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1. 34 7 1 Replacing Balleri s da xA a X Ra EA 34 7 2 Gleaning the Unit iussus anu eee se ue RODEO RA RR A 34 7 3 Service Center Calibration or Repair _ 34 7 4 Replacement Parts amp 2222222222 eee Ru RR 34 7 5 Wartrahly sararae me nim baw uuu u RUE RR UR RR A 34 1 Introduction The Martel PTC8010 Temperature Calibrator is a handheld battery operated instrument that measures and sources temperature parameters The calibrator has the following features and functions A graphics display The display can be used to source and measure resistance temperature detectors RTDs thermocouples milli volts and resistance Athermocouple TC input output terminal with automatic reference junction temperature compensation Five setpoints in each range for increasing decreasing output An interactive menu Complete RS232 interface for remote control 1 1 Customer Service Instrumentation com a Shelby Jones Company 8800 West Chester Pike Upper Darby PA 19082 Toll Free 1 800 346 4620 office 610 446 6600 fax610 449 7010 www instrumentation com 1 2 Standard Equipment Check to see if your calibrator is complete It should include PTC8010 Calibrator Instruction Manual Test Leads Rubber Boot NIST Certificate 1 3 Safety information Symbols Used The following tabl2. Compound Commands Commands that contain more than one command on one line For example MEAS RTD RTD TYPE CU10 Sets the calibrator to measure RTD and sets RTD type to Cu 10 Overlapped Commands Commands that require more time to execute than normal The command WAI can be used after the overlapped command to tell the calibrator to wait until the command finishes before executing the next command For example TRIG WAI Triggers the pulse train Once the pulse train has been triggered the calibrator can proceed to the next command Sequential Commands Commands that are executed immediately after the are entered This type includes most of the commands 5 3 2 Character Processing The data entered into the calibrator is processed as follows ASCII characters are discarded if their decimal equivalent is less than 32 space except 10 LF and 13 CR Data is taken as 7 bit ASCII The most significant data bit is ignored Upper or lower case is acceptable 5 3 3 Response Data Types The data returned by the calibrator can be divided into four types Integer For most computers and controllers they are decimal numbers ranging from 32768 to 32768 For example ESE 140 ESE returns 140 Floating Numbers that have up to 15 significant figures and exponents For example CPRT_COEFA returns 3 908000E 03 Character Response Data CRD Data returned as keywords For example RTD_TYPE returns PT385_10 Indef
3. 0 6 2 MENU LIGHT Figure 3 Display The display of the calibrator is shown in Figure 3 The menu bar is used to setup the display to perform the desired function Table 3 explains the different parts of the display Table 3 Display Functions No Name 1 Primary Parameters Description Determine what parameter is going to be measured or sourced The available options are TC thermocouple and RTD 2 Input Output control Switches between input mode read and output mode source 3 Additional Settings Available only for TC thermocouple and RTD measurements For TC this setting turns the CUC Cold Junction Connection on and off For RTD measure RTD IN this setting sets the number of wires used in the measurement 2 wire 3 wire or 4 wire 4 Units Shows what unit the measurement or source value is in Available options are for RTD and TC C F or K 5 Sensor Types Allow for measurements to be made for different types of RTDs and TCs All types are shown in the Specifications 6 Numeric Displays Display the numeric values of the signal being measured or sourced An OU reading indicates an out of range or overload condition 7 Secondary Valve Shows the base unit Q for RTD or mV for TC 2 2 Menu Bar The parameters on the display are controlled by the menu bar which is located at the bottom of the LCD The function keys F1 F2 and F3
4. 1 0 3 80 0 0 0 0 2 0 4 0 0 100 0 0 2 0 4 100 0 300 0 0 2 0 4 300 0 400 0 0 3 0 5 400 0 630 0 0 3 0 5 630 0 800 0 0 4 0 6 PT3926 100 ohm 200 0 80 0 0 1 0 2 80 0 0 0 0 2 0 3 0 0 100 0 0 2 0 3 100 0 300 0 0 2 0 3 300 0 400 0 0 3 0 4 400 0 630 0 0 3 0 5 PT3916 100 ohm 200 0 80 0 0 1 0 2 80 0 0 0 0 2 0 3 0 0 100 0 0 2 0 3 100 0 260 0 0 2 0 3 260 0 300 0 0 3 0 4 300 0 400 0 0 3 0 4 400 0 630 0 0 3 0 5 33 RTD Type Range Accuracy Minimum Maximum Measure 4W Source Measure 3W PT385 200 ohm 200 0 80 0 0 6 0 6 80 0 0 0 0 7 0 7 0 0 100 0 0 7 0 8 100 0 260 0 0 7 0 8 260 0 300 0 0 7 0 8 300 0 400 0 0 9 0 9 400 0 630 0 0 9 1 0 PT385 500 ohm 200 0 80 0 0 2 0 3 80 0 0 0 0 3 0 3 0 0 100 0 0 3 0 3 100 0 260 0 0 4 0 4 260 0 300 0 0 4 0 4 300 0 400 0 0 4 0 5 400 0 630 0 0 5 0 5 PT385 1000 ohm 200 0 80 0 0 2 0 2 80 0 0 0 0 2 0 2 0 0 100 0 0 2 0 2 100 0 260 0 0 2 0 2 260 0 300 0 0 3 0 3 300 0 400 0 0 3 0 3 400 0 630 0 0 4 0 4 NI120 80 0 260 0 0 1 0 2 Cu10 100 0 260 0 1 3 2 5 Cu50 180 0 200 0 0 3 0 5 Cu100 180 0 200 0 0 1 0 3 YSI 400 15 0 50 0 0 1 0 1 34 7 Maintenance Warranty 7 1 Replacing Batteries Replace batteries as soon as the battery indicator turns on to avoid false measurements If the batteries discharge too deeply the PTC8010 will automatically shut down to avoid batter
5. 5 Warranty Martel Electronics Corporation warrants all products against material defects and workmanship for a period of twelve 12 months after the date of shipment Problems or defects that arise from misuse or abuse of the instrument are not covered If any product is to be returned a Return Material Authorization number must be obtained from our Customer Service Department This number must be indicated on the return package as notice to our Receiving Department to accept the shipment Any package not so marked will not be accepted and will be returned to the shipper Martel will not be responsible for damage as a result of poor return packaging Out of warranty repairs and recalibration will be subject to specific charges Under no circumstances will Martel Electronics be liable for any device or circumstance beyond the value of the product 35 MARTEL LECTRONICS 0220000 1 11 RevB To order parts and items go to www lnstrumentation com or call 800 346 4620
6. Almost all commands for the calibrator are sequential any overlapped commands will be indicated as such This section will briefly explain each of the commands and describe their general use which will include any parameters that may be entered with the command as well as what the output of the command is 5 5 1 Common Commands CLS Clears the ESR the error queue and the RQS bit Also terminates all pending operations When writing programs use before each procedure to avoid buffer overflow ESE Loads a byte into the Event Status Enable register The command is entered with a decimal number that when converted to binary enables the right bits in the Event Status Register For example ESE 133 When 133 is converted to binary it is 10000101 Bits 7 2 and 0 will be enabled ESE Returns the contents of the Event Status Enable register The value returned is a decimal For example if the register has the following settings 10000101 than the value returned will be 133 ESR Returns the contents of the Event Status Register in decimal form For example If the ESR contains 10111001 ESR will return 185 IDN Returns the manufacturer model number and firmware revision of the Calibrator For example IDN will return MARTEL PTC8010 250 1 00 OPC Enables the Operation Complete setting in the ESR This setting makes it possible to check if an operations is complete after it has been initialized For e
7. FAULT Returns the error code number of an error that has occurred The command may be entered when the previous command did not do what it was meant to do Refer to the Error Codes table for more information on error code numbers FUNC Returns the current mode of the display For example if the calibrator is set to RTD FUNC Would return RTD LOCAL Restores the calibrator to local operation if it was in remote mode Also clears LOCKOUT if the unit was in lockout mode MEAS Sets the display to measure mode The command is followed by the parameters TC for thermocouple or RTD for RTD For example MEAS RTD sets the display mode to RTD IN OUT Sets the output of the calibrator This command may be used to output mA volts frequency temperature and ohms The calibrator is automatically set to source mode when OUT is entered A number and its unit must follow the command See Table 7 Parameter Units for a list of available units For example OUT 10 sets the calibrator to RTD or TC OUT mode and sets the output to 10 OUT Returns the output of the calibrator Using the above example OUT Would return 1 000000E 02 REMOTE Puts the calibrator in remote mode From the remote mode the user can still use the keypad to get back to local unless the command LOCKOUT was entered before REMOTE Than the keypad is totally locked out and the user has to send the LOCAL command to get back to local operation
8. Menu is the next menu if you are in source mode Its options are AUTO FUNC NEXT and DONE AUTO FUNC allows you to adjust the Automatic Output Function parameters NEXT proceeds to the next menu level and DONE returns to the home menu See Section 4 2 Using the Automatic Output Functions AUTO FUNC NEXT DONE The contrast menu is usually the next menu level Its options are CONTRAST NEXT and DONE The CONTRAST option is used to adjust contrast NEXT proceeds to the auto off main menu and DONE returns to home menu Contrast is adjusted using the arrow options which are available after choosing CONTRAST NOTE The PTC8010 calibrator offers a wide range contrast adjustment feature to accommodate operation in extreme temperatures In certain cases making large changes in contrast may render the display difficult to read under normal conditions If this occurs and the display is too dim or dark to read proceed with the following process to set the contrast back to a default setting 1 Turn on the unit while holding down the HOME key 2 Hold the key down for a count of 10 seconds to restore contrast default settings If the display is so dim that you cannot tell if the unit is on or off use the backlight key to determine if the power is on or off CONTRAST NEXT DONE The auto off main menu contains the options AUTO OFF NEXT and DONE The AUTO OFF option is used to turn the automatic shutof
9. and at its TC input terminal Note CJC off mode should only be used when calibration is being done using an external ice bath To use the thermocouple to measure temperature follow these steps 1 Attach the thermocouple leads to the TC miniplug and insert the plug into the input output of the calibrator as in Figure 7 Note For best accuracy wait 2 to 5 minutes for the temperature between the miniplug and the calibrator to stabilize before any measurements are taken 2 Select the CONFIG option from the main menu 3 Select TC from the primary parameters Choose IN in the input output control and then the thermocouple type from the sensor types The temperature unit may also be changed from Celsius to Fahrenheit or Kelvin The calibrator can also measure the mV signal from a Thermocouple which can be used along with a table in case the corresponding TC type is not supported by the calibrator To do SO proceed as above and choose mV from sensor types TC PLUG Note The TC wire used must match the thermocouple type being calibrated A MEASURE SOURCE A Tc aw Figure 7 Measuring Temperature Using Thermocouple Terminals 3 3 2 Using Resistance Temperature Detectors RTDs The supported types of RTDs are shown in Section 6 Specifications RTDs are characterized by their 0 C resistance RO The calibrator accepts two three and four wire inputs with four wire input being the m
10. are used to navigate through all the levels and choices of the menu bar Refer to the menu tree for a clarification on the layout of all the levels The top level of the menu is the home menu It can be accessed anytime by pressing the HOME key There are two variations of the home menu the input home menu and the output home menu In the input home menu the only active options are MENU and LIGHT The MENU option is used to enter the next level of the menu bar the main menu Press the corresponding function key F1 to enter the main menu The LIGHT option is used to turn on the LCD back light Press the corresponding function key F2 to turn on the back light MENU LIGHT In the output home menu there are three active options MENU LIGHT and STEP or RAMP The first two options work the same as in the input home menu The third option is selectable in the Auto Function Menu and is used to turn on and off the selected auto function See Section 4 2 Using the Automatic Output Functions Also leaving this menu or pressing the Home button will stop the auto functions MENU LIGHT STEP The next level of the menu bar is the main menu The levels under the main menu depend on what mode the calibrator is in The main menu has two active options CONFIG and MORE Choosing CONFIG calls up the parameter selection menu MORE enters the next menu level CONFIG MORE The Auto Function
11. the main menu and choose thermocouple TC from the primary parameters 3 Choose output OUT from the input output control 4 Select the desired thermocouple type from the sensor types 5 Enter the temperature using the keypad TC OUT WEEE CJC ON CJ 25 5 C 0 0 C MENU LIGHT STEP MEASURE SOURCE A x aw mn o Figure 10 Connections for Outputting RTDs 4 4 Sourcing Ohms RTDs To source an RTD follow these steps 1 Select the CONFIG option from the main menu and choose RTD from the primary parameters 2 Choose output OUT from the input output control and select RTD type from the sensor types 3 Connect the calibrator to the instrument being tested as in Figure 14 4 Enter the temperature or resistance using the keypad Use stackable x Lemmer ig test leads for OH ig w shared connections w ASO 3W 4W u S ww 4 8 p4 1 4 1 3 2 2 Figure 11 Using a 3 or 4 wire Connection for RTDs RTD OUT P200 385 200 0 Q 0 0 C MENU LIGHT 15 Note The calibrator simulates a 2 wire RTD To connect 3 or 4 wire transmitter use stacking cables as shown in Figure 15 4 4 1 Custom RTD A custom curve fit PRT may be entered into the calibrator for sourcing and measuring To do so follow these steps Select the CONFIG o
12. 96 will flash and the setpoint is stored Repeat these steps entering 100 C and holding the Function Key that corresponds to 100 Use the F2 key to step in either 25 or 1096 increments 13 4 2 Using the Automatic Output Functions There are two automatic output functions step and ramp The selected function can be turned on and off using the Output Home Menu The Automatic Output Function parameters can be set in the Auto Function Menu Parameters include 1 Which auto function will be available Step or Ramp 2 The Auto Function Time time between steps for step and time to get from over one limit to the next for ramp 3 Step Size the step size can be set to either 10 or 25 The limits for the ramp and step functions are set to the 0 and 10096 values See Section 4 1 Setting 0 and 10096 Output Parameters Steps are in either 1096 or 2596 increments from the 0 value to the 10096 value TC PLUG A MEASURE SOURCE A aw Note TC wire used must match the thermocouple type being calibrated Figure 9 Connections for Outputting Thermocouples 4 3 Sourcing Thermocouples To source a thermocouple use the following steps 1 Connect the thermocouple leads to the appropriate polarized TC miniplug and insert the plug into the TC terminals on the calibrator as shown in Figure 13 2 Select the CONFIG option from
13. MARTEL LECTRONICS PTC8010 Reference Manual moo MENU LIGHT RAMP PTC8010 Reference Manual 1 Introduction scsrrrarss 3 1 1 Customer se sie ih css vL Re Ai il Ai gd al 3 1 2 Standard Equipment 4 264 246 LR LEER ERR RR ERE Read dra Ma Ra 3 1 3 Safety information EE 4 2 Calibrator Interface amaa 6 2 Main EMS EEN uis are en 7 2 2 Menu Bar GAP EO aS eS A TE RR RR 8 2 3 Cursor control Setpoint control 11 3 3 Measuring Temperature ee 12 4 Using Source Modes 13 4 1 Setting 0 and 100 Output Parameters 13 4 2 Using the Automatic Output Functions 14 4 8 Sourcing Thermocouples illl Ea 14 4 4 Sourcing Ohms RTDs EE EEN E NEEN ed 15 5 Remote Operation n 16 5 1 Setting up the RS 232 Port for Remote Control 17 5 2 Changing Between Remote and Local Operation 18 5 3 Using COMMANOS EE 18 5 4 Remote Commands and Error Codes ccc hn 22 59 Entering ele EENS 24 6 Specifications 31 7 Maintenance Warranty
14. RTD TYPE Sets the RTD type The following is a list of RTD types they way they should be entered after the command PT385 10 85 50 PT385 100 85 200 PT385 500 PT385 1000 PT392 100 PTJIS 100 Ni120 Cu10 Cu50 Cu100 400 OHMS CUSTOM For example TYPE PT385 10 sets RTD type to Pt385 10 RTD TYPE Returns the RTD type RTD WIRE Sets the number of wires used for connection in measuring RTDs The calibrator measures RTDs using 2 3 and 4 wire connections After the command enter 2W for 2 wire 3W for 3 wire and 4W for 4 wire For example RTD WIRE 4W sets the connection to 4 wire RTD WIRE Returns the number of wires used in the RTD connection TEMP UNIT Sets the temperature unit for sourcing and measuring RTD and TC Add CEL after the command for Celsius FAR for Fahrenheit or KEL for Kelvin For example TEMP UNIT CEL sets the temperature to be measured or sourced to Celsius TEMP UNIT Returns the temperature unit that is currently used for measuring and sourcing RTD and TC TSENS TYPE Sets the temperature sensor type to thermocouple or to RTD for temperature measurement After the command add TC for thermocouple or RTD for RTDs For example TSENS TYPE TC sets the sensor type to thermocouple TSENS TYPE Returns the type of sensor that is currently set to measure temperature either TC or RTD 29 30 VAL Returns the value of any measurement taking place on the dis
15. ate the calibrator Remove test leads from the calibrator before you open the battery door Inspect the test leads for damaged insulation or exposed metal Check test leads continuity Replace damaged test leads before you use the calibrator When using the probes keep your fingers away from the probe contacts Keep your fingers behind the finger guards on the probes Connect the common test lead before you connect the live test lead When you disconnect test leads disconnect the live test lead first Do not use the calibrator if it operates abnormally Protection may be impaired When in doubt have the calibrator serviced Do not operate the calibrator around explosive gas vapor or dust Disconnect test leads before changing to another measure or source function When servicing the calibrator use only specified replacement parts To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears IN Caution To avoid possible damage to calibrator or to equipment under test Use the proper jacks function and range for your measurement or sourcing application 2 Calibrator Interface Figure 1 shows the location of the input and output connections on the calibrator while Table 1 describes their use 6 E MEASURE SOURCE A TC 9999 OOo OOO H 2 58 Figure 1 I
16. ate the calibrator or use a Windows terminal such as Hyper Terminal to enter single commands Typical RS 232 remote configurations are shown in Figure 16 COM PORT USB PORT Optional RS 232 or USB Cable See section 7 4 Figure 12 Calibrator to Computer Connection 5 1 Setting up the RS 232 Port for Remote Control Note The RS 232 connection cable should not exceed 15m unless the load capacitance measured at connection points is less than 2500pF Serial parameter values 9600 baud 8 data bits 1 stop bit no parity Xon Xoff EOL End of Line character or CR Carriage Return or both To set up remote operation of the calibrator on the Windows Hyper Terminal connected to a COM port on the PC as in Figure 23 use the following procedure 1 amp Start Hyper Terminal located in Accessories Communications of the Windows Start menu Select New Connection For Name enter PTC8010 Select the serial port that the unit is connected to Enter the above information for port settings Select ASCII setup from File Properties Settings and mark these choices Echo typed characters locally Wrap lines that exceed terminal width Select Ok To see if the port works enter IDN This command will return information on the unit 17 5 2 Changing Between Remote and Local Operation There are three modes of operation of the calibrator Local Remote and Remote wit
17. ber setting used in the RTD mode TEMP UNIT Sets input output temperature unit for RTD and TC TEMP UNIT Returns the temperature unit for RTD and TC TSENS TYPE Sets temperature sensor type TSENS TYPE Returns temperature sensor type VAL Returns the measured values Table 7 Parameter units Units Meaning MV Voltage in millivolts V Voltage in volts Ohms Resistance in Ohms Cel Temperature in Celsius Far Temperature in Fahrenheit Kel Temperature in Kelvin Error Number Table 8 Error codes Error Description 100 A non numeric entry was received where it should be a numeric entry 101 Too many significant digits entered 102 Invalid units or parameter value received 103 Entry is above the upper limit of the allowable range 104 Entry is below the lower limit of the allowable range 105 A required command parameter was missing 107 An invalid CJC STATE was received 108 An invalid TSENS_TYPE was received Error Number Error Description 110 An unknown command was received 111 An invalid RTD or TC parameter value was received 112 The serial input buffer overflowed 113 Too many entries in the command line 114 The serial output buffer overflowed 115 Output is overloaded 24 5 5 Entering Commands Commands for the calibrator may be entered in upper or lower case There is at least one space required between the command and parameter all other spaces are optional
18. e lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual Symbol Description Alternating Current AC DC Battery MA CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the Users Manual Important Information Off OPPOIPO On Canadian Standards Association o c a The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used Use the calibrator only as specified in this manual otherwise injury and damage to the 4 calibrator may occur Warning To avoid possible electric shock or personal injury Do not apply more than the rated voltage See specifications for supported ranges Follow all equipment safety procedures Never touch the probe to a voltage source when the test leads are plugged into the current terminals Do not use the calibrator if it is damaged Before you use the calibrator inspect the case Look for cracks or missing plastic Pay particular attention to the insulation surrounding the connectors Select the proper function and range for your measurement Make sure the battery cover is closed and latched before you oper
19. ers The characters are processed on a first in first out basis 21 5 4 Remote Commands and Error Codes The following tables list all commands and their descriptions that are accepted by the calibrator Table 5 Common Commands Command Description CLS CLS Clear status Clears the ESR the error queue and the RQS bit in the status byte Terminates pending Operation Complete commands ESE Loads a byte into the Event Status Enable register ESE Returns the contents of the Event Status Enable register ESR Returns the contents of the Event Status register and clears the register IDN Identification query Returns the manufacturer model number and firmware revision level of the Calibrator OPC Enables setting of bit 0 OPC for Operation Complete in the Event Status Register to 1 when all pending device operations are complete OPC Returns a 1 after all pending operations are complete This command causes program execution to pause until all operations are complete RST Resets the state of the instrument to the power up state This command holds off execution of subsequent commands until it is complete SRE Loads a byte into the Service Request Enable register SRE Returns the byte from the Service Request Enable register STB Returns the status byte WAI Prevents further remote commands from being executed until all previous remote c
20. f on and off and set the amount of time the unit needs to stay dormant to shut off NEXT and DONE both return to home menu AUTO OFF NEXT DONE When the calibrator is in CUSTOM mode the RTD custom setup menu is inserted after the main menu Options SET CUSTOM NEXT and DONE are available SET CUSTOM is used to enter a custom PRT into the calibrator Refer to Section 4 1 8a for instructions NEXT is used to enter the contrast main menu and DONE to return to the home menu SET CUSTOM NEXT DONE The parameter selection menu is called up when CONFIG is selected from the main menu It contains the following options SELECT NEXT and DONE When the display is selected a parameter will start to flash Use the SELECT option to change the parameter and the NEXT option to switch to another variable DONE returns to the home menu and enables the selected mode SELECT NEXT DONE 2 3 Cursor control Setpoint control The output value can be controlled by the four cursor control arrows on the keypad By pressing one of the arrows a cursor will be added to the display under the last digit of the output value The left and right arrow keys are used to select which decade to be changed in the output value The up and down arrow keys are used to increase decrease or ramp the output value The menu bar will change to the setpoint menu with the to
21. g a bit to 1 enables the corresponding bit in the ESR and setting it to O disables the corresponding bit Cleared at power reset Bit assignments for the ESR and the ESE respectively are shown below 15 14 13 12 11 10 9 8 0 0 0 0 0 0 0 0 PON 0 EXE DDE QYE 0 OPC PON Power On Set to 1 if power was turned on and off before the Event Status Register was read CME Command Error Set to 1 when the calibrator receives an invalid command Entering an unsupported RTD type may cause such an error EXE Execution Error Set to 1 when the calibrator runs into an error while executing is last command A parameter that has too significant figures may cause such an error DDE Device dependent Error Set to 1 when for example the output of the calibrator is overloaded QYE Query Error OPC Operation Complete Set to 1 when the calibrator has finished executing all commands before the command OPC was entered Error Queue If an error occurs due to invalid input or buffer overflow its error code is sent to the error queue The error code can be read from the queue with the command FAULT The error queue holds 15 error codes When it is empty FAULT returns 0 The error queue is cleared when power is reset or when the clear command CLS is entered Input Buffer Calibrator stores all received data in the input buffer The buffer holds 250 charact
22. h Lockout Local mode is the default mode Commands may be entered using the keypad on the unit or using a computer In Remote mode the keypad is disabled and commands may only be entered using a computer but choosing GO TO LOCAL from the menu on the calibrator display will restore keypad operation In Remote with Lockout the keypad can not be used at all To switch modes proceed as follows 1 To enable Remote mode type in the serial command REMOTE at the computer terminal 2 To enable Remote with Lockout type in REMOTE and LOCKOUT in either order 3 To switch back to local operation enter LOCAL at the terminal This command also turns off LOCKOUT if it was on For more information on commands refer to the Remote Commands section 5 3 Using Commands 5 3 1 Command types Refer to the Section on Remote Commands for all available commands The calibrator may be controlled using commands and queries All commands may be entered using upper or lower case The commands are divided into the following categories Calibrator Commands Only the calibrator uses these commands For example RTD tells the calibrator to measure RTD Common Commands Standard commands used by most devices These commands always begin with an For example IDN tells the calibrator to return its identification Query Commands Commands that ask for information They always end with For example FUNC Returns the current modes of the calibrator
23. inite ASCII IAD Any ASCII characters followed by a terminator For example IDN returns MARTEL PTC8010 250 1 00 19 20 5 3 4 Calibrator Status Status registers enable registers and queues provide status information on the calibrator Each status register and queue has a summary bit in the Serial Poll Status Byte Enable registers generate summary bits in the Serial Poll Status Byte The following is a list of registers and queues along with their function Serial Poll Status Byte STB The STB is sent when the calibrator responds to the STB command Figure 24 demonstrates how it functions Cleared when power is reset Service Request Enable Register SRE Enables or disables the bits of the STB Cleared when power is reset Setting bits to 0 disables them in the STB Setting the bits to 1 enables them Bit assignments for the SRE and the STB are shown below 0 MSS ESB 0 EAV 0 0 0 MSS Master Summary Status Set to 1 when ESB or EAV are 1 enabled Read using the STB command ESB Set to 1 when at least one bit in ESR is 1 EAV Error Available An error has been entered into the error queue and may be read using the Fault command Event Status Register ESR A two byte register in which the lower bits represent conditions of the Calibrator Cleared when read and when power is reset Event Status Enable Register ESE Enables and disables bits in the ESR Settin
24. nput Output Terminals Mi Table 1 Input and Output Terminals No Name Description 1 TC input output Terminal for measuring or simulating thermocouples Accepts miniature polarized thermocouple plugs with flat in line blades spaced 7 9 mm 0 312 in center to center 2 3 Source Measure Terminals for sourcing and measuring RTDs 4 5 Measure RTD 3W 4W Terminals for performing RTD measurements with 3 wire or 4 wire setups 6 Serial port Connects calibrator to a PC for remote control Figure 2 shows the location of the keys on the calibrator Table 2 lists the functions of each key O ei G 9 Figure 2 Keypad Table 2 Key Functions No Name Function 1 Function Keys F1 F2 F3 Used to operate the menu bar at the bottom of the calibrator display F1 is used for selecting options in the left box F2 for the center box and F3 for the right box 2 Home Returns to home menu on the menu bar 3 Power Turns calibrator on and off Cursor Control Key Left and right arrow keys are used to select which decade to be changed in output value Up and down arrow keys are used to increase decrease or ramp output value 5 Numeric Keypad Allows user to enter Numeric values 2 1 Main Display 3 P _ _RTD IN 4W P100 385 ou 100 00 91 7 O 0
25. om RTD For example CPRT COEFC 5 8019E 12 enters 5 8019e 12 as coefficient A CPRT COEFC Returns the number which was entered for the first coefficient of the polynomial used in the custom RTD Using the example above CPRT COEFC Would return 5 801900E 12 CPRT MIN T Sets the minimum temperature of the custom RTD range The temperature value must be entered with a degrees label CEL for Celsius and FAR for Fahrenheit For example CPRT MIN T 260 CEL enters 260 C as the minimum temperature CPRT MIN T Returns the value entered for minimum temperature in the range for a custom RTD Note that the Calibrator always returns numbers in scientific notation The above example would return 2 600000E 02 CEL CPRT MAX T Sets the maximum temperature of the custom RTD range The temperature value must be entered with a degrees label CEL for Celsius and FAR for Fahrenheit For example CPRT MAX T 0 0 CEL enters 0 0 C as the maximum temperature CPRT_MIN_T Returns the value entered for minimum temperature in the range for a custom RTD The above example would return 0 000000E 00 CEL CPRT_RO Sets the 0 resistance RO in the custom RTD The value must be entered with a units label Refer to the Parameter Units table for assistance For example CPRT_RO 100 OHM sets RO to 100 ohms CPRT RO 27 28 Returns the value for the resistance in custom RTD The above example would return 1 000000 02 OHM
26. ommands have been executed Table 6 Calibrator Commands Command Description CAL START Puts the calibrator in calibration mode CJC STATE Turns CJC on or off CJC STATE Returns the state of the CJC CPRT COEFA Sets the custom RTD coefficient A CPRT COEFA Returns the custom RTD coefficient A CPRT COEFB Sets the custom RTD coefficient B CPRT COEFB Returns the custom RTD coefficient B CPRT COEFC Sets the custom RTD coefficient C CPRT COEFC Returns the custom RTD coefficient C CPRT MIN T Sets the custom RTD minimum temperature CPRT MIN T Returns the custom RTD minimum temperature CPRT MAX T Sets the custom RTD maximum temperature CPRT MAX T Returns the custom RTD maximum temperature CPRT RO Sets the custom RTD RO resistance CPRT RO Returns the custom RTD RO resistance 22 Command Description FAULT Returns the error code of an error that has occurred FUNC Returns the current mode of the calibrator LOCAL Returns user to manual operation of the calibrator LOCKOUT Locks out the keypad of the calibrator and allows for remote operation only MEAS Sets the mode for measuring of the calibrator OUT Sets the output of the calibrator OUT Returns the output of the calibrator REMOTE Puts the calibrator in remote mode RTD TYPE Sets the RTD type RTD TYPE Returns the RTD type RTD WIRE Sets the number of wires used by the RTD mode RTD WIRE Returns the wire num
27. ost accurate To use the RTD option apply the following steps 1 Select the CONFIG option from the main menu 2 Select RTD from the primary parameters Select IN from input output control 3 Choose 2 or 4 wire connection 2W 3W 4W 4 wire allows for the most precise measurement 4 Select RTD type from the sensor types 5 Attach RTD leads as shown in Figure 8 RTD IN 4W P100 385 100 00 Q 0 0 C MENU LIGHT Figure 8 Measuring Temperature with RTD Connection Resistance can also be measured using this function To do so use the above procedure and choose OHMS from the sensor types This option can be used along with a table to measure an RTD which is not programmed into the calibrator 4 Using Source Modes The calibrator can generate calibrated signals for testing and calibrating process instruments It can source resistances and the electrical output of RTD and thermocouple temperature sensors 4 1 Setting 0 and 100 Output Parameters To set the 0 and 100 points use the following steps 1 Select the CONFIG option from the main menu and choose the desired primary parameter Select output OUT from the input output control and enter the desired value For example select RTD OUT Enter 0 C with the keypad and press Enter Press any one of the four cursor control arrows to display the setpoint control menu Hold down the Function Key that corresponds to 096 F1 0
28. play For example if the display is measuring 10 then VAL will return 1 000000E 01 10 C 6 Specifications One year at 23 5 C unless specified otherwise Outside of this range the stability of the measurements is 0 005 of reading C Table 9 General Specifications Operating Temperature 10 C to 50 C Storage Temperature 20 C to 70 C Power 4 X AA batteries Alkaline or optional rechargeable Low battery warning Yes Serial Communications Yes ASCII CE EMC EN61326 2006 ANNEX B Criterion A Safety CSA C22 2 No 1010 1 1992 Table 10 Resistance Measurement Ohms low Range 0 0092 400 0 2 Accuracy of reading floor 0 025 0 050 Ohms high 401 00 4000 00 0 025 0 50 Table 11 Resistance Source Range Excitation Current Accuracy of reading floor Ohms low 5 00 400 00 1 0 5mA 0 025 0 19 5 0Q 400 00 0 5mA 0 025 0 050 Ohms high 4000 15000 0 05mA 0 8mA 0 025 0 5 2 15009 40000 0 05mA 0 4mA 0 02596 0 5Q Note Unit is compatible with smart transmitters and PLCs Frequency response is lt 5ms Table 12 Thermocouple Measurement Source Range Accuracy of reading floor Read mV 10 000mvV 75 000mV 0 02 10uV Source mV 10 000mvV 75 000mV 0 02 10uV Maximum current output in voltage
29. ption from the main menu Select RTD and set sensor type 1 to CUSTOM Enter the RTD custom setup main menu and select SET CUSTOM Using the keypad enter the values that the calibrator prompts for minimum temperature maximum temperature RO and the values for each of the temperature coefficients The custom function uses the Calendar Van Dusen equation for outputting and measuring custom RTDs The coefficient C is only used for temperatures below 0 C Only A and B coefficients are needed for the range above 0 so coefficient C should be set to The RO is the resistance of the probe at 0 C The coefficients for PT385 PT3926 and PT3616 are shown in Table 4 below Table 4 RTD Coefficients RTD Range C RO Coefficient A Coefficient B Coefficient C PT385 260 0 100 3 9083x10 3 5 775x10 7 4 183x10 12 PT385 0 630 100 3 9083x10 3 5 775x10 7 PT3926 Below 0 100 3 9848x10 3 5 87x10 7 4x10 12 PT3926 Above 0 100 3 9848x10 3 5 87x10 7 916 Below 0 100 3 9692 10 3 5 8495 10 7 4 2325 10 12 916 Above 0 100 3 9692 10 3 5 8495 10 7 5 Remote Operation The calibrator can be remotely controlled using a PC terminal or by a computer program running the calibrator in an automated system It uses an RS 232 serial port connection for remote operation With this connection the user can write programs on the PC with Windows languages like Visual Basic to oper
30. ranges is 1mA with an output impedance of lt 12 31 Table 13 Thermocouple Read and Source errors in C Range Accuracy C TC Type Minimum Maximum CJC OFF CJC ON J 210 0 0 0 0 4 0 6 0 0 800 0 0 2 0 4 800 0 1200 0 0 3 0 5 K 200 0 0 0 0 6 0 8 0 0 1000 0 0 3 0 5 1000 0 1372 0 0 5 0 7 T 250 0 0 0 0 6 0 8 0 0 400 0 0 2 0 4 E 250 0 100 0 0 6 0 8 100 0 1000 0 0 2 0 4 R 0 0 1767 0 1 2 1 4 S 0 0 1767 0 1 2 1 4 B 600 0 800 0 1 2 1 4 800 0 1000 0 1 3 1 5 1000 0 1820 0 1 5 1 7 C 0 0 1000 0 0 6 0 8 1000 0 2316 0 2 3 2 5 XK 200 0 800 0 0 2 0 4 BP 0 0 800 0 0 9 1 1 800 0 2500 0 2 3 2 5 L 200 0 0 0 0 3 0 5 0 0 900 0 0 2 0 4 U 200 0 0 0 0 5 0 7 0 0 600 0 0 3 0 5 N 200 0 0 0 0 8 1 0 0 0 1300 0 0 4 0 6 CJC error outside of 23 5 C is 0 05 C C 32 Table 14 RTD Read and Source RTD Type Range Accuracy Minimum Maximum Measure 4W Source Measure 3W PT385 10 ohm 200 0 80 0 1 3 2 5 80 0 0 0 1 3 2 5 0 0 100 0 1 4 2 7 100 0 300 0 1 5 3 0 300 0 400 0 1 6 3 1 400 0 630 0 1 8 3 3 630 0 800 0 1 9 3 6 PT385 50 ohm 200 0 80 0 0 3 0 5 80 0 0 0 0 4 0 7 0 0 100 0 0 4 0 7 100 0 300 0 0 4 0 7 300 0 400 0 0 5 0 7 400 0 630 0 0 5 0 8 630 0 800 0 0 6 0 9 PT385 100 ohm 200 0 80 0 0
31. sation CJC on or off when the calibrator is in thermocouple TC mode The command is used by adding ON or OFF after it For example CJC STATE OFF turns CJC off CJC STATE Tells whether the Cold Junction Compensation in thermocouple mode is turned on or turned off The calibrator returns OFF if CJC is off and ON if CJC is on CPRT COEFA This command is used for entering a custom RTD into the calibrator The numeric value entered after the command will be set as the first coefficient of the polynomial used by the custom RTD For example CPRT COEFA 3 908E 03 enters 3 908e 3 as coefficient A CPRT_COEFA Returns the number which was entered for the first coefficient of the polynomial used in the custom RTD Using the example above CPRT_COEFA Would return 3 908000E 03 CPRT_COEFB This command is used for entering a custom RTD into the calibrator The numeric value entered after the command will be set as the second coefficient of the polynomial used by the custom RTD For example CPRT COEFB 5 8019E 07 enters 5 8019e 7 as coefficient B CPRT COEFB Returns the number which was entered for the first coefficient of the polynomial used in the custom RTD Using the example above CPRT COEFB Would return 5 801900E 07 CPRT COEFC This command is used for entering a custom RTD into the calibrator The numeric value entered after the command will be set as the first coefficient of the polynomial used by the cust
32. uch of any one of the four arrow keys 0 25 100 The three function keys are associated with 0 25 and 100 values respectively 0 and 10096 values can be stored by entering a value and then holding down the corresponding function key The 25 key will then automatically step through the 2596 values Home Menu MENU LIGHT Selection Menu CONFIG MORE Parameter Selection If calibrator is in SELECT NEXT DONE Source mode Home Menu MENU LIGHT Auto Function Menu AUTO FUNC NEXT DONE If calibrator is in RTD CUSTOM mode RTD Custom Menu SET CUSTOM NEXT DONE Contrast Menu CONTRAST NEXT DONE Auto Off Menu AUTO OFF NEXT DONE Home Menu MENU LIGHT Figure 4 The Menu Tree 11 3 3 Measuring Temperature TC IN TYPEK CJC ON 24 9 C 3 3 1 Using Thermocouples The calibrator supports the following thermocouple types B J K L N R S U and XK The characteristics of all the types are described in Specifications section 5 C The calibrator also has a Cold Junction Compensation function Normally this MENU uer function should be ON and the actual MENU LIGHT temperature of the thermocouple will be measured With CJC OFF the calibrator will measure the difference between the thermocouple at the junction
33. xample this operation could be used with the command TRIG OPC Returns 1 when all operations are complete and causes program execution to pause until all the operations are complete For example TRIG OPC will return a 1 when the pulse train initiated by TRIG is complete RST Resets the state of calibrator to the power up state All subsequent commands are held off until the execution of the command is complete SRE Loads a byte into the Service Request Enable register A decimal number must be entered which when converted to binary corresponds to the correct settings For example SRE 8 enters the binary number 00001000 to the SRE This enables bit 3 Bit 6 is not used SRE Returns a byte from the SRE The byte is returned in decimal format For example If 40 is returned bits 5 and 3 are enabled STB Returns the status byte in decimal form from the Serial Poll Status Byte For example If 72 is returned bits 6 and 3 are enabled WAI Prevents further remote commands from being executed until all previous commands are executed For example OUT 100 C WAI OUT 200 C will output 100 C and wait until output settles then the second output command will be processed 25 26 5 5 2 Calibrator Commands CAL START Puts the calibrator in calibration mode The main display will say CALIBRATION MODE and a calibration menu will be displayed on the terminal CJC STATE Turns Cold Junction Compen
34. y leakage Note Use only AA size alkaline batteries or optional rechargeable battery pack 7 2 Cleaning the Unit Warning To avoid personal injury or damage to the calibrator use only the specified replacement parts and do not allow water into the case Caution To avoid damaging the plastic lens and case do not use solvents or abrasive cleansers Clean the calibrator with a soft cloth dampened with water or water and mild soap 7 3 Service Center Calibration or Repair Only qualified service personnel should perform calibration repairs or servicing not covered in this manual If the calibrator fails check the batteries first and replace them if needed Verify that the calibrator is being operated as explained in this manual If the calibrator is faulty send a description of the failure with the calibrator Be sure to pack the calibrator securely using the original shipping container if it is available To return the product to Martel go to www martelcalibrators com and click on the Customer Service link Download the RMA form and follow the instructions Calibration procedures and other related documents can also be found on the website 7 4 Replacement Parts amp Accessories 80029 JKTE T C Wire Kit Mini Plugs 80036 RSNB T C Wire Kit Mini Plugs CC572 Carrying Case C232SJ RS232 Cable with Miniature Plug 1919896 USB RS232 Converter Cable with Miniature Plug 5353050 48 Stackable Testleads 1001 9V Battery Adapter Charger 7
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