the desired electrical measurement parameter appears For example with a pressure module installed in the left module bay pressing the mA V key will produce the following results First display when electronic measurement is initiated through the port select function Result from pressing mA V key first time Result from pressing mA V key a second time Using the combination of the port select function and the mA V function any combination of electrical measure ments and pressure measurements can be produced Section 8 0 Engineering Unit Selection Pressure Measurement The is factory programmed to provide pressure mea
56. T The HHC system is now set up for data logging Next the computer to be used for uploading must be prepared Section 24 1 Installing and Operating Upload Software Important Note Information regarding the installation and use of the upload utility software is provided in the supplemental software manual provided with the prod uct Please consult the User s Manual for the Upload Utility shipped with the HHC system Section 24 2 Battery Back Up Replacement When the display indicates that the battery back up is low the lithium battery should be replaced as soon as possible The battery is a standard 3 volt lithium battery Replacement should be made with a Panasonic BR1225 or CR1220 battery WARNING Replace battery with recommended batteries only Use of another battery may present a risk of fire or explo sion Replacement batteries are available through most industrial supply and electronic supply distributors Cau tion battery may explode if mistreated Do not recharge disassemble or dispose of in fire Note 1 Installation category 1 2 Pollution degree 2 C AUTION This procedure should only be performed by a trained electronic technician The HHC incorporates CMOS components that can be damaged by electrostatic discharge Technicians performing battery replacement must be properly grounded to avoid damaging sensitive electronic components Revision 4 6 3 2004 58 Follow the procedures
57. When selected the word Auto will flash on the display Step 3 With the word Auto flashing press the enter key ENT The HHC system will respond by displaying Revision 4 6 3 2004 Step 4 Using number keys enter desired time interval in seconds The interval may be from 0 1 sec onds to 65 000 seconds The above example shows an interval of 600 seconds or 10 minutes Step 5 After the desired time interval is entered and shown on the display press the enter key ENT The HHC system will respond by displaying the follow ing Step 6 Using the arrow key select the desired Quick Select Modules to be monitored In the above example the left module has been desig nated as the Quick Select Module to be monitored for data logging Step 7 With the Quick Select module s to be moni tored selected and flashing press the ENT key ENT After the Quick Select pressure module s to be moni tored has been entered the HHC system will respond by displaying Note If data storage is done with the time date stamp option the HHC system can store 387 sets of pressure measurements Sets of pressure measurement data include pressure measurement from the left right or both modules If data storage is done without the time date stamp option the HHC system can store 714 sets of pressure measurements Sets of pressure measurement data include pressure measurement from the left right or both modules Step 8 U
58. With the text PerCent flashing press the enter key Revision 4 6 3 2004 The will respond by displaying Step 4 Using the number keys enter the lowest calibra tion point for the device to be tested For example For a 0 100 inH2O range instrument enter zero For a 3 15 psi transmitter enter 3 For a 5 to 0 to 5 2 transducer enter 5 For a 0 200 degree RTD enter 0 When the desired zero value has been entered the display will look as follows for the testing of a 0 100 in H20 transducer If an incorrect value is entered use the CE key to clear the entry and re key the zero value With the desired zero value displayed press the enter key ENT The HHC will respond by displaying Step 5 Using the number keys enter the full scale range E S of the device to be calibrated For our example of a 0 100 in 20 range instrument the display will look as follows Step 6 With the desired input full scale displayed press the enter key ENT The HHC will respond by displaying As with input zero the output zero is the lowest output the device being calibrated will produce For example For 0 10 Vdc output device enter zero For a 4 20mA output device enter 4 For 1 5 output device enter Revision 4 6 3 2004 24 Step 7 With the desired output zero keyed in and displayed press the enter key ENT The will respond by displaying
59. a dashed line across the display press the set up key SET UP Step 4 Using the arrow keys locate the text in the set up menu Using the arrow keys select the text Calib from the set up menu When the calibration function has been selected it will flash on the display Step 5 With the text Calib displayed and flashing press the enter key ENT Step 6 The calibrator will respond by displaying Step 7 Enter the 5 digit calibration access code pro vided with the base unit Note The access code is specific for the base unit being used The code is provided on the certification sheet that accompanied product shipment from the factory See section 27 0 Access Code for information on lost passwords Step 8 With the correct access code displayed press the enter key ENT The calibrator will respond by displaying The electrical calibration process allows for the cali bration of the current and voltage input measurement capability of the base unit and calibration of the 0 1 vdc analog component of the interface between the base unit and the Quick Select module in use Step 9 When this screen appears the word Electrical for electrical recertification is already flashing There fore press the enter key to commence the electrical calibration ENT The calibrator will respond by displaying Step 10 To perform received readings use the down arrow key to select Reference C
60. a great deal of functionality Many of the product capabilities are activated by dedicated keys on the keypad Other functions are either activated or set up through a set up menu activated by pressing the set up key A brief overview of the function of each key follows Key Revision 4 6 3 2004 4 Designation On Off Set Up PORT SEL ZERO BAT CK ENG UNIT MIN MAX TARE FLOW LEAK DATA LOG Key Function Turn unit on and off Provides access to set up functions for various on board firmware functions capabilities Used to select displayed measure ment data Selection includes reading pres sure from either one or both installed sensors as well as selection of reading pressure and electrical measurements simultaneously See Section 5 0 for details Provides ability to zero either one or both Quick Select Modules See Sec tion 6 0 for details Provides graphical representation of remaining battery power levels SeeSection 3 4 2 for details Used to select desired engineering unit from the following psi inHg inWC ftSW Bar mBar kPa Mpa mmHg cmWC mmWC kg cm user Where user is an operator programmable engineering unit allowing the display of any single engineering unit not included in the above list See Section 8 0 for details Displays the minimum and maximum pressure values measured See Sec tion 11 0 for details Allows for subtraction of an operator
61. ade with two 0 1 full scale modules the maximum inaccuracy would be 0 2 In actual use it is gen erally acceptable to use the Root Sum of the Square RSS method of determining the accuracy of a multiple component measurement system Using the RSS method the accuracy of the dual module summation is approxi mately 0 14 of span For dual module differential pressure measurement The accuracy of the dual module differential pressure measurement is a function of the full scale range of the Quick Select pressure modules used in the measurement process and the magnitude of the dp range In general the accuracy for the dp measurement for dp ranges less than 10 of the rated range of the Quick select modules used is 0 37 of dp range 1 count For dp ranges greater than 10 of the range of the Quick Select pressure module installed the accuracy of the dp measurement is 0 37 of the dp range x 0 1 R1 where R1 equals the ratio of the module full scale to the dp full scale Sensor full scale dp full scale Section 21 2 Setting Up Dual Module Differential Pressure Measurement Step 1 With the calibrator off install the two Quick Select pressure modules in the calibrator Be certain to install the module so that the modules are in the desired module bays The subtraction process is always defined as the subtraction of the measured value of the right module from that of the measured value of the left module d p Left measurement value
62. air density is a function of temperature humidity barometric pressure The velocity equation ft min is as follow where differential pressure in inches of water Adw z the air density The air density can further be calculated through employing the following equation dpw V 1097xKx Adw Ad 0 07649 x Pa 14 73 x 520 T 460 where 25 the absolute pressure in duct in psia T air temperature in duct in degrees Fahrenheit Flow Volume velocity x duct area 144 2 Purchase of a characterized and certified pitot tube or annubar with a K factor determined for the specific probe to be used 3 Purchase of the highest accuracy differential pres sure Quick Select module available Section 14 1 Set Up for Flow Velocity and Flow Volume Measurement In preparation to perform flow velocity and volume measurements the operator should have the following information available for entry during the set up of the application on the HHC K factor Provided by the manufacturer of the flow probe to be used Air density default value has been programmed into the HHC in the event that a more accurate one cannot be calculated Duct area For air volume measurement the area of the duct in which measurements are to be taken must be calculated A GQS 1 differential type dual process connection Quick Select pressure module must be used for flow measurement activities Basic keypad functions such as d
63. allows programming of setpoints for activation of alarms or control valves Hi Lo not available with FM approval Enhanced LCD For 4 to 120 F operating range FM Approval Class 1 Div 1 Groups A B C amp D Not available with CE Mark CE Mark EMI RFI immunity rating not available with FM approval Power Requirements Standard 2 9Vdc Alkaline Batteries provides up to 30 hours operation per set Optional 110 or 220 Vac transformer to power calibrator from line power Certification N I S T Traceable certification document provided for base display unit and sensor modules Revision 4 6 3 2004 605 1 Pressure Types Gauge differential amp compound Available Ranges See Chart Available Accuracies 0 06 0 2 0 200 H20 0 07 0 0 25 0 1 in H20 or 0 1 of Span Compensated Temperature Range 20 F to 120 F Temperature Effect 004 of Span per F over compensated range from reference temperature range of 70 3 Repeatability 0 01 of span range 0 1 in H20 or higher 0 02 of span ranges below 0 1 in H20 Sensitivity 0 002 of span typical Media Compatibility Clean dry non conductive non corrosive gas Under Overpressure Capability 15 to 50 psi Maximum Static line Pressure 100 psi Process Connection Standard s NPT female Optional British standard Other Options FM Approved for use with FM approved base unit CE Mark for use with CE Mark ra
64. amping tare min max recall mA V measurement display battery check dis play hold data logging zero and port select are avail able for use during flow measurement activities Consult the appropriate sections of this manual for information on the set up and use of these product functions For flow measurement follow the steps outlined in the sections corresponding to the type of flow measurement velocity or volume to be performed Section 14 2 Flow Velocity Measurement Step 1 With the HHC on and displaying pressure mea surement values press the flow key FLOW The HHC will respond by displaying Step 2 To perform flow velocity measurements select the word velocity using the left right arrow keys When selected the word velocity will flash Revision 4 6 3 2004 Step 3 With word Velocity flashing press enter key ENT The will respond by displaying Step 4 Using the number keys input the required air density value or press enter to use the 0 07480 default value Step 5 With the required air density value displayed press the enter key ENT The will respond by displaying The flow coefficient or K factor is a value specific to the pitot tube or annubar to be used Consult the manufac turer of the annubar or pitot tube for the K factor for your flow probe A default value of 0 6 is factory programmed into the HHC firmware This value can be overwritten with a K factor for the sp
65. as been done The process to delete selected data points is as follows Step 1 With the HHC system on and reading pressure press the datalog key on the HHC system keypad DATA LOG In response the HHC system will display THE LAST DATA LOG MENU SCREEN USED Step 2 Using the up down and right left arrows browse through the data log menu and locate the word Review The menu line with the word Review appears as Using the arrow keys select the word Review When selected the word Review will flash 51 Step 3 With the word review flashing press the enter key ENT Step 4 Data points may be browsed through by using the keys as indicated below Key Result gt brings the next lowest stored address value to the display lt brings the next highest stored address value to the display skips 10 stored values in increasing address direction skips 10 stored values in decreasing address direction brings first data point to display mA V brings last data point to display To erase a stored data value press the clear entry key designated CE while the data to be deleted is displayed CE The HHC system will respond by displaying Step 5 To delete the displayed stored data point press the enter key ENT The HHC system will respond by displaying Step 6 Using the arrow keys additional data points can be reviewed and kept or deleted as desired Step 7 exit this function press the data
66. ase unit and the measure ment system will provide measurement accuracy in conformance with the published specification The GQS 1 Quick Select Pressure Module Section 1 4 1 GQS 1 Quick Select pressure modules provide special ized low pressure measurement capabilities GQS 1 Quick Select pressure modules incorporate a micro machined silicon variable capacitance sensor Inside the sensor there is a micro machined silicon diaphragm This diaphragm is between two non moving plates on which metal has been sputtered The air between the diaphragm and the non moving plates acts as an insulator As pressure or vacuum is applied to the sensor the diaphragm moves changing the distance between the diaphragm and the fixed plates This change in distance changes the capacitance of the sensor It is this variable capacitance that is measured and correlated to pressure or vacuum during the calibration process The sensor is connected to an Application Specific Integrated Circuit ASIC This ASIC generates a linear signal ramp and applies this signal to the top plate of the sensor while an equal and opposite signal is applied to the bottom plate When the measured pressure is balanced for example when both ports are opened to atmosphere the distance between the diaphragm and both of the fixed plates is the same When this is the case the signal to the top plate is capacitively coupled to the equal and opposite signal applied to the botto
67. ash on the display Step 3 With the text H2Oref flashing press the enter key ENT The will respond by displaying Step 4 Using the left right arrow keys select the desired temperature for the conversion factor The selected value will flash on the display In the above example the conversion factor for water at 60 degrees Fahrenheit was selected Step 5 With the desired temperature for the conversion factor flashing press the enter key ENT The selected conversion temperature will be activated and will be stored in Electrically Erasable Program mable Read Only Memory EEPROM It will not have to be reentered on power up unless a change in the refer ence temperature is desired After pressing the enter key the HHC will resume basic pressure measurement Section 9 0 Tare Function The HHC has the ability to tare subtract an operator selected value from the displayed pressure or tempera ture measurement value of either one or two installed Quick Select modules This is most commonly required in applications where a pressure pre load as in a weigh ing application must be subtracted from the displayed pressure measurement If the HHC is in use with two Quick Select modules independent tare values can be entered for each of the pressure modules If one of two installed Quick Select modules has been deactivated meaning the measured values are not shown on the display the calibrator will request a ta
68. asic pres sure measurement mode ENT Section 20 2 Battery Power Status Check The battery check key designated BAT CK allows for easy tracking of the power level remaining in the 9 Volt dc batteries that power the HHC To check the battery power level press the BAT CK key The HHC will respond by displaying the following where x xx V battery voltage level estimated battery life remaining as a percent of the 30 hours standard battery life provided by 2 fresh 9 Vdc batteries Note Only a battery voltage reading will be displayed if the battery life function is not enabled as detailed in section 3 4 2 Two 9 Volt alkaline batteries will power the HHC for approximately 30 hours The HHC display of percentage of battery life remaining is the of 30 hours remaining Use of non alkaline batteries will render this percent value inaccurate The bottom line of the display is a bar graph of the remaining battery life Important Notes 1 The bar graph must be reset when new batteries are installed To reset the bar graph follow the steps outlined in section 3 4 2 of this manual Revision 4 6 3 2004 2 The percent remaining is based on character istics of standard 9 Vdc alkaline batteries Use of other batteries types such as zinc lithium or rechargeable NiCad batteries will result in inaccurate estimation of remaining battery life in both percent indication and bar graph indication Step 1
69. ation pressure measurement value as well as either of the inputs independently 2 Due to the length of the engineering unit designa tion when the d p is expressed in a user engineering unit L R indication will be not be present on display The display is limited to 16 characters line and cannot display both the L R and a U XXXXXX engineering unit label Section 22 0 Data Logging Function Optional There are two basic ways to perform data logging with the HHC system These are e sequentially ungrouped storage e grouped for certification generation of an instrument under test Sequential data logging is detailed in this section Sec tion 22 1 of this manual Data logging with the enhanced certification generation data logging is detailed in Section 23 of this manual Note Base units equipped with optional data logging include a lithium battery to back up the Random Access Memory RAM used to store data logged values If the battery voltage is low the following message will appear on the DATA LOG key pressed When this message appears on the display the battery should be replaced as soon as possible Consult Section 24 2 for details on battery replacement Acceptable bat teries are listed in section 24 2 Section 22 1 Sequential Data Logging Function Optional The sequential data logging function provides three means of capturing and storing measurement data These are e automatically at a defined t
70. below to change the battery back up unit Note The HHC system should be turned off prior to initiating battery replacement procedure Step 1 Turn the HHC indicator bottom side up and locate the four 4 phillips head screws that secure the upper and lower case halves together Step 2 Remove and place aside the four Phillips head screws Step 3 Holding the two case halves together turn the instrument over right side up and slip off the top of the case Step 4 Note the orientation of the cables and the con nector used for each cable Then carefully disconnect the two ribbon cables One cable connects the keypad to the main board and the second connects the display to the main board Step 5 Locate battery to be replaced The battery unit is near connection P6 immediately to the right of pin 10 Step 6 Remove depleted battery and install replace ment unit Be certain to install appropriate 3 volt lithium battery as outlined in introduction to this section Step 7 Remove jumper on connection between pin 7 and pin 8 Wait 2 3 seconds and reinstall jumper in original location Step 8 Carefully reconnect cable between printed circuit board and keypad Step 9 Carefully reconnect cable between printed circuit board and display Step 10 Replace top half of case Step 11 Holding the two case halves together turn the unit over bottom side up Step 12 Reinstall four 4 screws used to connect the top and bottom secti
71. bels can be used For example a label can be entered and data taken to be stored under the label After completion of the measurement activities to be included under the first label another label may be entered and the next data set will follow that label in the data storage and transmis sion sequence Label information can be viewed on the HHC system display and is transmitted when stored values are reviewed via the computer upload program detailed in Section 24 To enter a label follow the steps below Step 1 With the HHC system on and reading pressure temperature press the data log key on the HHC system keypad DATA LOG In response the HHC system display will respond THE LAST DATA LOG MENU SCREEN USED Step 2 Using the up down and right left arrows browse through the data log menu and locate the word label The menu line that contains the label function appears as Step 3 Using the left right arrow keys select the word Label When selected the word label will flash Step 4 With the word Label flashing press the enter key ENT The HHC system will respond by displaying Step 5 Use the Up down arrows to enter letters num bers or a blank and the right left arrows to move the cursor to the position in which the character is to be entered When the label information is displayed press the enter key ENT The label is now stored and will appear in sequence with the corresponding data logged values when the
72. by displaying Step 12 To perform zero calibration adjustment select Yes and press the enter key ENT To skip zero adjustment and proceed to full scale cali bration adjustment select No and press the enter key Step 13 With the pressure module at zero pressure press the enter key ENT Note The following should be done to zero each type of pressure module Pressure Type Zero Source Absolute Apply absolute zero using vacuum pump Gauge Vent to atmosphere Compound Vent to atmosphere Differential Vent both ports to atmosphere Vacuum Vent to atmosphere The calibrator will respond by displaying Where xxxxxx is the voltage being read from the Quick 67 Select pressure module and the flashing word working indicates that the calibrator is making the internal adjust ments necessary for the recalibration After approximately 3 seconds the calibrator will dis play Step 14 To perform full scale calibration adjustment select Yes and press the enter key ENT To skip full scale adjustment and proceed to re lineariza tion process select No and press the enter key Important Note If full recalibration of the pressure module is desired the zero and span adjustment must be reset through these procedures prior to entering the linearization mode The zero and span values established in these procedures will be used for the zero and span values of the new calibration data If ze
73. cess after the access denied response re enter the owner set up function through the setup menu Step 7 After entry of the proper access code the display will read To enter a new owner name use the up and down arrows to scroll through the alphanumeric entries and the left and right arrows to move the active entry field cursor to the next location A blank can be inserted by using the down arrow with the letter A flashing on the display Continuing to press the down arrow after the blank appears will provide access to numerical values starting at 9 and decreasing to 0 The label may contain alphabetical numerical or a combination of both types of entries To review Up down arrows provide access as follows U V W X Y Z By maintaining pressure on the up down arrow the dis played number or letter will continue to change until the last character has been reached By pressing and releasing the up down arrow a single step from letter or number can be accomplished The left right arrow keys allow for entry of alpha numeric data in any of the available positions Step 8 After the desired operator information has been keyed the display will look as follows Step 9 After the desired owner user information has Revision 4 6 3 2004 been entered is displayed press enter key ENT The will respond Step 10 To store the owner user information displayed press the ENT key Pressing t
74. conds 0 60 Use the number keys to enter the hours minutes and seconds in the corresponding entry fields to establish the start time Step 4 When entered the start time will look as follows for a time of 9 30 PM Step 5 When the desired start time has been input and appears on the display press the enter key ENT The HHC system will respond by displaying Step 6 Enter the desired stop time using the number keys When properly entered a stop time of 11 30 PM will look as follows Step 7 When the desired stop time has been input and appears on the display of the HHC system press the enter key ENT The HHC system will respond by displaying Step 8 Use the right arrow key to select the word Enable When selected the word Enable will flash on the display Step 9 With the word Enable flashing press the enter key ENT Section 25 2 Data Log Set Up for Operation 59 with the Event Timer Automatic data logging must be set up to control the data logging parameters to be followed in time delayed data logging For delayed data logging the logging func tion must be set up as follows Step 1 With the HHC system on and reading pressure press the data log key DATA LOG The HHC system will respond by displaying the following THE LAST DATA LOG MENU SCREEN USED Step 2 To program the HHC system for time delayed data logging use the arrow keys to locate and select the word Auto in the data log menu
75. d have a minimum accuracy of 30 012596 of span To recertify a Quick Select pressure module follow the procedure outlined below Step 1 With the power to the calibrator off install the Quick Select pressure module to be calibrated in the left module bay looking down on the unit with the keypad up and the display at the top Step 2 Power up the calibrator system by pressing on off key ON OFF Step 3 Set the left side of the display for the engineer ing units to be used for the calibration process Informa tion on engineering unit selection is provided in Section 8 Engineering Unit Selection Step 4 With the calibrator on and displaying pressure measurement data press the set up key SET UP Step 5 Using the arrow keys locate the text Calib in the set up menu Select the text Calib When selected the text will flash on the display Step 6 With the text Calib displayed and flashing press the enter key ENT Step 7 The calibrator will respond by displaying Step 8 Enter the 5 digit calibration access code pro vided with the calibrator base unit Step 9 With the correct access code displayed press the enter key ENT The calibrator will respond by displaying Step 10 Using the down arrow key select the word Pressure When selected the word Pressure will flash on the display Step 11 With the word Pressure flashing press the enter key ENT The calibrator will respond
76. d releasing the up down arrow a single step from letter or number can be accomplished The left right arrow keys allow for entry of alpha numeric data in any of the 16 available positions The tag name can be any combination of alphabetical or numeric entries The maximum entries per tag name is 16 characters The tag name is the key designation under which all subsequent calibration for this calibration data set will be organized Tag names or tag numbers are routinely identifiers assigned to measurement instruments when put into service within a facility If no tag identifier is assigned to the device to be tested it is recommended that one be created by combining some abbreviation for the manufacturer s name and the instrument serial number for the device to be tested The use of the Cert firmware requires the entry of a tag name for each device to be calibrated Use the up down and left right arrows to enter a tag name as shown here Step 7 With the desired tag name displayed press the enter key ENT The HHC will respond by displaying The text AsFound will be flashing when this screen appears Select AsFound to store the initial uncorrected unadjusted calibration data To collect found data press the enter key with the text AsFound flashing on the display ENT Revision 4 6 3 2004 The will respond prompting operator to enter the number of found da
77. d select RS232 on the display of the HHC The text RS232 will flash on the display when selected Revision 4 6 3 2004 40 Step 3 With the text RS232 flashing press the enter key ENT This will activate the RS232 setup options sub menu The first screen that appears after selection of RS232 from the main setup menu is The RS232 interface must be enabled activated for the HHC to communicate with any RS232 device When the RS232 is not in use it is recommended that the RS232 interface be disabled to conserve on power use and maximize battery life Step 4 Use the arrow keys to select Enable activate and press the enter key Step 5 With the word Enable flashing press the enter key ENT Step 6 After selecting Enable the HHC will respond with the following display The current baud rate selection will flash on the display Step 7 Using the left right arrow keys select the desired baud rate The selected baud rate will flash on the display In the above example the baud rate 9600 has been selected Step 8 With the desired baud rate flashing press the enter key ENT After the desired baud rate has been entered theHHC will display Step 9 Using the arrow keys select the word Journal When selected the word Journal will flash Step 10 With word Journal flashing press enter key ENT The will respond by displaying the following Step 11 Using the number
78. dule THEORY With the TC1 module installed in the base unit set up to display in mV a precision millivolt calibrator supply will apply a known mV signal to the module base unit system simulating the Seebeck voltage in place of a thermocouple The applied mV signal can then be read on the base unit display and compared to the nominal input provided by the precision millivolt calibrator supply The TC1 module cannot be adjusted If the module will not meet the specified ac curacy contact the factory or instrument supplier CERTIFICATION PROCEDURE 2 AND Remove all existing modules from base unit handheld calibrator firmware rev 3 01 or later digital indicator firmware 2 00 or later and install the TC1 in the either module bay Attach copper wire to and terminal posts of a precision millivolt calibrator source rated at 002590 or better Wire the opposite end of the wires to a miniature 0 type copper copper thermocouple connector and plug the connector into the receptacle located in the top of the TC1 module Turn on the millivolt calibrator source and adjust until it is supplying OmV to the TC1 module Turn on the base unit by pressing the on off switch Allow the base unit to complete its startup routine Press the Setup button Using the arrow key toggle once to the right and down 7 times until is flashing Press enter Set engineering
79. e unit s electrical input Vdc mA calibration reference In addition the base unit employs a preci sion 1 VDC reference for interfacing with the modules which can be calibrated The calibration of this reference is critical to ensure the combined output of pressure module and base unit is within rated accuracy Section 27 2 Required Equipment The following equipment is required to perform recali bration or recertification of the calibrator 1 A precision voltage supply capable of providing 1 50 microvolts 0 00005 Vdc 2 Primary pressure standard with an accuracy rating of 4 1 compared to the rating of the pressure module to be tested 3 Test leads with banana jacks and mini clips 4 Recommended Model CQS calibration quick select module Although recalibration and recertifica tion work can be performed with out it this module will greatly simplify the process and reduce risk of damage to the base unit Revision 4 6 3 2004 62 Section 27 3 As Received Readings of the Base Unit Electronics Please note The following convention is used when referring to modules or module bays in this procedure Module Bay 1 Module Bay 2 Step 1 Remove any installed measurement modules If the CQS calibration module is to be used install it in module bay 1 at this time Step 2 Turn power on and allow for at least 15 minutes warm up time Step 3 With the calibrator powered up and displaying
80. e measurement first With pressure measurement set up deactivate the side of the display to remain in pressure mode prior to setting up the desired flow measurement parameters If flow measurement is set up before pres sure measurement access to pressure engineering units will be lost When set up to measure both pressure and flow engineering units for both measurements can be accessed as outlined in Section 8 4 Step 2 Use the port select key to deselect the displayed output of pressure from the module which is to be left in the pressure readout mode of operation When a module 15 deselected the corresponding side of the display on the HHC will read milliamp mA blank 7 or Volts V Press the port select key one time to deselect the right module Press the port select two times to deselect the left module PORT SEL Step 3 With the desired pressure module deselected follow the procedure outlined in Section 14 2 if the flow measurement is to be flow velocity or Section 14 4 if the flow measurement is to be a flow volume measurement Step 4 As outlined in Section 14 2 for flow velocity or Section 14 4 for flow volume select the desired engineer ing unit Step 5 With the display for the active flow measure ment correct reactivate the deactivated port using the port select function PORT SEL Note The units used to express flow measurement may be changed at any time while the HHC is displaying any flow measuremen
81. e entered for the spe cific engineering unit to be monitored For example if a setpoint of 10 is entered the alarm relay will trip when measured and displayed pressure exceeds the numerical value of 10 The HHC will not automatically convert the entered trip point to a new value to reflect a change in engineering units If Open is selected the low limit contact will be open when the measured pressure exceeds the setpoint value If Close is selected the contact will close if the setpoint 15 exceeded Step 7 Using the arrow keys select the desired mechanical configuration In this example we have con figured the system to close the relay contact when the alarm value is exceeded Step 8 When the desired configuration has been selected and the text is flashing on the display press the enter key ENT Step 9 After the enter key has been pressed the HHC will respond by displaying This will determine whether the HHC is monitoring the left or right Quick Select pressure or temperature module Using the arrow keys select the desired pressure module to be monitored Step 10 Use the left right arrow keys to select the desired module to be monitored In this example the left module has been identified for monitoring Step 11 With the desired module selected and flashing press the enter key ENT The alarm function is now armed and operating This function is automatically disabled when the HHC is turned off and must b
82. e re initiated by enabling the alarms via the set up menu Revision 4 6 3 2004 Section 27 0 Recertification the Calibrator Both the base unit and the pressure modules can be recalibrated and recertified in the field The base unit includes a firmware based menu driven procedure that provides operator prompts to facilitate the recalibration process The procedure encompasses both the acquisi tion of as found data and performing adjustment and recalibration of the base unit and modules The recertifi cation program is accessed via the set up menu key Access Code The calibration data is password protected with an access code The recalibration access code is different than the owner access code Both of the access codes are provided with the calibrator at time of shipment and are located on the base unit calibration certificate If the access code has been lost contact the factory and be prepared to provide the serial number of the base unit The serial number is located on the product label in the module bay of the base unit To locate the product label remove any installed pressure modules hold the base unit keypad side down and look into the module bays The label is located on the underside of the keypad front panel section of the base unit Section 27 1 Calibration Recertification Overview The base unit calibration firmware provides a means of linearization and recertification of pressure modules and th
83. eadband Testing Step 1 With the HHC on and reading pressure or tem perature press the trip detect key on the keypad TRIP DET The HHC will respond by displaying the following Step 2 Using the left right and up down arrow keys select the word deadband in the menu selection When selected the word deadband will flash Revision 4 6 3 2004 38 Step 3 With the word Deadband flashing press the enter key ENT Step 4 Gradually increase or decrease as required pressure vacuum or temperature until the display of the indicates that a change of state has been detected When the switch has tripped the HHC will display where Eng Unit is the pressure or temperature engineering unit in use Tripped indicates the pressure or temperature switch has tripped 12345 pressure at which the switch tripped e is voltage value Step 5 To perform a deadband test maintain the pressure vacuum or temperature and power applied to the switch and press any key to rearm the trip detection system TRIP DET Step 6 Gradually allow the pressure vacuum or temper ature level applied to the switch to return to the starting point Step 7 When the HHC detects a reset of the switch the will respond by displaying where XXXXXX is the measured trip point 722222 is the measured reset point is the measured deadband value Step 8 To perform additional deadband tests press any
84. ecific flow measurement probe to optimize flow measurement accuracy Step 6 Connect the pitot tube or annubar to the Quick Select pressure module as indicated in the manufactur ers manual for the flow probe high side to the high pres sure port on the Quick Select pressure module and low side to the low pressure port on the Quick Select module Place the probe in the duct as instructed in the probe manual The HHC will now display the measured dif ferential pressure in terms of flow velocity ft min To Exit Flow Velocity Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Section 14 3 Engineering Units for Flow Velocity As with standard pressure measurement the HHC can provide flow velocity in a variety of units of measure To select a unit of measure for flow velocity follow the steps below Step 1 With the HHC operating in the flow velocity mode refer to Section 14 1 for instructions on entering the flow velocity mode press the engineering unit key ENG UNIT The will respond by displaying the following Revision 4 6 3 2004 26 These are the 4 units of measure available for display of flow velocity Step 2 Using the left right and up down arrow keys select the desired unit of measure When selected the unit of measure will flash In this example the engineer ing unit of ft sec has been selected Step 3 With the desired unit of measure flashing press the enter
85. ect one time will deactivate the left pressure display converting it to an mA measurement field Pressing the port select a second time will deacti vate the right side converting it to an mA measurement field and returning the left side of the display to the function of flow measurement Since we want the right side to remain ft min we will deactivate it in the ft min mode by pressing the port select key once PORT SEL The will respond with the following display Step5 With the right side deactivated from flow mea surement activities press the engineering unit key ENG UNIT The will respond by displaying Step 6 Using the arrow keys select the desired engi neering unit for the data on the left side of the display In this example we have opted to display the flow measure ment data on the left side in terms of meters second rep resented by MeterSec on the display With the MeterSec engineering unit selected the display will look as follows with the text MeterSec flashing Step 7 With the text MeterSec selected and flashing press the enter key ENT The will respond by displaying the following Revision 4 6 3 2004 28 Step 8 Reactivate the right side of the display for flow measurement by pressing the Port Select key as required First press of the PORT SEL HHC will respond by displaying the following Second press of the PORT SEL HHC will respond b
86. ect the word Save and press the enter key To discard information and retain the information currently in the EEPROM of the calibra tor select Cancel and press the enter key If the save option is selected proceed to Step 21 To re linearize module proceed to Step 26 Step 21 If cancel is selected the calibrator will exit the calibration mode If save is selected the calibrator will prompt you to enter the date of the new calibration as follows Step 22 Using the number keys enter the current date such as For March 03 eleventh 11 1996 Step 23 With the desired date entered and displayed press the enter key ENT Step 24 Turn off the calibrator and install the desired Quick Select module Step 25 Turn on the calibrator to resume general pres sure measurement activities Step 26 To re linearize a Quick Select pressure module select the word Yes to the linearity query Important Note If full recalibration of the pressure module is desired the zero and span adjustment must be reset through these procedures prior to entering the Revision 4 6 3 2004 68 linearization mode The zero and span values established in these procedures will be used for the zero and span values of the new calibration data If zero and span are not reset at this time the recalibration will use the values for zero and span stored in memory from the previous Zero and span activities Step 27 With the word Y
87. efer to Section 7 0 to determine the set up procedure for the measurement of current and or voltage inputs As received readings are now completed Section 27 4 Adjustment Calibration Base Unit Electronics Step 1 With the calibrator on and displaying pressure measurement data press the set up key SET UP Step 2 Using the arrow keys locate text Calib in the set up menu Using the appropriate arrow keys select the text Calib from the set up menu Step 3 When the calibration function has been selected it will flash on the display Step 4 With the text Calib displayed and flashing press the enter key ENT Step 5 The calibrator will respond by displaying Step 6 Enter the 5 digit calibration access code pro Revision 4 6 3 2004 64 vided with the calibrator base unit Step 7 With the correct access code displayed press the enter key ENT The calibrator will respond by displaying The electrical calibration process allows for the calibra tion of the current and voltage input measurement capa bility of the base unit as well as the calibration of the 0 1 Vdc analog component of the interface between the base unit and the Quick Select module in use Step 8 Use the arrow keys to select the word electri cal When selected the word will flash on instru ment display Step 9 When this screen appears the word Electrical for electrical recertification is
88. ement capabilities include max min recall operator programmable tare values display hold opera tor programmable damping and user selected engineer ing units Application specific capabilities include flow velocity measurement flow volume mea surement leak detection leak rate quantification and switch testing Optional data logging time delayed data logging and programmable alarms are also available Section 1 4 Quick Select Modules Overview The Quick Select pressure module is a calibrated pres sure measurement device Quick Select pressure module units are available in a wide variety of pressure measure ment ranges The Quick Select RTD and therm ocouple interface modules allow the HHC base unit to provide precision temperature measurement data using standard RTD Resistance Temperature Detector or thermocou ple detectors The GQS RT1 module allows the HHC to function with most common platinum nickel and copper RTDs while the GQS TC1 supports most common thermocouples The Quick Select module communicates with the base unit via a 10 pin connector Quick Select pressure mod ules slide into the base unit automatically aligning the female 10 pin connector on the Quick Select pressure module with the male 10 pin connector in the base unit All calibration data is stored in Electrically Erasable Programmable Read Only Memory EEPROM resident in the Quick Select module As such any Quick Select module can be used in any b
89. ercentage of the total range This func tion applies to the calibration of both temperature and pressure transmitters For example if the HHC is being used to calibrate a 0 100 psi transmitter with a 4 20 mA output the HHC can be programmed to display the fol lowing data Display Pressure Normal Applied Mode 0 psi 4 mA 25 psi 8 50 psi 12 mA 75 psi 16 mA 100 psi 20 mA The percent mode of operation allows for quick and easy determination of the level of inaccuracy of the device under calibration For example If 50 psi was applied to a 100 psi device with a 0 10 Vdc output but instead of 5 Vdc the transmitter being cali brated had an output of 4 995 Vdc the HHC when used in the percent mode would display the following Therefore the percent mode of operation eliminates the need for operator calculations to determine the level of accuracy of the device under test If the HHC is equipped with the data logging option the percent error and percent full scale information can be stored in the calibrator on board memory To do this follow the set up instruction provided in Section 22 5 Manual Data Logging Section 13 1 Set Up of the Percent Function The percent function is set up as follows Step 1 With the HHC on and reading pressure press the SET UP key SET UP Step 2 Using the arrow keys select the text PerCent from the setup menu When selected the text PerCent will flash on the display Step 3
90. es flashing press the enter key ENT The calibrator will respond by displaying Step 28 Use the arrow keys to select Proceed to con tinue the linearization process Select Cancel using the arrow keys to discontinue the re linearization process SESWARNING Entering Proceed will erase linearization data in the EEPROM of the calibrator Step 29 To continue the linearization process with the word Proceed flashing press the enter key ENT The calibrator will respond by displaying Step 30 Apply the pressure required for point one and enter the numerical value using the number keys of the exact pressure level applied Use the engineering unit in use for the left pressure module at the time the calibra tion process was started When point 1 has been applied and entered the display will look as follows for calibra tion point of 10 002 Step 31 With the applied pressure displayed press enter key ENT The calibrator will respond by displaying After 3 5 seconds the calibrator will request the next calibration point by displaying Step 32 Apply the pressure required for the next cali bration point and enter the applied pressure value with the number keys For the second point a pressure of 20 003 has been applied Step 33 With the required pressure level applied and shown on the display press the enter key ENT Step 34 Repeat steps 23 26 as many times as required to prod
91. ess the flow key on the keypad of the HHC FLOW The HHC will respond by displaying Revision 4 6 3 2004 30 Step 4 Using the left right arrow keys select the desired measurement function In this case we have decided that the left side of the dis play will remain in the velocity mode and the right side will be changed to measure flow in terms of volume Therefore volume should be selected for this example Step 5 With the word volume flashing press the enter key ENT The will respond by displaying Refer to engineering unit selection Section 14 5 if an alternate unit of expressing flow volume is desired Step 6 Press the port select key to reactivate the left side of the display for flow or pressure measurement PORT SEL The left side of the display will have remained in terms of ft min When reactivated the display will look as fol lows The HHC is now set up for simultaneous display of flow volume and flow velocity To Exit Flow Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Section 14 10 Simultaneous Display of Flow and Electrical Output Measurements As outlined previously the HHC can present pressure measurement data from one or two Quick Select pres sure modules simultaneously This ability also extends to the HHC s ability to display flow measurement data In addition the HHC can simultaneously display a flow measurement on one side o
92. f the display and a current or voltage measurement on the other side of the display This capability can be useful in calibrating transducers and transmitters that are calibrated in terms of flow such as 0 200 ft minute To take a flow measurement and monitor the electrical output from the device under test follow the procedures below Step 1 Set the HHC up to function in the desired flow measurement velocity or volume mode of operation Refer to Section 14 2 for information on setting up the HHC for velocity measurement or Section 14 4 for infor mation on setting up the HHC for volume measurement Step 2 Select the desired engineering units as outlined in Sections 14 3 for flow velocity and 14 5 for flow volume Step 3 Press the port select key PORT SEL The will respond by changing the right side of the display from pressure flow measurement to the display of an mA measurement The display will continue to display the output from the left Quick Select module in terms of flow To read the output of the right Quick Select module in terms of flow and the electrical measurement output from the device under test press the Port Select key a second time Step 4 With the flow and electrical measurements appearing in the desired locations on the display the cur rent measurement can be changed to a voltage measure ment by pressing the mA V key mAV Pressing the mA V key once will change the display to Pressing the
93. f the remaining battery life This estimate is expressed as a percentage of the expected 30 hour life of newly installed alkaline batteries Use of non alkaline lithium or rechargeable batteries will render the life expectancy estimate inaccurate This function should be set up only when new batteries are installed If this function is not set up pressing the key will provide the measured remaining voltage of the installed batteries To have the capability to check the estimated remaining battery life follow the steps below Step 1 Press the ON OFF key on the keypad to turn the power on to the base unit I ON OFF Step 2 With the HHC and reading pressure press battery check key designated BAT CK SET UP Step 3 Using the arrow keys select the battery save function designated BatFunc in the set up menu When selected the text BatFunc will flash the display Step 4 With the BatFunc text flashing press the enter key ENT Step 5 Using the up down arrow keys to select CfgBat tIndicator to set battery level When selected the text will flash Step 6 To Enable the battery level indictor use the arrow keys to select the text Enable Step 7 With the text Enable flashing press the enter key The will respond by displaying where XXXXXXXXXXXXXXXXX is a bar graph represen tation of the remaining battery life and X XXV repre sents the voltage level of
94. gging or leak detection functions are activated Section 19 4 Setup of the RS232 Interface in the Inquiry use RS232 interface in the Inquiry Mode follow the steps below Step 1 With the HHC on and reading pressure press the set up key SET UP Step 2 Using the up down and left right arrow keys Revision 4 6 3 2004 move through menu selection and highlight text RS232 so that is flashes on the display Step 3 With the text RS232 flashing press the enter key ENT This will activate the RS232 setup options sub menu The first screen that appears after the selection of RS232 from the main setup menu is The RS232 interface must be enabled activated for the HHC to communicate with any RS232 device When the RS232 is not in use it is recommended that the RS232 interface be disabled to conserve on power use and maximize battery life Step 4 Use the arrow keys to select the word Enable When selected the word Enable will flash Step5 With the word Enable flashing press the enter key ENT Step 6 After entering the Enable option the HHC will respond with the following display The currently selected baud rate will be flashing Step 7 Using the left right arrow keys select the desired baud rate The selected baud rate will flash on the dis play of the HHC In this above example the baud rate 9600 has been selected Step 8 With the desired baud rate selected and flas
95. gh activation of appropriate input fields in the setup menu Examples of required input data include For Damping Level of damping desired For Engineering Unit Selection Water reference tem perature or user non library engineering unit entry can be selected For Leak Type of measurement leak rate vs pressure decay time to monitor and for leak rate applications the volume of the vessel to be monitored For Readout Input zero and span output zero and span and device type I P P E The required data is input through the set up functions provided by the corresponding menu options accessed and available by pressing the setup key 15 Complete details of each of the above outlined capabili ties is included in the section referenced after the func tion summary provided above Section 5 0 Port Select Function The Port Select Key designated PORT SEL provides the ability to select either of the two installed Quick Select modules for display both modules for display or either a pressure temperature module on one side and a current or voltage measurement on the other side of the display For example if the HHC has two pressure mod ules installed and is reading in psi the standard display for dual pressure readout would be Pressing the Port Select key once will result in the fol lowing display change Pressing the Port Select key a second time will result in the following display change
96. he CE key will return the HHC to the pressure measurement mode If entry of new owner information is still required restart the process as outlined in steps 1 9 above Owner information is stored in Electrically Erasable Programmable Read Only Memory EEPROM This information should only need to be changed or re entered when the owner user changes Section 3 5 Removing Quick Select Pressure Temperature Modules Changing Quick Select pressure modules therefore changing the measurement ranges in use is quick and easy Simply follow the steps below to change Quick Select pressure modules Step 1 Using the on off key on the keypad of the base unit turn the power to the base unit off ON OFF Step 2 With one hand hold base unit keypad side down and press down on the square retaining tab located near the upper strap pin on the bottom of the base unit Step 3 Maintain pressure the retaining tab and with your other hand firmly grasp the pressure manifold that extends from the end of the Quick Select pressure module and slide the module out of the module bay Important Note Both module bays of the base unit should contain a pressure module to protect from dirt or other debris getting into the base unit assembly If only one Quick Select pressure module is needed install the System Protection Module part number 875X114 01 supplied with your unit at the time of shipment Section 4 0 Key Function Overview The HHC has
97. heck When selected the text Reference Check will flash on the display Step 11 Enter Key ENT The calibrator will respond by displaying With text Reference Check Flashing press the If the voltage standard is set to a level in excess of the recommended calibration input or is connected to incor rect pins or in contact with pins adjacent to the specified input pins during the calibration process the base unit electronics may be damaged Use extreme caution when connecting test leads and applying test voltage inputs The Model CQS Calibration Quick Select module is available to simplify connection of the voltage stan dard to the base unit The module provides banana jack 63 connections for the input of the voltage standard to the calibrator base unit Step 12 check the measured voltage using preci sion voltage source apply 1 00000 volt 50 microvolts Do not use a voltage less than or greater than 1 volt 50 microvolts When the calibrator is ready to mea sure the reference voltage it will display These pins are located in the connector in module bay 1 as shown below 7 AME eX Pin 6 ECEUK EC Pin 7 To apply 1 Vdc signal to calibrator connect precision voltage generator so that the positive line is connected to Pin 7 and the ground is connected to Pin 6 Step 13 The value displayed under the dashed line
98. hing press the enter key ENT Step 9 After the desired baud rate has been entered the HHC will display Step 10 Using the arrow keys select the word Inquiry when selected the word will flash Revision 4 6 3 2004 42 Step 11 With word Inquiry flashing press enter key ENT The will respond by displaying the following Step 12 Using the number keys enter the desired end of message character in decimal code A list of the avail able ASCII characters and their corresponding decimal codes is provided in Appendix B The inquiry character acts as a signal to the HHC to transmit a data set The inquiry character is transmitted to the HHC from the computer or other device controlling the data transmis sion activities Select an inquiry character to be used in programming as the transmission prompt Step 13 With the decimal representation for the desired inquiry character displayed press the enter key ENT The will respond by displaying Step 14 Select the desired end of message character For data transmission to a screen on a dumb terminal CrLf carriage return line feed is the most common option If the data output is to be transmitted into a data base or spreadsheet program the end of message charac ter must be selected in accordance with the requirements of the application software Using the number keys enter the decimal code for the selected end of message character A
99. ication Switch Arrangement Form C Resistance max 50 micro ohms Switching Power max 30 W 62 5 resistive load Switching Voltage max 110 V dc 125 Vac Switching Current max 1 Amp Switching Capability min 10 micro amp 10 mVdc The relay contact closures are accessed through the 9 Pin female D connector on the right side of the HHC Pin out information for set point contacts is as follows Pin 1 Relay 1 common Pin 7 Relay 1 normally open or normally closed Pins 1 9 8 7 6 Pins Pin 8 Relay 2 common Pin 9 Relay 2 normally opened or normally closed Section 26 1 Alarm Set Up The alarm level trip points can be programmed from the keypad as follows Step 1 With the HHC on and reading pressure press the SET UP key SET UP Step 2 Using arrow keys select the alarm function from the setup menu When selected the word Alarm will flash on the display Step 3 With the word Alarm flashing press the enter key ENT This is an optional feature if the option is not installed the HHC system will respond with If this message appears press any key to resume normal operation Step 4 After pressing the enter key the display will read To set alarm levels using the arrow keys select the word Enable Step 5 With the word Enable flashing press the enter key ENT Step 6 After pressing the enter key the HHC will respond 61 Important Note Set points must b
100. ick Select pressure module in bar Pressing the port select one time will deactivate the left pressure display converting it to a mA measurement field Pressing the port select a second time will deacti vate the right side converting it to a mA measurement field and returning the left side of the display to the function of pressure measurement Since we want the right side to remain psi we will deac tivate it in the psi mode by pressing the port select key once PORT SEL The will respond with the following display Step5 With the right side deactivated from pressure measurement activities press the engineering unit key designated ENG UNIT on the keypad ENG UNIT Revision 4 6 3 2004 The will respond by displaying Using the arrow keys select the desired engineering unit for the left side In this example we have opted for the engineering unit of Bar With the Bar engineering unit selected the display will look as follows with the text flashing Step6 With the desired engineering unit selected flashing press the enter key ENT The will respond by displaying the following Step 7 Reactivate the right side of the display for pres sure measurement by pressing the Port Select key as required First press of the port select key PORT SEL will respond by displaying the following Second press of the PORT SEL HHC will respond by displaying the fol
101. ill increase This will be seen on the display as each data set is added to the data log memory In addition the complete memory available summary as shown above will be dis played each time the CertGen process is initiated The HHC can store a minimum of 10 complete calibra tions including 10 received data points 10 left data points tag name ambient temperature at time of as found tests ambient temperature at time of left tests and the indication of the action taken Step 5 Pressing any key will clear the memory avail able summary from the display and allow continuation of the CertGen process After pressing any key the HHC will respond by display ing the following The text New Tag will automatically be selected and be flashing on the display when the CertGen process is initiated Step 6 initiate the data logging of measurement information for the generation of a certification sheet press the Enter key with the text New Tag flashing ENT The will respond by displaying the following 23 Use the up and down arrow keys to enter letters and or numbers to define an instrument tag name The entry selection sequence is as follows Up down arrows provide access as follows T U V W X Y Z By maintaining pressure on the up down arrow the dis played number or letter will continue to change until the last character has been reached By pressing an
102. imary engineering unit for a given Quick Select pressure module along with the measurement range is included on the module label The information on the left side of the display corre sponds with the Quick Select module installed in the left module bay and information on right side of the display corresponds with the Quick Select module installed in the right module bay If only one module is installed the corresponding side of the display will indicate module on power up After the third screen the HHC will commence provid ing pressure measurement data The format for display of the measurement data is as follows measured value with sign When only one module is installed the side of the dis play corresponding to the side of the base unit that does not have a module will display If necessary used with a Quick Select pres sure module may be zeroed by pressing the Zero key prior to beginning measurement activities Additional details on zeroing the HHC system are provided in Sec tion 6 0 of this manual The is now ready for basic pressure or temperature measurement Simply connect the pressure port s of the Revision 4 6 3 2004 10 Quick Select pressure module s to be used to the pres sure source to be measured If a gauge pressure mea surement is to be made using a differential Quick Select pressure module be sure to connect the pressure to be measured to the high
103. ime interval e automatically with delayed start e manually at the push of the data store key In the automatic data logging mode data logging can be programmed to occur at a time interval of from 0 1 to 65 000 seconds The manual mode of data logging allows storage of the displayed measurement data at the push of a key In the sequential data logging mode the HHC has the capacity to store a maximum of 714 data sets with the time date stamp function disabled If the time date stamp is enabled the HHC system data logging memory can store a maximum of 387 data sets Each data set includes the following the record number the measured value and the engineering units of the measurement value If the time date stamp is enabled the time hours minutes seconds and date Year Month Day are included with the logged measurement data 47 When used in conjunction with the Event Timer function see Section 24 the HHC system can be set up to take data during a selected future time period at an operator programmed time interval For example the combina tion of data logging and event timer provides the ability to set up the HHC system to take pressure measurements from 9 00 PM to 11 00 PM at a timed interval of one data set every 10 seconds without operator intervention Section 22 2 Setting up the Data Logging Function Optional The setup menu for the data logging function is accessed through a dedicated key on the keypad of the HHC sys
104. inadver tently The following procedure is used to activate or disable the battery save function Step 1 With the HHC on and reading pressure press SET UP key SET UP Step 2 Using the arrow keys select the battery func tion submenu designated BatFunc in the set up menu When selected the text will flash on display Step 3 With BatFunc flashing press enter key ENT Step 4 Using the up down arrow keys to select Auto Shut off When selected the text will flash Step 5 With the words Auto shut off flashing press enter to activate the battery save function ENT The PTE will respond by displaying the following If Enable is selected the HHC will automatically turn off if there is no keypad activity detected for a period of 10 minutes If Disable is selected the HHC will remain on continuously until the battery voltage is no longer sufficient to power the system The battery save mode selected is stored in Electrically Erasable Programmable Read Only Memory EEPROM As such it does not require reprogramming on power up Note An optional AC adapter is available for long term continuous measurement activities Section 3 4 2 Set Up for Battery Charge Level Indication If this function is not set up pressing the BAT CK key will provide a measurement of the remaining voltage of the installed batteries If the battery check function is set up the HHC can provide an estimate o
105. information provided regarding the number of test points remaining The number displayed may be completely allocated to measurement data without worry about leaving space for needed labelling Step 8 Using the numeral keys enter the desired number of found data points to be logged In this example 10 data sets will be stored in the calibrator s data logging memory Step 9 With the desired number of test points entered and displayed press the enter key ENT The HHC will respond by returning basic measurement Revision 4 6 3 2004 54 operation Step 10 Prior to beginning the collection of data the HHC should be set up to display the information to be logged in the HHC s memory For example in standard transmitter calibration the calibrator display will rou tinely display the measured value from the Quick Select pressure module being used as the pressure standard and the measured current mA value output from the transmitter input to the mA and COMM jacks on the calibrator front panel as a result of the pressure input applied to the transmitter Therefore the HHC will typically be displaying either of the two following sets of information when performing the calibration process or where the pressure measurement value the current measurement value output from the device under test Step 11 With the data to be logged shown dis play introduce the first pressu
106. ing units Section 8 4 Display of Two Engineering Units The HHC can display pressure measurement data from two installed Quick Select pressure modules in indepen dent engineering units To display two different engi neering units simultaneously the following procedure should be followed Step 1 With the HHC on and displaying pressure mea surement data from two Quick Select pressure modules press the engineering unit key designated ENG UNIT on the keypad 19 UNIT Step 2 Using the arrow keys select either of the two desired engineering units For this example we will select psi as one of the desired units With psi selected the text psi will flash on the display and the display will look as follows Step 3 Press the enter key to select psi ENT The will respond by returning to the pressure mea surement mode and will display the measurement data for both Quick Select pressure modules in psi as follows Step 4 Next press the port select to deactivate the dis play of pressure measurement data on the side that you wish to maintain pressure measurement in terms of psi A pressure display is deactivated when the correspond ing side of the display contains milliamp mA data Voltage V data or is blank See Section 5 0 for details on the port select function In this case we will assume that the right side will remain in psi and our goal is to present the measurement data from the left Qu
107. ith resis tance outputs of 400 ohms or less GQS RT2 Accommodates Pt1000 and other common 2 3 or 4 wire probes with resistance outputs of 4000 ohms or less Selectable Units of Measure C F K and ohms Input Receptacle Accepts TA4F type RTD connector RTD Probes Pt 100 probes 6 or 12 length with or without handle DIN Class A accuracy Includes mating TA4F connector Options FM approved for use with FM approved base unit CE not available GQS TC1 Thermocouple Compatibility Programmed to provide direct temperature readout from types J K T E S amp N ther mocouples or direct millivolt readout from any thermocouple Reference Junction Automatic internal or manual external Resolution Automatic or manually selectable up to 01 Units of Measure Selectable C F K R and millivolts Receptacle Accepts miniature thermocouple connector Omega type SMP Options FM approved for use with FM approved base unit CE not available 110Vac 60 Hz ac Adapter 220Vac 50 Hz ac Adapter Contoured protective case Soft carrying case Hard carrying case LPSlla External 24vdc Loop Power Supply to power transducers and pressure switch test circuit SM 1 Voltage Adapter provides ability to check live pressure switches Specifications subject to change without notice PRODUCT SPECIFICATIONS 605 2 605 1 psi H20 mE gauge and gauge Other E
108. key ENT After pressing the enter key the HHC will resume mea suring flow velocity in the selected unit of measure Section 14 4 Flow Volume Measurement Note In order to do flow volume measurement you must first set up the measurement parameters required for flow velocity Failure to do this will result in the calibrator accessing the previously stored input data on air density and K factor in the generation of the flow volume measurement Step 1 With the HHC on and displaying pressure mea surement data press the flow key FLOW The HHC will respond by displaying Step 2 Using the left right arrow keys select the word volume When selected the word volume will flash Step 3 With the word Volume flashing press the enter key ENT The HHC will respond by displaying Step 4 Calculate the area of the duct for which flow volume is to be determined The equations for area cal culations are as follows For rectangular or square ducts area square inches W x H where W width of the duct in inches height of the duct in inches For round ducts area square inches V4 D where 3 141592 D diameter of the duct in inches Step 5 Using the number keys input the area value calculated in Step 4 Step 6 With the appropriate area value displayed press the enter key ENT If an incorrect area value is keyed press the clear entry CE key to reenter the required data The HHC will n
109. keys enter the desired inter val in seconds between data transmissions The interval may be any value from 1 second to 65000 seconds In the example below the HHC is being instructed to trans mit a set of readings every 600 seconds 10 minutes Step 12 With the desired time interval displayed press the enter key ENT The will respond by displaying Step 13 Select the desired end of message character For data transmission to a screen on a dumb terminal CrLf carriage return line feed is the most common option If the data output is to be transmitted into a data base or spreadsheet program the end of message charac ter must be selected in accordance with the requirements of the application software Proceed to Step 16 to input a custom end of message character Step 14 To use CrLf as the end of message charac ter use the arrow keys to select the text CrLf When selected the text will flash Step 15 With the text CrLf flashing press the enter key ENT The HHC will return to pressure temperature measure ment and will transmit data to the terminal acquisition device computer or recorder as programmed While communicating engineering units may be changed or the HHC may be changed between basic pressure mea surement and flow measurement Important Note Invoking set up functions or dedicated keypad functions will temporarily suspend the transmis 41 sion of data during set
110. lected pressure module XXXX the measured pressure change during pres sure decay test For Leak Rate Testing at the end of the test the HHC will display the following where Eng Unit the engineering unit of the current pressure measurement value current pressure measurement for the selected pressure module XXXX the measured leak rate over the test interval To resume basic pressure measurement press the clear entry CE enter E key or any of the four arrow keys Pressing any function key will activate that selection For example pressing the engineering unit select key ENG UNIT will activate the engineering unit selection program Important Note After completing leak testing the HHC will display pressure measurement data for the module that was used in the testing process and will display on the other side of the display If a second module is installed in the other sensor bay it can be re selected using the port select function PORT SEL as detailed in Section 5 0 Section 16 0 Temperature Measurement using RTD Probes The HHC can be used with most standard RTDs Resis tance Temperature Detectors to provide precision tem perature measurements An GQS RT type Quick Select module is needed in order for the HHC to perform temperature measurement with an RTD The GQS RT provides the interface between the calibrator base unit and the RTD probe There are two GQS RT Quick
111. lowing Using this process any engineering unit may be selected for display of the right or left Quick Select pressure module measurement data Section 8 5 Temperature Selection for Conversion Factor The HHC includes a library of 12 factory programmed engineering units This selection includes the engineer ing units 20 mmH20 cmH20 The pressure generated by a column of water will vary with the tem perature of the water Over the years several temperatures have evolved into industry standards These are the conversion factors Revision 4 6 3 2004 20 most commonly used by manufacturers of pressure instruments when calibrating pressure measurement devices in terms of the height of a column of water To facilitate your calibration and test of these instruments the HHC includes 3 conversion factors for each of the water column based pressure engineering units The conversion factors are for the temperatures of 4 and 20 degrees Celsius and 60 degrees Fahrenheit The factory default setting is 20 degrees C The selection of the desired temperature for use in the conversion of water based pressure measurements can be accomplished by following these steps Step 1 With the HHC on and reading pressure press the SET UP key SET UP Step 2 Using the up down and left right arrow keys select the H2O reference option displayed as H2Oref in the set up menu When selected the text 2 will fl
112. ly 30 hours on the two 9 Vdc batteries Alkaline batteries are recommended for use in the HHC system Step 5 Insert the retaining spacer between the two 9 volt batteries This will insure that the batteries will not disconnect or be shaken loose during normal operation Step 6 Replace battery compartment cover by sliding cover back into position until it locks in place Step 7 Replace strap by threading strap through the opening starting closest to battery compartment and reattaching Velcro The strap may be adjusted in this fashion to provide for proper strap length to accommo date any hand size Installation of Quick Select Module in a Vacant Module Bay Section 3 2 Caution Quick Select modules should be installed with the power off on the base unit Failure to turn the base unit off prior to changing pressure measurement mod ules could damage the instrument or module electron ics or lock up microprocessor operation If power is inadvertently left on and the base unit locks up looses communication after changing Quick Select modules simply power down the unit and restart Refer to Section 3 5 for the procedure to remove a Quick Select module To insert a Quick Select module follow the process below Step 1 Make certain the power is off on the base unit Step 2 Hold the base unit in one hand with the keypad side down Step 3 Holding the Quick Select module to be installed in the other hand align the
113. m plate As a result no signal current will flow through the center plate diaphragm When the diaphragm is moved off center by the application of pressure or vacuum the excess current flows through the center plate to an input differentiator in the ASIC The differentiator translates the frequency of the sensor output into a voltage which is scaled over the full scale range of the instrument GQS 1 modules are available in ranges from 0 25 inches of water through 200 inches of water These modules can be configured to provide differential gauge or compound pressure measurement capabilities They are designed for use on clean dry noncorrosive and nonconductive gases A complete listing of the available GQS 1 modules is provided in Appendix C Section 1 4 2 The GQS 2 Quick Select Pressure Module The GQS 2 Quick Select pressure module incorporates a micro machined piezoresistive strain gauge sensor This technology takes advantage of the fact that when put under stress as with the flexing of a diaphragm under pressure or vacuum the resistive properties of a piece of silicon will change In the manufacturing process resis tors are deposited in a silicon substrate The resistors are typically configured in a wheatstone bridge orienta tion When positioned in this fashion the output will be near zero when no pressure stress is applied and will increase in a near linear fashion with the application of pressure or vacuum The rever
114. mA V key a second time will change the display to volts Step 5 Connect the Quick Select pressure module to be used to the pressure source to be measured Step 6 Connect the output of the device to the minia ture banana jacks on the keypad of the HHC as follows For current output devices use the mA jacks For voltage output devices use the V and coM jacks Percent mode operation is also available for flow test and calibration of measurement instruments Refer to Section 13 0 for percent function set up and use information Section 15 0 Leak Detection Function The provides the ability to detect and quantify leaks in terms of pressure decay over time psi change per unit of time or in terms of leak rate cc sec In the pressure decay over time mode the HHC will monitor the desired pressure vessel for the programmed time interval and at the end of the monitoring time period display the measured change in pressure In the 31 leak rate mode the HHC will monitor pressure vessel over the programmed time interval and display the leak rate in terms of cc seconds Use of the leak detection function requires the setup of the leak test parameters The following procedures should be followed to set up and perform a leak test using the HHC Section 15 1 Leak Rate Function Setup Step 1 With the HHC on and displaying pressure press the set up key SET UP Step 2 Using the arrow keys locate a
115. measurement data include all the data stored to define the output of one module Using the arrow keys select the Revision 4 6 3 2004 desired storage format The desired format will flash on the display when selected In this example we have opted to forego the date time stamp of the stored data values Step 6 With the desired format selected and flashing press the enter key ENT Step 7 The HHC system is now ready to log data on command To store a measured pressure flow leak test switch test min max data set current or voltage value press the data store key DATA STORE Step 8 To disable the manual data logging capability press the Data Log key DATA LOG The HHC system will respond by displaying Step 9 Using the arrow keys select the word When selected the word Off will flash Step 10 With the word flashing press the enter key to disable the data log function ENT Manual operator initiated data logging has now been terminated Section 22 6 Review of Stored Data On Instrument Display Standard Data Logging Mode Data stored in either the manual or automatic data log ging functions can be reviewed on the display of the HHC system or up loaded to an IBM compatible PC For information regarding uploading of stored data to a personal computer skip to Section 24 0 The HHC system provides the ability to review on the display the data logged measurement value
116. meral keys to enter the number of left data records to be stored The number selected can be any value between 1 and 21 In this example 5 As Left data records will be taken and stored in the HHC s memory Step 21 Be certain that the desired data to be logged is shown on the HHC s display With the data to be logged shown on the display apply the first pressure temperature measurement to be logged After the system has stabilized press the data store key DATA STORE The will briefly show the following display where XX the number of data sets records stored in this calibration data set yy the percent of data logging memory allocated to stored data 1234 the measured values in the engineering units chosen Step 22 Repeat the process subjecting the HHC and the device under test to the controlled pressure temperature input for each test point to be taken and store the measured values by pressing the data store key for each measurement set to be logged DATA Revision 4 6 3 2004 56 STORE After the last set of data to be logged has been stored the HHC will prompt the operator with the following display The options available are as follows View Allows operator to scan through the stored values using the arrow keys Use the left pointing arrow to move in decreasing order from data point to data point Use the downward pointing arrow to move in decreasing order 10 data
117. n 8 0 while the RS232 interface is in use In addition the HHC can be changed from pressure to flow measurement while the RS232 interface is in use The second line displays the minimum and maximum values stored in memory for the left sensor module since the last time the memory locations were cleared The third line displays the minimum and maximum values measured by the right sensor since the last time the minimum and maximum pressure values were cleared from memory In the journal mode the RS232 interface will output the data as outlined above at a regular interval The interval is selected in the RS232 setup procedure and may be from 1 second to 65 000 seconds Section 19 2 3 RS232 Interface Inquiry Mode Overview When the RS232 interface of the HHC is set up in inquiry mode the HHC transmits the data string shown be low in response to an operator selected inquiry character The first value represents the measurement value dis played on the left side of the display and includes the selected unit of measure The second value represents the measurement value displayed on the right side of the display including the selected unit of measure Section 19 3 Setup of the RS232 Interface in the Journal Mode To use the RS232 interface in the Journal Mode follow the steps below Step 1 With the HHC on and reading pressure press the set up key SET UP Step 2 Using the arrow keys move through the menu selections an
118. nd select the words LeakRate in the set up menu When selected the words LeakRate will flash Step 3 With the words LeakRate flashing press the enter key ENT The HHC will respond by displaying Step 5 With the word Rate flashing press the enter key ENT The HHC will respond by displaying Step 6 Using the number keys enter the volume of the vessel to be tested in cubic inches Step 7 With the HHC displaying the required vessel volume press the enter key ENT Step8 The HHC will respond by displaying Revision 4 6 3 2004 Step 9 Using number keys enter time inter val in seconds over which the leak rate test is to be performed The time interval may be from 1 to 65 000 seconds Step 10 With the desired test interval displayed press the enter key ENT At this point the HHC will return to basic pressure measurement See Sections 15 3 and 15 4 for information on perform ing leak rate testing Section 15 2 Pressure Decay Test Function Setup Step 1 With the HHC on and displaying pressure press the set up key SET UP Step 2 Using the arrow keys locate and select the words LeakRate in the set up menu When selected the words LeakRate will flash Step 3 With the words LeakRate flashing press the enter key ENT The HHC will respond by displaying Step 4 Using the left right arrow select the word Decay Step 5 With the word Decay flashing press
119. ndard HHC system consists of a base unit that acts as a host for one or two Quick Select modules The Quick Select pressure modules are interchange able and are available in a wide variety of ranges from 0 25 inches of water to 10000 psi A brief description of the main components of an HHC system follows In addition Quick Select modules are available to allow the base unit to work in conjunction with most standard RTD temperature probes and thermocouple temperature detectors Section 3 and its various subsections include all the information needed to begin using the HHC system for basic pressure and temperature measurement Higher level functions are detailed in later sections of this manual It is strongly recommended that the pertinent sections of this manual be reviewed prior to using the HHC system for higher level and application specific measurement and test activities Important Failure to follow the instructions provided in this manual may result in personal injury and or damage to the instrument accessories products under test or other equipment Section 1 3 Base Unit Overview HHC The base unit functions as the host for the Quick Select pressure and temperature modules designated in this manual by GQS prefix Each base unit includes a keypad microprocessor based electronics and a two line LCD display The base unit displays measure ment data transmitted from the Quick Select module s Measurement output
120. ngineering Units absolute differential pressure pressure 5 0 25 Psi 10 0 5 15 1 0 in ng 20 2 0 ftSW 25 3 0 Bar 30 5 0 mBar 50 10 kPa 60 15 100 25 mmHg 150 50 cmH O 200 100 mmH 0 250 150 kg cm 300 200 User Selectable 500 600 Note Engineering units identified above are 1000 accessible through the unit select feature 1500 However readout will default to the pri 2000 mary unit of measure on start up Sensor 2500 modules scaled in primary units other 3000 than in HO GQS 1 or psi GQS 2 are also 5000 available 6000 Consult factory 7500 10 000 vacuum 5 10 15 compound 25 0 125 10 0 25 15 0 5 15 30 1 0 15 60 1 5 2 5 5 0 7 5 12 5 25 50 75 100 7 88 Non isolated for clean dry gas only 75 Revision 4 6 3 2004 SYSTEM ACCURACY WITH GQS TCI THERMOCOUPLE INTERFACE TABLEI Accuracy reading in temperature units Includes the HHC base unit and 05 interface modulk Does not include inaccuracy of the thermocouple device Consult thermocouple manufacturer ISA 96 1 for hermocouple accuracy specifications Typical inaccuracies range from 1 to x2 2 C Max additional error Accuracy 9 25 Accuracy 25 due to ambient Measurement Range Ambient Not Including Ambient Including temperature deviation Internal Reference Internal Reference from 25 Exp
121. ons of case Step 13 Follow steps in Section 3 5 to reinstall the desired Quick Select pressure modules Step 14 Power unit up and down three 3 times to enable the battery backup logic Battery replacement is now complete Section 25 0 Event Timer Function The Event Timer allows for unattended data logging during a desired time period For example if it is neces sary to monitor the pressure levels of a flue or HVAC duct during a specific time period the Event Timer used in combination with the data logging function can sat isfy this requirement Delayed initiation of unattended measurement activities requires the set up of BOTH the Event Timer and data logging function Section 25 1 Event Timer Set Up To program the HHC system for delayed monitoring and data logging follow the steps below The event timer sets the starting and ending times for unattended monitoring to be performed during a future time period The Event Timer function is programmed as follows Step 1 With the HHC system on and measuring pres sure press the set up key SET UP Step 2 Using the arrow keys select the event timer designated EvntTimr option on the set up menu When selected the text EvntTimr will flash on the display Step 3 With the text EvntTimr selected and flashing on the display press the enter key ENT The HHC system will respond by displaying where HH hours in military time MM minutes 0 60 SS se
122. ons when doing airflow testing To set the HHC up to present simultaneous display of flow velocity and flow volume follow the steps below Step 1 Set the HHC up to display flow velocity or volume refer to Sections 14 2 and 14 4 for informa tion on setting up the HHC to perform flow velocity or flow volume testing In this example we will assume the HHC is starting from the simultaneous display of two flow velocity measurements In this mode the HHC display will look as follows Step 2 Using the port select key deactivate the side of the display that you wish to maintain in the current flow measurement mode In this case we will display flow in terms of ft min on the left side and ft3 min on the right side of the display PORT SEL Pressing port select once will deactivate the right side of the display from flow or pressure measurement and convert it to an mA measurement function Pressing port select a second time will deactivate the left side of the display from flow or pressure measurement converting it to an mA measurement function The right side of the display will resume flow pressure measure ment activities The second press of the port select key will result in the following data display In this example since we will be leaving the left side of the display in terms of ft min the port select key should be pressed two times to produce the display Step 3 With the desired side of the display deactivated pr
123. ould be followed In this example we will assume the operator is in the flow velocity mode and would like to present the measured values in ft min on the right side of the display and meters second on the left side of the display Step 1 With the HHC on and displaying flow velocity or volume measurement data from two Quick Select pressure modules press the engineering unit key desig nated ENG UNIT ENG UNIT When in the flow velocity mode the engineering unit selection is When in the flow volume mode the engineering unit selection is Step 2 Using the arrow keys select either of the two desired engineering units For this example we will select ft min first Step 3 With one of the two engineering units to be used selected and flashing in this example ft min press the enter key ENT The HHC will respond by returning to the flow measure ment mode and will display the measurement data as follows Revision 4 6 3 2004 Step 4 Next press port select to deactivate display of flow measurement data on the side that you wish to maintain displayed measurement data in terms of ft min A pressure display is deactivated when it is replaced by a milliamp mA Voltage V or a blank See Section 5 0 for details on the port select function In this case we have decided that the left side of the display will be in meters second and the right side will remain in ft min Pressing the port sel
124. ouple that has been installed and press the enter key ENT The display will now indicate the resolution choices Using the left or right arrow keys select the degree of resolution closest to the working tolerance for the type of thermocouple that has been installed or select the auto mode which will allow the calibrator to auto matically adjust the display to the greatest significant resolution and press the enter key ENT The calibrator will now display the choices for the refer ence junction By selecting the auto mode the calibrator will utilize the internal thermistor resistor based on the reference junction that is resident inside the interface module The manual mode allows for the use of an external reference junction A stable temperature reference usu ally in the form of an ice bath 15 required Using the left or right arrow keys select the desired reference junction and press the enter key ENT If the auto mode was selected the calibrator will now return to real time measurement mode displaying the temperature measurement from the thermocouple and reading from other module bay if module or an interface module has been installed If the manual mode was selected the calibrator must be programmed with the reference temperature of the external reference junction the display will read value may already be programmed or the calibra
125. ow be set up to provide flow volume measurement data for the desired duct To Exit Flow Volume Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Section 14 5 Engineering Units for Flow Volume As with standard pressure measurement the HHC can provide flow volume measurements in a variety of units of measure To select a unit of measure for flow velocity follow the steps below Step 1 With the HHC operating in the flow volume mode refer to Section 14 4 for instructions on entering the flow volume mode press the engineering unit key designated ENG UNIT on the keypad ENG UNIT The will respond by displaying the following These are the 6 units of measure available for display of flow volume Step 2 Using the arrow keys select the desired unit of measure When selected the unit of measure will flash In this example the engineering unit of ft3 sec unit has been selected Step 3 With the desired unit of measure flashing press the enter key ENT After pressing the enter key the HHC will resume mea suring flow volume in the selected unit of measure Section 14 6 Simultaneous Display of Two Flow Measurements in Independent Engineering Units s The HHC can display flow measurement data from two installed Quick Select pressure modules in independent engineering units In order to display two different engi neering units simultaneously the following procedure sh
126. points at a time Use the right pointing arrow to move in in creasing order from data point to data point Use the upward pointing arrow to move in increasing order 10 data points at a time Completes the collection of Found mea surement data See step 13 for continuation of process Provides the ability to discard all the Found data taken under the tag name being tested Prior to deleting the data the operator will be prompted by the query Done Redo Selecting yes will result in the deletion of the just taken as left data Step 23 After selecting Done the HHC will offer the opportunity to enter the ambient temperature at the time the Left calibration is done This is accomplished by the display of the following prompt screen To skip the logging of the temperature information select the text Skip and press the enter key ENT To capture the ambient temperature and make it part of the calibration record use the arrow keys to select the text Enter Step 24 proceed with the entry recording of the ambient temperature value with the text Enter flashing press the enter key ENT Step 25 Note If the HHC has a GQS RT 5 tempera ture module installed it will automatically offer the opportunity to store the measured value the base unit is receiving from the RTD or thermocouple If a different value is to be entered or if the
127. press enter key ENT The calibrator will respond by displaying Sd eee aus The word working flashes as the calibrator makes the necessary internal adjustment to calibrate the voltage measurement electronics to 1 0000 volts The reading must be between 0 99995 and 1 00005 for base unit to be within specification The reference check mode can be used to verify calibration accuracy After completion of the adjustments for the 1 00000 volt input the calibrator will display With 100000 volt 50 microvolts applied press enter key ENT The calibrator will respond by displaying 65 After calibrator completes auto adjusting mea sured value it will display Step 14 Using a precision voltage generator apply a 10 0000 volt 500 microvolts input to the miniature recessed banana jacks Use the COM and V jacks on the calibrator keypad Step 15 When the proper voltage is being applied press the enter key ENT The calibrator will respond by displaying After completion of the adjustments for the 10 0000 volt input the calibrator will display Step 16 Using a precision voltage generator apply a 30 0000 volt 3 millivolts input to the voltage jacks Use the COM and V jacks on the calibrator Step 17 When the proper voltage is being applied press the enter key ENT When the proper voltage is being applied press the enter key The calibrator will respond by
128. put on the right side of the calibrator when looking down at the calibrator with the keypad up in the normal operating orientation RS 232 Connector 5 4 Pins 3 2 1 2 a 0000 Pingin Funcgon 8 7 6 1 Relay common for alarm option 2 Transmit data 3 Read data 4 Datasetready 5 Ground 39 6 Data transfer ready 7 Relay 1 normally open for alarm option 8 Relay 2 common for alarm option 9 Relay 2 normally open for alarm option Section 19 1 Configuring RS232 Interface for Use with a Dumb Terminal To communicate with the HHC through the use of a dumb terminal set the terminal up as follows Select baud rate to be used 300 1200 2400 or 9600 Select communications com port 1 or 2 Set data bits to 8 Set stop bits to 2 Set parity to None Flow control None Section 19 2 RS232 Configuration Options The HHC has two communication formats for operator use These communication formats will appear as selec tion options during the set up of the RS232 interface A third mode of RS232 communication 1501745 is listed in the menu selections and is only used for up loading data stored in the optional data logging memory to a computer and factory calibration setup and repair activi ties An overview of the features of these formats follows Section 19 2 1 RS232 Interface 1501745 Operating Mode Overview The ISO1745 mode of operation is used to interface the HHC
129. raging 8 readings as shown here Step 5 With the desired level of damping shown press the enter key to store the damping level in EEPROM ENT The level of damping has now been set Proceed to Sec tion 12 2 for instructions on how the damping process is activated Section 12 2 Activating Discontinuing the Damping Function The following process provides step by step instructions on how to activate or discontinue the damping function Step 1 Once established in the set up menu the damp ing process may be enabled or disabled through the use of the DAMP key on the keypad To activate deactivate the damping function press the DAMP key on the key board DAMP In response to pressing the DAMP key the HHC will respond by displaying Step 2 Using the left or right arrow select Disable to turn damping off or Enable to initiate damping When the desired option is selected flashing press the enter key ENT On power up the HHC will default to damping disabled Damping must be re initiated via the keyboard after the instrument has been turned back on The level of damp ing established in the set up menu is stored in EEPROM and therefore does not need to be reprogrammed after power up unless the level of damping desired has changed 23 Section 13 0 Percent Function The percent function allows the calibrator to display the output from a device under test in terms of percent error at a given p
130. ral Care General instructions for unpacking and calibrator care follow Section 2 1 Unpacking Product Upon Receipt Prior to removing the HHC from the packaging material inspect all cartons for shipping damage Document any damage evident in the event that a damage claim must be made against the shipper After inspection remove the base unit module s manual and any accessories purchased from the packaging material Retain the packaging for use in returning the HHC to the factory for future recertification or repair Section 2 2 Product Storage The product should be stored in an area that is main tained in the temperature range indicated in the storage temperature in the product specification The storage temperature limits are 4 to 158 degrees Fahrenheit Storage of product in environments that will exceed these temperature limits results in significant risk of product damage Itis recommended that the product not be left in closed cars or truck cabs as temperature damage can easily occur due to the greenhouse effect of closed vehicles or extreme cold temperatures that can result from winter conditions Section 2 3 Product Cleaning The enclosure of the calibrator is not watertight As such care should be taken during cleaning to assure liquid does not penetrate the enclosure for the base unit or Quick Select modules Cleaning of the product should be done with a cloth moistened with a warm mild deter gent mixture
131. rature probe Step 4 With the side of the display to be used for flow measurement active and reading the measured pressure from a dual process connection type Quick Select pres sure module press the FLOW key FLOW Proceed as directed in Section 14 2 for flow velocity and 14 4 for flow volume measurement Note 1 The units used to express flow measurement may be changed at any time while the HHC is displaying any combination of flow and temperature measurement data Simply use the engineering unit select function as described in Section 14 2 for flow velocity and Section 14 4 for flow volume Note 2 Units for display of temperature measurement data can be changed at any time via the RTmodule menu in the setup menu of the calibrator To Exit Flow Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Section 14 9 Simultaneous Display of Flow Volume and Flow Velocity The HHC can simultaneously display flow measurement data from two installed differential low pressure Quick Select modules with one output displayed in terms of flow volume and the other pressure measurement dis played in terms of flow velocity For example the measure ment of flow can be displayed in ft min for one installed Quick Select module and ft min for the second installed Revision 4 6 3 2004 module This ability eliminates need for on the fly change between flow volume and flow velocity measure ment functi
132. re module is installed the will default to the installed pressure module for leak test measurements Section 15 4 Performing Leak Rate or Pressure Leak rate and pressure decay tests can be performed as follows Step 1 With the HHC on and reading pressure connect the pressure port of the selected pressure module to the vessel to be monitored If the pressure module incorpo rates a differential pressure sensor use the High pressure port for the test procedure Step 2 For Pressure Decay Select the desired engi neering unit to be used as described in Section 8 For Leak Rate All leak rate measurements are made in cc seconds and require no selection at this point Step 3 Pressurize the vessel to the required level for the test and allow vessel pressure to stabilize from the effects of sudden pressure increase or decrease Step 4 Press the key designated LEAK on the keypad of the LEAK The will display where Timing indicates that the HHC is timing the desired monitoring interval sec the remaining time left to be monitored eng unit the engineering unit in use for the selected module XXXXX the current pressure measured by the selected pressure module For Pressure Decay Testing at the end of the test the HHC will display the following where Eng Unit the engineering unit of the measured value current pressure measurement for the se
133. re temperature measure ment to be logged After the system has stabilized press the data store key DATA STORE The will briefly show the following information on the display each time a measurement set is logged to memory where the number of data points records and data fields used for calibration labelling information stored in this calibration data set yy percent of data logging memory allocated to stored data 1234 the measured values in the engineering units chosen Step 12 Repeat the process subjecting HHC and the device under test to the controlled pressure temperature input for each test point to be taken and store the measured values by pressing the data store key for each measurement set to be logged After last set of data to be logged has been stored HHC will prompt the operator with the following display The options available are as follows View Allows operator to scan through the stored values using the arrow keys Use the leftpointing arrow to move in decreasing order from data point to data point Use the down ward pointing arrow to move in decreasing order 10 data points at a time Use the right pointing arrow to move in increasing order from data point to data point Use the upward pointing arrow to move in increasing order 10 data points at a time Done Completes the collection of AsFound measure ment data See step 13 for
134. re value only for the active module To input a tare value for one or two Quick Select pressure mod ules follow the steps below Step 1 With the HHC on and displaying pressure mea surement data press the tare key TARE The HHC will respond by displaying the following If a tare value was previously programmed the HHC will display that value If the previous tare value was zero the HHC will display the last pressure measurement value displayed prior to pressing the TARE key Step 2 Use the number keys to input a tare value other than the default value or to change the existing tare value If no tare value is desired input zero 0 Warning Failure to enter the zero 0 will result in the HHC automatically accepting the last displayed value as the desired tare value Step 3 With the desired value displayed press the enter key ENT Step 4 Use the number keys to input a tare value other than the default value or to change the existing tare value If no tare value is desired input zero 0 21 Warning Failure to enter zero 0 will result in the HHC automatically accepting the last displayed value as the desired tare value Step 5 With the desired value displayed press the enter key ENT Note The measurement data on the display will flash if the HHC is operating in the tare mode After pressing the enter key the HHC will resume normal pressure measurement activities Tare values may be reviewed
135. rement sequence will result from press ing the PORT SELECT PORT SEL key First press of the port select key Second press of the port select key peut The sixth press of the port select key will return to the first dp screen as shown below and allow repeating the choice of available port select configurations SES IMPORTANT When static pressure is being applied to both modules at zero differential pressure press the TARE Key to eliminate any offset caused by the elevated static to optimize measurement accuracy Notes on interpreting the displayed measurement values 1 a display set up with an L R indication on one side of the display and a straight engineering unit designation on the other side of the display the value under the L R designation is the resulting valuefrom the subtraction of the right Quick Select measurement from that of the left Quick Select measurement The value on the opposite side of the display under the engineer ing unit without the L R prefix represents the pressure measurement from the Quick Select pressure module installed in the corre sponding side of the calibrator By using the port select function it is possible to read the differential pressure measurement value as well as either of the inputs independently 2 Due to the length of the engineering unit designation when the d p is expressed in a user engineering unit the L R indication will be not be present on the display The
136. res sure measurement activities Note During electrical recertification any of the calibra tion ranges may be skipped by pressing the clear entry CE key When the clear entry key is pressed during the electrical calibration process the calibrator will advance to the next electrical input in the calibration sequence Section 27 5 Recertification of Quick Select Pressure Modules The calibrator is available in a selection of accuracies from 0 1 of span through 0 025 of span covering ranges from 0 25 inches of water to 10 000 psi Whereas the calibrator can be calibrated in the field appropriate pressure standards must be used to assure the accuracy Revision 4 6 3 2004 66 of the calibrator system is not degraded by the calibra tion process As recommended by standards organiza tions such as A S M E N LS T and various U S and world government agencies calibration standards should be at least 4 times more accurate than the device to be calibrated Therefore if you will be calibrating 0 190 of span Quick Select pressure module a standard of equiva lent range would have to have an accuracy of at least 0 025 of span If the standard to be used is of a higher range than the Quick Select pressure module to be calibrated even greater accuracy is required For example if a 0 1 of span Quick Select pressure module with a range of 50 psi is to be calibrated with a 100 psi standard the calibrating standard shoul
137. ress the enter key ENT After the enter key has been pressed the HHC will resume normal pressure measurement in the original engineering units Instructions on how to use the custom engineering units are provided in the following section Section 8 3 Using Custom Engineering Unit After a custom engineering unit has been programmed it may be used by following the steps below For informa tion on programming a custom engineering unit refer to Section 8 2 Setting up a Custom or User Defined Engineering Unit To display pressure measurement data in the user engi neering unit Step 1 With HHC on measuring pressure press the engineering unit key Designated ENG UNIT on the keypad ENG UNIT The will respond by displaying first screen Step 2 Using the left right and up down arrow keys select the word user When selected the word user will flash Step 3 With the word user flashing press the enter key ENT The HHC will respond by displaying pressure measure ment data in the following display format where u_ indicates that the engineering unit in use is a user defined unit with a label of mSW XXXXXX represents the current pressure measurement s in the user engineering unit See Section 8 4 Display of Two Engineering Units for information on how to simultaneously display the mea sured values from two Quick Select pressure modules in different engineer
138. ressed Junction Expressed as C Junction Expressed as as additional C error per each C deviation from 25 240 to 201 200 to 101 100 to 999 250 to 201 200 to 101 100 to 400 250 to 201 200 to 101 100 to 400 100 to 199 200 to 499 500 to 999 1000 to 1820 250 to 226 225 to 101 100 to 1300 Conversion Factors to convert specifications to other units of measure To convert from C to F F 1 8 x C 32 To convert from C to K K C 273 15 To convert from C to R R 1 8 x C 427 67 TABLE System Accuracy based on direct millivolt reading from thermocouple includes MDI base unit and GQS TC1 interface module Does not include inaccuracy due to the thermocouple device Reference junction not applicable to direct millivolt readings Input Range of Accuracy 25 C Max additional error due to ambient temperature deviation from 25 C 10 to 100 millivolt 0 0125 millivolts Expressed as additional millivolt error per each C deviation from 25 C Revision 4 6 3 2004 76 APPENDIX D RTD PROBE CONNECTOR SWITCHCRAFT TINI QG TA4F PIN FUNCTION 2W 4W 4W 2W 2 WIRE RTD TA4F hon 3WIRE 4 1 2 4 4WIRE 4 77 Revision 4 6 3 2004 APPENDIX Certification of TC1 Thermocouple Interface Mo
139. ro and span are not reset at this time the recalibration will use the values for zero and span stored in memory from the previous Zero and span activities Step 15 Apply the full scale pressure for the Quick Select pressure module being calibrated Coming as close as possible to the full scale measure ment range of the pressure module being calibrated with the pressure applied press the enter key ENT The calibrator will respond by displaying Step 16 Using the keypad enter the exact value of the pressure applied to the Quick Select pressure module Be certain to use the engineering unit in use for the left Quick Select module when calibration activities com menced In the above example a pressure of 100 01 is being applied to the left Quick Select pressure module Step 17 With the full scale E S pressure applied and the corresponding value shown on the display press the enter key ENT The calibrator will respond by displaying Revision 4 6 3 2004 Step 18 If calibration activity is to be limited to zero and span using the arrow keys select the word No when selected word will flash on the display If lin earity adjustment is to be performed proceed to Step 21 Step 19 With the word No flashing press the enter key ENT The calibrator will respond by displaying Step 20 To save the new zero and span values to memory thereby overwriting the previously stored values in the EEPROM sel
140. s To review stored values follow the procedure below Step 1 With the HHC system on and reading pressure Revision 4 6 3 2004 50 press data log key keypad DATA LOG The HHC system will respond by displaying the follow ing THE LAST DATA LOG MENU SCREEN USED Step 2 Using the up down and right left arrows browse through the data log menu and locate the word Review The menu line with the word Review appears as To initiate the review process select the word Review using the arrow keys When selected the word Review will flash Step 3 With the word Review flashing press the enter key ENT Step 4 The HHC system will respond by displaying the last data logged value stored in memory The display of the data logged value will appear as follows where the 1 3 digit number representing the record number for the data point in the sequence of logged data 12345 stored measurement value eng is the engineering unit of the stored value time lt time pressure measurement taken when date time stamp was enabled Important Note If both the left and right pressure flow or electrical measurements are logged the HHC system will store the data from the left module or side of the display in the odd numbered records and the data from the right module or right side of the display in the even numbered records There is no stored indication of right or left mod
141. s for the subtraction or addition of the measurement value of one sensor from the measurement value of the other sensor If the calibrator was not ordered with this option it will NOT appear on the screen Step 6 As required using the left right and up down arrows select the text RTmodule The text RTmodule will flash when selected Step 7 With the text RTmodule flashing press the enter key ENT The calibrator will respond by displaying This represents the configuration of the RTD to be used where the number equals the number of wires the RTD uses Note The use of a 4 wire RTD is recommended for optimum accuracy Step 8 Using the left right arrow keys select the appro priate configuration for the RTD probe to be used In the example below the 4 wire configuration was selected Step9 With the desired wiring configuration selected press the enter key ENT The calibrator will respond by displaying the available units of measure as follows Step 10 Using the left right arrow keys select the desired engineering unit for the measurements to be made In the example here the measurements will be Revision 4 6 3 2004 34 made in degrees Celsius Step 11 With the desired engineering unit selected and flashing press the enter key ENT The calibrator will respond with the following display On initial use the first selection and the corresponding probe will appear selected Use the arrow keys
142. s from two installed Quick Select modules can be simultaneously displayed Quick Select modules for the measurement of either pres sure or temperature can be plugged into either of the 2 module bays in the base unit Pressure engineering Revision 4 6 3 2004 units can be independently selected from the library of twelve factory programmed or one operator designated engineering unit Temperature measurement data can be displayed in degrees Celsius Fahrenheit Kelvin or Rankine In addition when used with the GQS RT1 Quick Select module for temperature measurement with an RTD temperature probe the calibrator system can display the RTD measurement in ohms The GQS TC1 thermocouple interface module allows measurement of mV inputs from 10 to 100 mV In addition to displaying two pressure measurements simultaneously the operator can elect to display pressure and temperature or the measured value from either of the two installed Quick Select modules as well as either a voltage or mA measurement This allows for the easy calibration and test of pressure and temperature trans ducers transmitters and switches The base unit includes a wide variety of general and application specific measurement capabilities These capabilities allow the HHC measurement and calibration system to be used for basic pressure and temperature measurement as well as application specific pressure measurement activities Basic pressure and tempera ture measur
143. se 34 Pressure and Temperature Switch Testing 2 2 2 2424 442 35 Setting Up for Pressure and Temperature Switch 35 Trip Point I stibg e EU 35 Deadband Testing sais ite e eie ent Ue 36 9232 Interface e 37 Configuring RS232 Interface for Use With Dumb 37 RS232 Configuration Options neret de E Genio CE 37 RS232 1501745 Mode Functional 37 RS232 Journal Mode Functional Overview esee 37 RS232 Inquiry Mode Functional 38 RS232 Set Up for Journal Mode Operation 38 RS232 Set Up for Inquiry Mode Operation seen 39 Status 41 Reviewing Instrument Status ace 41 Battery Check Function e Ore pO e credent 41 4 21 0 21 1 21 2 21 3 22 0 22 1 22 2 22 3 22 4 22 5 22 6 221 22 8 23 0 23 1 24 0 24 1 242 25 0 25 1 25 2 26 0 26 1 27 0 214 27 2 27 3 27 4 27 5 Appendix A Pressure Conversion Factors Appendix B ASCII Character Set Appendix C Product Specifications Table Table Il Appendix D RTD Probe Connector Appendix E Certification of the TC1 Thermocouple Interface Module Description Dual Module Functions
144. se side of the substrate is etched to provide the required diaphragm thickness for the given pressure range When power is applied to the sensor the level of resistance across the wheatstone bridge will change in proportion to the level of pressure applied The output from the sensor is extremely repeatable and has mini mal hysteresis due to the fact that the sensor substrate is silicon The sensor output is then amplified by circuitry within the Quick Select pressure module The amplified output is then calibrated over the operating range of the module Calibration coefficients for the module are stored in Electrically Erasable Programmable Read Only Memory EEPROM within the Quick Select pressure module GQS 2 modules are available in ranges from 5 through 10 000 psi These modules can be configured to provide gauge compound or absolute pressure measurement as well as vacuum measurement capabilities GQS 2 modules in range of 5 psi are designed for use on clean dry noncorrosive and nonconductive gases 316 stainless steel sensor isolation is provided for ranges from 0 10 through 0 10 000 psi A complete listing of the available GQS 2 modules is provided in Appendix C Section 1 4 3 The GQS RT Quick Select RTD Interface Module The GQS RT1 allows the HHC base unit when used with RTD temperature probes to provide precision temperature measurement data The GQS RTI plugs directly into the Quick Select interface module bay in the base
145. se the mA and COM jacks for current devices and the V and COM jacks for voltage output devices Step 3 Make the necessary plumbing connections using a Tee fitting to allow input of applied pressure to both the HHC and the device under test Step 4 Perform testing in accordance with the number of calibration points required for the device to be tested Step 5 To exit the percent mode press the percent key The will respond by returning to basic pressure or temperature measurement activities Section 14 0 Flow Velocity Flow Volume Measurement Background The HHC used in conjunction with a pitot tube or an annubar has the ability of measuring the flow volume or flow velocity of a clean dry gas The HHC must be used in with a GQS 1 low differential pressure Quick Select module to perform the flow measurement function The accuracy of a flow measurement is a function of a number of contributing factors These are the basic accuracy of the differential pressure measurement accu racy of the pitot tube or annubar in use as it relates to the K factor supplied by the manufacturer of the device and the accuracy of the correction being made for the air density It is not possible to provide an all inclusive accuracy statement for flow measurement activities Steps that can be taken to maximize system flow mea surement accuracy include 1 Calculation and input of the actual air density for the media to be measured The
146. selected Step 3 With the word Dampen flashing press the enter key ENT Step 4 response to the activation of the dampening set up menu the HHC will respond by displaying the fol lowing Where the left most position represents zero damping averaging of 1 and the right most position represents maximum damping averaging of 16 readings Starting from the left each movement of the highlighted box to the right increases the number of samples being aver aged by one 1 By moving the highlighted field to the left the level of damping can be reduced The level of damping desired will likely vary from appli cation to application and sensor range to sensor range For best results select the minimum amount of damping necessary to provide a stable display value It is impor tant to recognize that while damping will stabilize the displayed and or transmitted value it will also slow down the response rate to a true pressure change The slow down results from fact that an averaged value will be displayed If the damping level is set to 16 the displayed value will represent the average pressure measurement over the previous 2 seconds 16 readings times 130 mS reading Therefore the greater the level of damp ing in use the greater the time lag will be between the displayed measurement and the true not averaged pres sure measurement value Use the left right arrow keys to set the desired damping level for example ave
147. sing the arrow keys select the desired stor Revision 4 6 3 2004 60 age format The desired format will flash on the display when selected In the above example the date time stamp function has been enabled and the stored data will be labeled with time date information in the database Step 9 With the desired format displayed press the enter key ENT After pressing the enter key immediately turn the HHC system off When the event timer and data log functions are set up as outlined in Section 25 the HHC system will automat ically turn itself on and make the programmed measure ments over the desired time interval At the conclusion of the programmed monitoring period the HHC system will automatically turn itself off To review logged data or perform any other data log ging functions such as data labeling or uploading to a personal computer see the main data logging section Section 22 of this manual Section 26 0 Alarm Function Overview Optional Feature Important Note This feature is not functional in FM Approved Units In order for the base unit to meet the re quirements of Class 1 Division 1 Groups A C amp D hazardous areas it was necessary to disable this function The HHC can be equipped with a set of single pole single throw SPST relays for use in triggering annun ciator lights fans sirens etc The relays have the fol lowing specifications Relay Specifications Parameter Specif
148. ssure pulsation and vibration transmitted through the measurement media The level of damping is established in the set up menu Activation of the damping process is accom plished through a dedicated key on the keypad Damping accomplishes the stabilization of the pressure measurement value by producing an averaged pressure value which is shown on the display and available for transmission over the RS232 interface When damping is Revision 4 6 3 2004 22 not activated HHC takes new pressure value every 130 to 240mS 8 times per second and updates display If required this same measurement data is also transmitted over the RS232 interface When damping is activated the value displayed and or transmitted is an average value The average consists of the average of from 1 16 consecutive readings The higher the number of readings averaged the greater the stabilization effect of the damping The number of consecutive readings averaged is programmable allow ing the damping function to be tailored to the specific requirements of most any application Section 12 1 Set Up of the Damping Function The following steps should be used to set up the level of damping desired Step 1 With the HHC on and reading pressure press the SET UP key SET UP Step 2 Using the arrow keys move through the set up menu and select on the display of the HHC The word will flash on the display when
149. surement in 12 engineering units These include psi inches of mercury inches of water feet of sea water bar mbar kilopascal megapascal millimeters of mercury centimeters of water millimeters of water and killograms per square centimeter Pressure measurement data may also be displayed in a user programmable non library engineering unit Section 8 2 Programming a Custom User Defined Engineering Unit provides complete details on setting up an operator defined engineering unit Inch centimeter and millimeter of water engineering units may be set up for conversion at temperatures of 4 degrees and 20 degrees C or 60 degrees F Consult Section 8 5 H O Reference Temperature Selection to pro gram the desired temperature for inches or centimeters of water conversions Section 8 1 Selecting a Factory Programmed Engineering Unit To select an engineering unit from the on board library follow the steps below Step 1 With the HHC and displaying pressure mea surement data press the engineering unit key This key is designated ENG UNIT ENG UNIT The HHC will respond by displaying the engineering unit library as follows first screen second screen lt The engineering unit abbreviations correspond to the following engineering units psi pounds per square inch inHg inches of mercury 2 inches of water column ftSW feet of sea water Bar bar mBar millibar kpa kiloPascals mPa
150. t data Simply use the engineering unit select function as described in Section 14 2 for flow velocity and Section 14 4 for flow volume To Exit Flow Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Section 14 8 Simultaneous Display of Measurement Data for Flow Volume or Velocity and Temperature The HHC can simultaneously display a flow measure ment from one installed Quick Select pressure module and a temperature measurement from a second installed 29 Quick Select module For example the measurement of flow can be displayed in ft min for one installed Quick Select pressure module and the second installed pres sure module can be used to simultaneously display the temperature measurement value in degrees Celsius or Fahrenheit This ability eliminates the need for on the fly change between flow and temperature measurement functions when doing airflow testing To set the HHC up to present simultaneous display of temperature and flow velocity or volume data follow the steps below Step 1 With the HHC turned off install the required differential pressure module and temperature measure ment interface module Step 2 Turn the HHC on Step 3 As outlined in Section 16 17 set up the temperature measurement function via the submenu accessed via the main Set Up menu See Section 16 or 17 for instructions on setting up the HHC for tempera ture measurement using an RTD tempe
151. t data taken during the calibration for easy generation of calibra tion certification sheets The certification generation mode of data logging will simplify calibration activities Performance of calibrations will be facilitated through operator prompts provided by the HHC when used in the enhanced certification generation mode Further the manipulation and use of calibration data is facilitated by the enhanced data labeling capability provided by this mode of operation Revision 4 6 3 2004 52 Section 23 1 Set Up and Use of Certification Generation Data Logging Mode Step 1 With the HHC on and displaying measurement data press the data log key DATA LOG The HHC will respond to the data log entry by display ing the following Std represents standard sequential data logging with out the benefit of formatting to aid in the calibration pro cess Standard data logging is most commonly used for time based data logging of processes or system controls or sampling of such things as HVAC ducts CertGen represents the Certification Generation mode of data logging This is the mode that is detailed here To review or use standard data logging refer to Section 22 of the users manual To access the CertGen capabilities use the arrow keys to highlight the text CertGen Step 2 With the text flashing press the enter key ENT The will respond by displaying The text
152. t programming cycle 15 to be applied The display will read Using the left or right arrow keys select the module to be programmed and press the enter key ENT Note If only one thermocouple interface module is installed the left right selection identified in the previ ous step will not appear The process will begin with the selection of engineering units identified below The calibrator will display Using the left or right arrow keys select the desired unit of measure and press enter Selection of the millivolt readout will instruct the calibrator to display the voltage within the thermocouple circuit The internal reference junction cannot be applied in this mode No further base unit programming will be required If Revision 4 6 3 2004 the millivolt mode has been selected the programming cycle will end when the enter key is pressed and the calibrator will begin to display the real time millivolt measurement from the thermocouple circuit ENT The top display will now indicate the choices for the thermocouple types In addition the lower line of the display will indicate the 2 types of metal which com prise the thermocouple type which is currently flashing By selecting a thermocouple type the calibrator will access the factory programmed coefficients which will allow the calibrator to display in a unit of temperature measurement Using the left or right arrow keys select the type of thermoc
153. ta points to be taken A data point consists of the pressure measurement as read on the calibrator and the current or voltage output from the device under test as measured on the calibrator Therefore each data point is actually two 2 measure ment values The prompt appears as follows The number of test points can be any value from 1 to 21 Important Note The HHC can store sufficient mea surement data to calibrate 10 devices each with 10 found and 10 as left data points corresponding to 200 test points Each test point includes both pressure temperature and electrical measurement data In addi tion to storing the measurement test data the heading or label information for each calibration is also stored in memory This information includes tag name ambient temperature found label left label and action taken Prior to initiating the calibration process the base unit will prompt the operator with a screen providing the remaining storage capacity for data in terms of number of data points If the operator enters a number of test points that exceeds the available memory the following message will be displayed Pressing any key will return the prompt requesting entry of the number of test points to be run The number of test points entered must be less than or equal to the remaining test points available Memory requirement for the calibration heading information are already factored into the
154. ted and flash ing press the enter key ENT The calibrator will briefly show internal limit settings and will then commence temperature measurement The measurement parameters can be changed at any time through the activation of the RTmodule set up menu Section 16 2 Calibrating Programming the GQS RT RTD Interface Module The GQS RT can be programmed in the field Program ming calibration adjustment or recertification can be accomplished with the Calibration Programming Utility disk Please note in order to improve the accuracy of the measurement system it will be necessary to gener ate a significant number of very accurate temperature calibration points using precision temperature baths In general the simplest way to enhance the accuracy of the temperature measurement is to simply re zero the probe while immersed in an ice bath Section 17 0 Thermocouple Interface Module The Thermocouple Interface Module allows the hand held calibrator base unit equipped with firmware version 3 01 or later to read the input from a thermocouple temperature measuring device The calibrator offers the following features for thermocouple measurement Selectable units of measure Direct millivolt readout for any type of thermocouple Choice of internal or external refernce junction Selectable resolution or auto mode Programming to allow readout in temperature units for the following 8 thermocouple types Type Materials
155. ted base unit 005 2 Pressure Types Gauge absolute compound amp vacuum Available Ranges See Chart Available Accuracies 0 025 0 05 or 0 1 of Span 0 025 amp 0 05 not available on 0 10 000 psi range Compensated Temperature Range 20 F to 120 F Temperature Effect Standard 004 of Span per F over the compen sated range from reference temperature of 70 3 Optional No additional error due to temperature over the compensated range Repeatability 0 01 of span Sensitivity 0 002 of span typical Media Compatibility 0 5 psi range only Clean dry non conductive non corrosive gas 0 10 0 10 000 psi ranges Any medium compatible with 316 SS Optional Cleaned for Oxygen Service 0 10 0 10 000 psi ranges only Overpressure Capability 200 for ranges up to 1000 psi 150 for ranges over 1000 psi Process Connection Standard 18 NPT female Optional 1 NPT female with flush port ranges 10 psi and over G British standard G British standard with flush port ranges 10 psi and over Welded VCR fitting with standard finish Other Options FM Approved for use with FM approved base unit CE Mark for use with CE Mark rated base unit TEMPERATURE INTERFACE MODULES 605 Series GQS RT1 GQS RT2 interface modules allow the PTE 1 to measure temperature with an RTD GQS RT1 Accommodates Pt100 Ni120 Cu10 and other common 2 3 or 4 wire probes w
156. tem This key has the designation DATA LOG Press ing the data log key provides access to the complete data logging set up menu DATA LOG When the data log key is pressed the HHC system will respond with one of two prompt screens If the unit is not equipped with the certification generation enhance ment the calibrator will display Line 1 Line 2 Line 3 If the HHC system is equipped with the certification gen eration data logging enhancement the response will be To perform standard sequential manual or time based data logging highlight the text Std and with it flashing on the display press the enter key ENT To access the certification generation capability of the using the right pointing arrow key highlight the text CertGen and with it flashing press the enter key ENT The up down and left right arrows can be used to choose the desired selection from the data log set up menu Information on the function of each of the above menu options follows Proceed to Section 23 of this manual for details on the certification generation mode of data logging Proceed through the balance of Section 22 for details on the use of the capabilities provided by the standard sequential data logging operation mode Revision 4 6 3 2004 Section 22 3 Labeling Function Standard Data Logging The label option allows input of alphanumeric label of up to 16 characters in length Multiple la
157. ter key ENT The will respond by displaying Using the arrow keys select the desired course of action Select None if no action is required and the device under test 15 performing satisfactorily Recal If adjustments are to be made to the device under test Repl Ifit has been determined that the tested device must be taken off line and replaced The selected entry will become part of the stored data for the calibration being done against the previously entered tag name Step 17 With the desired selection highlighted press the enter key ENT The will respond by displaying Use the arrow keys to highlight the desired selection The typical selections are Yes If recalibration is selected as the action taken Proceed to Step 18 for details on taking As Left data No If replace is selected as the action taken AsFnd If no action is taken because the device under test was found to be within specification Selecting AsFnd will result in the following com Revision 4 6 3 2004 ment being added to calibration record for device under test Use AF for AL Step 18 take Left data and store the measured values in the HHC s memory use the arrow key to high light the text under the Left data prompt screen Step 19 With the text yes flashing press the enter key ENT The will respond by displaying Step 20 Use the nu
158. the installed batteries Step 8 After installation of new batteries use the right pointing arrow key to index the bar graph to 100 Step 9 After bar graph has been refreshed press enter key ENT Note The bar graph and the estimate of the percent bat tery life remaining will now be displayed along with the Revision 4 6 3 2004 battery voltage level when the key is pressed Section 3 4 3 Low Battery Icon The HHC provides advanced warning of a low battery condition The icon which looks like a miniature battery will appear and flash in the center of the top line of the display when the measured battery voltage drops to 5 7 Vdc The calibrator will continue to function properly with the low battery icon flashing To ensure uninter rupted measurement capability it is recommended that the batteries be replaced as soon as possible after the low battery icon appears When the measured voltage drops to 5 5 the low battery icon will flash on the display and the calibrator will turn itself off after 15 seconds If the measured voltage drops to 5 4 Vdc the calibrator will not allow power up Summary of low battery warnings 5 7 Vdc Low battery icon appears 5 5 Vdc Low battery icon remains on display unit powers down after 15 seconds 5 4 Vdc Power up not allowed It is estimated that the user will have between 45 and 60 minutes of battery life remaining when the low battery icon initially
159. to select the desired coefficients from the available factory pro grammed curves The GQS RT1 is pre preprogrammed for the following RTDs Position Probe 1 0385 200 850 2 0392 2 200 850 3 Minco 1200 4 Cu 10 ohm 5 8 available for programming using the optional calibration and programming software for the GQS RT1 module Important Note The 5 is compatible with RTD probes with output resistance values of between 0 and 400 ohms Use of the module with higher resistance RTD probes will result in diminished accuracy and pos sible damage to the module electronics The GQS RT2 is pre preprogrammed for the following RTDs Position Probe 1 0385 200 850 1 1000 2 8 available for programming using the optional calibration and programming software for the GQS RT2 module Important Note The GQS RT2 is compatible with RTD probes with output resistance values of between 1000 and 4000 ohms Whereas this module will function with lower resistance RTDs accuracy will be greatly dimin ished In addition use of the module with higher resis tance RTD probes will result in diminished accuracy and possible damage to the module electronics Step 12 Using the left right arrow keys select the RTD probe type for the measurements to be made In the example here the measurements will be made in using the PT 100 type 385 Step 13 With desired probe type selected and flash ing press the enter key ENT
160. tor may display 0000 Entering a new value will over write these existing numbers Program in the new temperature value of the exter nal reference junction using the number keys on the keypad The value that is being programmed should be referenced to the same unit of measure that was selected for the readout Press the enter key ENT The calibrator will now return to the real time measurement When the base unit is turned off and turned on again it will have remembered the selections that were made during the previous entry process and default to those parameters refer to Appendix C for specifications Section 18 0 Pressure and Temperature Switch Testing The HHC can be used to test pressure and tempera ture switches On board firmware provides the ability to verify switch trip points reset point and to test the deadband of a pressure switch To perform these type of tests follow the procedures as outlined in the subsections of Section 18 The switch testing process incorporated in the HHC firmware looks for a change of state that produces a change of greater than either 2 volts or 2 mA across the corresponding miniature banana jacks The banana jacks are located on the bottom of the keypad on the HHC Prior to initiating these test procedures the required electrical set up should be configured to provide the necessary signal levels Section 18 1 Setting Up the HHC for Testing of Pressure
161. uce the desired number of linearization points Points must be in sequence low to high A maximum of 18 linearization points plus the zero and span points may be programmed for Quick Select pres sure modules Factory calibration consists of a 10 point linearization combined with a 10 point upscale and 10 point down scale linearization and hysteresis check Important Note The number of calibration points needed to assure adequate correction for non linearity is as follows Sensor Accuracy Number of Points 0 025 amp 0 05 20 including temperature 5 increments 0 025 0 07 11 1096 increments and zero 0 196 6 2096 increments and zero 0 2596 5 2596 increments and zero Step 35 When the final linearization point to be per formed has been completed press the clear entry key CE The calibrator will respond by displaying 69 Step 36 To save new linearization data to memory thereby overwriting the previously stored values in the EEPROM select Save and press enter To discard the newly generated calibration information select Cancel and press enter Step 37 If cancel is selected the calibrator will exit the calibration mode If the enter key is pressed with the word save flashing the calibrator will prompt entry of the date of the new calibration as follows Step 38 Using the number keys enter the current date such as For March 03 eleventh 11 1996 Step 39 With the desired
162. ule for the stored data values Step 5 review data logged values use the arrow keys to browse through the stored values Pressing the cor responding arrow key will result in the following action in the data log review process Key Result brings the next lowest stored address value to the display brings the next highest stored address value to the display 4 skips 10 stored values in increasing address direction skips 10 stored values in decreasing address direction brings first data point to display mA V brings last data point to display Step 6 When the review process is complete press the data log key to return to normal pressure measurement DATA LOG Section 22 7 Erasing Selected Stored Data Standard Data Logging Mode In some instances the ability to delete specific stored data points can be useful In particular this can be the case when data of questionable integrity has been stored in the data log memory The HHC system allows for the deletion of specific operator selected stored data points There are limitations to this capability These limitations are as follows 1 The remaining data will stay in the original sequence with blank data fields left where the stored data points have been deleted 2 The HHC system will not compress the data to the new smaller data set 3 The newly erased fields cannot be used for the stor age of new data values until a complete data erase h
163. unit to millivolt by pushing the right arrow button until mV is flashing Press enter While the precision millivolt calibrator source is providing OmV to the module read the mV display on base unit If the reading is within 01 millivolts the base unit TC1 system is within specification and may be certified Repeat the certification procedure at 50 and 100 mV Revision 4 6 3 2004 78 79 Revision 4 6 3 2004 Visit our web site www heise com All specifications are subject to change without notice All sales subject to standard terms and conditions Ashcroft Inc Revision 4 6 3 2004 1 amp M002 10052 11 00 HHHC MAN 1P6 00 7P10 07 250 AMR Ashcroft Inc 250 E Main Street Stratford CT 06614 5145 Tel 203 378 8281 Fax 203 381 9042 email info heise com www heise com
164. up process For most functions data transmission will resume when the set up is com plete However the RS232 interface must be re enabled via the RS232 set up process to re initiate data transmis sion after either automatic data logging or leak detection functions are activated Step 16 To select a programmable end of message character use the arrow keys to select the text Prog Step 17 With the text Prog flashing press the enter key ENT The will respond by displaying Step 18 Using the number keys enter the decimal code for the desired end of message character A list of the decimal codes for the available ASCII characters can be found in Appendix B Step 19 With the decimal representation of the desired ASCII character displayed press the enter key ENT The HHC will return to the operation of pressure mea surement and will transmit data to the terminal acquisi tion device computer or recorder as programmed While communicating engineering units may be changed or the HHC may be changed between basic pressure mea surement and flow measurement Important Note Invoking set up functions or dedicated keypad functions will temporarily suspend the transmis sion of data during the setup process For most functions data transmission will resume when the set up is com plete However the RS232 interface must be re enabled via the RS232 set up process to re initiate data transmis sion after either automatic data lo
165. with the upload program provided to export data logged values into a P C compatible computer If your calibrator is equipped with the optional data logging capability consult Section 24 of this manual and supple mental manual provided with the software package for directions on the use of the 501745 mode for data trans fer to an IBM compatible personal computer Units not equipped with the data logging option are not supplied with the upload program disk or supplemental manual Section 19 2 2 RS232 Interface Journal Mode Overview This mode allows the HHC to be interfaced to an RS232 compatible printer or other device where a steady timed data output is required When the journal mode is selected the HHC will transmit the current pressure measurement s as shown below 0 005 in H O 0 0000 psi Left Min 40 0045 0 0053 Right Min 40 0000 Max 40 0000 40 003 0 0000 psi Left Min 0 0032 0 0049 Right Min 0 0000 0 0000 Revision 4 6 3 2004 0 003 0 0000 psi Left Min 40 0033 0 0035 Right Min 40 0000 Max 0 0000 Each data set consists of three 3 lines The first line displays the current measurement data as seen on the instrument display This line will display the pressure flow temperature or electrical measurement in the selected units of measure Engineering units may be changed from the keypad as outlined in the engineering unit section of this manual Sectio
166. y displaying the following To Exit Flow Measurement and Return to Basic Pressure Measurement Press the Clear Entry Key CE Using this process any engineering unit may be selected for display of the right or left Quick Select module mea surement data Section 14 7 Simultaneous Display of Measurement Data for Flow Volume or Velocity and Pressure The HHC can simultaneously display a flow measure ment from one installed Quick Select pressure module and a pressure measurement from a second installed Quick Select Pressure module For example the mea surement of flow can be displayed in ft min for one installed Quick Select pressure module and the second installed pressure module can be used to simultaneously display the measured value in terms of inches of water This ability eliminates the need for on the fly change between flow and pressure measurement functions when doing airflow testing To set the HHC up to present simultaneous display of pressure and flow velocity or volume data follow the steps below Step 1 With the HHC on and displaying pressure measurement data from both modules if necessary select the desired engineering unit to be displayed for the pressure measurement This is done by activating the Engineering Unit library accessed by pressing the ENG UNIT key Details on engineering unit selection provided in Section 8 0 of this manual Important Note The HHC must be set up for pressur
167. ying Step 7 Enter the name of the engineering unit selected abbreviated to 6 characters or less For our example mSW is a 3 character abbreviation for meters of sea water This abbreviation will fit in the 6 digit field To enter the mSW engineering unit label use the up and Revision 4 6 3 2004 18 down arrow keys to increment decrement through alphabet numerical values and the left and right arrows to move the active entry field cursor to the next loca tion If needed for the desired engineering unit a blank can be inserted by using the down arrow with the letter A flash ing on the display Continuing to press the down arrow after the blank appears will provide access to numerical values starting at 9 and decreasing to 0 The label may contain alphabetical numerical or both types of entries To review Up down arrows provide access as follows U V W X Y Z By maintaining pressure on the up down arrow the display number or letter will continue to change until the last character has been reached By pressing and releasing the up down arrow a single increment or decrement between letters or numbers can be accomplished The left right and up down arrow keys allow for entry of letters or numbers in any of the available label positions Step 8 For this example after the engineering unit label has been keyed the display will read Step 9 With the desired engineering unit label dis played p

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