Beta-Martel MC
Contents
1. 2 Switch to either upper or lower display from the Main Menu 3 Select PRESSURE from the primary parameters 4 Select the desired measuring unit 5 Zero the pressure module The zero function on the calibrator can be found in the pressure zeroing menu PRESSURE ES VALVE lero ADAPTER gt MARTEL MC1200 700mA na PRESSURE MODULE FI E J 5 ZO OO O Figure 9 Connections for Measuring Pressure 3 4 1 Zeroing with Absolute Pressure Modules To zero adjust the calibrator to read a known pressure such as barometric pressure To adjust the calibrator follow these steps L Enter the pressure zeroing menu 2 Select ZERO SET REFERENCE ABOVE will appear Enter the pressure using the keypad 3 The calibrator stores the Barometric zero offset in non volatile memory The zero offset is stored for one absolute pressure module at a time If a new absolute module is connected this process must be repeated PRESSURE psi PRESSURE mbar MENU LIGHT 15 4 Using Source Modes Lower Display 16 The calibrator can generate calibrated signals for testing and calibrating process instruments It can source voltages currents resistances frequencies pulses and the electrical output of RTD and thermocouple temperature se2. D oa On circuit board Figure 10a 17 4 4 Simulating a Transmitter To have the calibrator supply a variable test current to a loop in place of a transmitter follow these steps 1 Select lower display from the Main Menu 2 Choose mA simulation from the primary parameters mA 2W SIM and enter the desired current 3 Connect the 24V loop as shown in Figure 11 Figure 11 Connections for Simulating a Transmitter mA IN 25 00 ___0 000 mA mA 2W SIM 4 000 mA MENU LIGHT 4 5 Sourcing volts To source volts follow these steps 1 Select lower display from the Main Menu 2 Choose VOLTS from the primary parameters Switch to input output control and select output OUT Connect the leads for the voltage source terminals as shown in Figure 12 Enter the voltage using the keypad Figure 12 Connections for Sourcing Voltage and Frequency 18 mA LOOP 25 00 ___0 000 mA 6 000 V MENU uem l 4 6 Sourcing frequency To source a signal use these steps oO e w NE Switch to the lower display and select frequency from the primary parameters Select output and than choose the frequency units Connect the leads to the frequency output terminals as shown in Figure 12 Enter the desired frequency using the keypad To change the amplitude select FREQ LEVEL from frequency level menu Enter the amplitude 4 7 Sourcing a pulse train
3. 0 052 Ohms high 401 09 4000 02 0 025 0 52 Table 14 Resistance Source Range Excitation Current Accuracy of reading floor Ohms low 5 09 400 02 0 1mA 0 5mA 0 025 0 12 5 0Q 400 0Q 0 5mA 3mA 0 025 0 052 Ohms high 4009 15002 0 05mA 0 8mA 0 025 0 52 15009 40002 0 05mA 0 4mA 0 025 0 5Q Note Unit is compatible with smart transmitters and PLCs Frequency response is lt 5ms Table 15 Thermocouple Measurement Source Range Accuracy of reading floor Read mV 10 000mV 75 000mV 0 02 10uV Source mV 10 000mV 75 000mV 0 02 10uV Maximum current output in voltage ranges is 1mA with an output impedance of lt 1 46 Table 16 Thermocouple Read and Source errors in C TC Type Range C Accuracy J 210 0 0 0 0 4 0 0 800 0 0 2 800 0 1200 0 0 3 K 200 0 0 0 0 6 0 0 1000 0 0 3 1000 0 1372 0 0 5 T 250 0 0 0 0 6 0 0 400 0 0 2 E 250 0 100 0 0 6 100 0 1000 0 0 2 R 0 0 1767 0 1 2 S 0 0 1767 0 1 2 B 600 0 800 0 1 2 800 0 1000 0 1 3 1000 0 1820 0 1 5 E 0 0 1000 0 0 6 1000 0 2316 0 2 3 XK 200 0 800 0 0 2 BP 0 0 800 0 0 9 800 0 2500 0 2 3 ll 200 0 0 0 0 25 0 0 900 0 0 2 TC
4. PRESSURE mA and mA 2W SIM Input Output control Switches the lower display between input mode read and output mode source Additional Settings Available only for TC thermocouple and RTD measurements For TC this setting turns the CJ C Cold J unction 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 Span Indicator Available only for mA and mA LOOP Shows where in the preset span the measured value falls Fixed for mA at 4 0 and 20 100 Units Shows what unit the measurement or source value is in Available options are for RTD and TC C or F and for FREQ and PULSE CPM Hz or KHz Sensor Types Allow for measurements to be made for different types of RTDs and TCs All types are shown in the Specifications Also dis plays the amplitude of the pulse and frequency source and pressure units Numeric Displays Display the numeric values of the signal being measured or sourced An Ol reading indicates an out of range or overload condition 2 2 Men u 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 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
5. An invalid TSENS_TYPE was received 109 Pressure module not connected 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 35 Error Number Error Description 114 The serial output buffer overflowed 115 Output is overloaded 116 Calibrator not in pulse train mode when TRIG was received 117 An invalid FREQ_TYPE was received 36 7 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 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 7 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
6. Local Remote and Remote with 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 atall 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 7 3 Using Commands 7 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 LOWER_MEAS DCV tells the calibrator to measure voltage on the lower display 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 a Fo
7. Section 4 1 Setting 0 and 100 Output Parameters Steps are in 25 increments from the 0 value to the 100 value 4 3 Sourcing mA To source a current follow these steps 1 From the Main Menu select lower display LOWER Choose mA from the primary parameters 2 Switch to input output control and select output OUT Connect the leads to the mA terminals as shown in Figure 10 Enter the desired current using the keypad 1000 ohms max Figure 10 Connections for Sourcing Current mA LOOP 25 00 ___0 000 mA mA OUT 9 000 mA MENU LIGHT 4 3 1 HART Resistor Selection The MC1200 can be set up so that the 250 ohm resistor required for Hart configuration devices resides inside the MC1200 Enabling the MC1200 s internal 250 ohm resistor eliminates the need to manually add a series resistor during a Hart calibration process NOTE When the MC1200 s internal 250 resistor is enabled maximum load driving capability drops from 1000 ohms 20mA to 750 ohms 20mA Enable Disable Procedure 1 Remove the battery cover and remove the 2 screws that are at the top of the case 2 Remove the 2 screws on the bottom or lower portion of the case 3 4 Figure 10a shows the location of the Hart jumpers Gently remove the top half of the case from the bottom HART Resistor
8. The calibrator can produce a pulse train with an adjustable number of pulses at a desired frequency For example setting the frequency to 60Hz and the number of pulses to 60 would produce 60 pulses for a period of 1 second To source a pulse use the same connection as for frequency and proceed as follows 1 Switch to the lower display and select pulse from the primary parameters 2 Choose the desired unit and enter the frequency using the keypad 3 Select the COUNTS function from the home menu to enter the number of pulses Use TRIG to start and stop the signal 4 The amplitude of the pulse can be adjusted in the same manner as for frequency mA LOOP 25 00 mA IN 25 00 PULSE 5 0 Vpp FREQ OUT 5 0 Vpp MENU TRIG COUNTS MENU LIGHT 0 0 KHZ 4 0 kHz 19 TC PLUG MEASURE SOURCE 3 v Te mA MEASURE mA v O Loo aw h Mii mA Note TC wire used must match the thermocouple type being calibrated Figure 13 Connections for Outputting Thermocouples 4 8 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 lower display from the Main Menu and choose thermocouple TC from the primary parameters Choose output OUT from the inp
9. either TC or RTD UPPER_MEAS Sets the measuring mode for the upper display After the command enter DCI for mA DCI_LOOP for mA with loop power DCV for volts and PRESSURE for pressure For example UPPER_MEAS DCV sets the upper display to measure volts U_PRES_UNIT Sets the unit for measuring pressure on the upper display Add the unit after the command The available pressure units and their syntax are shown in Table 7 Parameter Units For example U_PRES_UNIT MMHG sets the pressure unit to millimeters of mercury at 0 C VAL Returns the value of any measurement taking place on the upper and lower display For example if the upper display is measuring 5mA and the lower display is measuring 10V then VAL will return 5 000000E 03 A 1 000000E 01 V ZERO_MEAS Zeroes the attached pressure module Enter the zeroing value in PSI after the command when zeroing an absolute pressure module ZERO _MEAS Returns the zero offset or the reference value for absolute pressure modules 8 Specifications All measurements apply at 23 C 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 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 EN50082 1 199
10. mA SIM Returns the output of the current simulation With the example above the output would be 5 000000E 03 A TC_TYPE Sets the type of the thermocouple All available types are shown in the TC Types table in Section 8 Specifications For example TC_TYPE B sets thermocouple type to B TC_TYPE Returns the type of thermocouple the calibrator is set to TEMP_UNIT Sets the temperature unit for sourcing and measuring RTD and TC Add CEL after the command for Celsius and FAR for Fahrenheit 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 TRIG Starts and stops the pulse train when the calibrator is in pulse mode The parameters of the pulse train are set by commands PULSE _CNT and FREQ LEVEL Entering TRIG initializes the train Entering the command while the pulse train is running stops it TRIG Returns TRIGGERED if the pulse train is running and returns UNTRIGGERED when the pulse train is not running Returns NONE when the calibrator is not in pulse mode 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 43 44 TSENS_TYPE Returns the type of sensor that is currently set to measure temperature
11. the PC with Windows languages like Visual Basic to operate the calibrator or use a Windows terminal such as Hyper Terminal to enter single commands Typical RS 232 remote configurations are shown in Figure 23 COM PORT MARTEL mc1200 AS oes SSI SS Figure 23 Calibrator to Computer Connection 7 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 27 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 Start Hyper Terminal located in Accessories Communications of the Windows Start menu Select New Connection For Name enter ASC 300 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 6 Select Ok 7 To see if the port works enter IDN This command will return information on the unit Cl 29 7 2 Changing Between Remote and Local Operation There are three modes of operation of the calibrator
12. the following O 000 M thermocouple types B C E J K L N R S T IO U BP and XK The characteristics of all the TC IN CJC OFF types are described in Specifications section 0 L o The calibrator also has a Cold J unction Compensation CJ C function Normally this Menul LIGHT function should be ON and the actual MENU LIGHT temperature of the thermocouple will be measured With CJ C OFF the calibrator will measure the difference between the thermocouple atthe junction and at its TC input terminal Note CJ C 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 Switch to lower display from Main Menu 3 Select TC from the primary parameters Choose IN in the input output control and than the thermocouple type from the sensor types The temperature unit may also be changed from Celsius to Fahrenheit The calibrator can also measure the mV of 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
13. type Range C Accuracy U 200 0 0 0 0 5 0 0 600 0 0 25 N 200 0 0 0 0 8 0 0 1300 0 0 4 All TC errors include CJ C errors CJ C error outside of 23 5 C is 0 05 C C In C add 2 for cold junction compensation error Table 17 RTD Read and Source RTD Type Range C Accuracy Ni120 672 80 0 260 0 0 2 Cul0 100 0 260 0 1 4 Cu50 180 0 200 0 0 4 Cul00 180 0 200 0 0 3 YSI400 15 00 50 00 0 1 Pt100 385 200 0 100 0 0 2 100 0 300 0 0 3 300 0 600 0 0 4 600 0 800 0 0 5 Pt200 385 200 0 100 0 0 8 100 0 300 0 0 9 300 0 630 0 1 0 Pt500 385 200 0 100 0 0 4 100 0 300 0 0 5 300 0 630 0 0 6 Pt1000 385 200 0 100 0 0 2 100 0 300 0 0 3 300 0 630 0 0 4 Pt385 10 200 0 100 0 1 4 100 0 300 0 1 6 300 0 600 0 1 8 600 0 800 0 2 0 Pt385 50 200 0 100 0 0 4 100 0 300 0 0 5 300 0 600 0 0 6 600 0 800 0 0 7 Pt100 3926 200 0 100 0 0 2 100 0 300 0 0 3 300 0 630 0 0 4 Pt100 3916 200 0 100 0 0 2 100 0 300 0 0 3 300 0 630 0 0 4 Read Accuracy is based on 4 wire input For 3 wire input add 0 059 assuming all three RTD leads are matched 47 9 Maintenance Warranty 48 9 1 Replacing Batteries Replace batteries as soon as the battery indicator turns on to avoid false measurements If the batteries discharge too deeply the MC1200 will automatically shut down to avoid battery leakage Note Use only AA size alkaline batteries or optiona
14. 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 shutoff 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 lower display is in the frequency or pulse mode the frequency level menu is added after the main menu The options available in this menu are FREQ LEVEL NEXT and DONE The FREQ LEVEL option is used to adjust the amplitude of the wave NEXT is used to access the contrast main menu and DONE returns to the home menu FREQ LEVEL NEXT DONE When the calibrator is in RTD 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 pressure zeroing main menu is the final variation to choosing MORE in the main menu Ithas the options ZERO used to zero pressure NEXT and DONE which have the same function as above Refer to the Section 5 3 for instructions on zeroing ZERO 2 NEXT DONE The parameter selection menu is called up when UPPER or LOWER is s
15. 0E 03 Character Response Data CRD Data returned as keywords For example RTD_TYPE returns PT385_10 Indefinite ASCII IAD Any ASCII characters followed by a terminator For example IDN returns MARTEL ASC300 250 1 00 7 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 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 powe
16. 100 is required for pressure measurement Note Pressure is not read from modules with frequency or pulse train mode enabled Note On high pressure modules engineering units normally associated with low pressure ranges such as inH O cmH 0O etc are not valid selections Selecting one of this units with a high pressure module attached will cause the display to read Warning To avoid a violent release of pressure in a pressurized system shut off the valve and slowly bleed off the pressure before you attach the pressure module to the pressure line Caution To avoid mechanically damaging the pressure module never apply more than 10 ft lb of torque between the pressure module fittings or between the fittings an the body of the module To avoid damaging the pressure module from overpressure never apply pressure above the rated maximum printed on the module To avoid damaging the pressure module from corrosion use it only with specified materials Refer to the pressure module documentation for material compatibility To measure pressure follow these steps 1 Connect the pressure module to the calibrator as shown in Figure 9 using the 700mA pressure module adapter The calibrator can measure pressure on both the upper and the lower display This makes it possible to measure pressure in two different units at the same time Note Make sure the calibrator is on before you plug in the pressure module
17. 2 and EN55022 1994 Class B Safety CSA C22 2 No 1010 1 1992 Table 10 DC Voltage Measurement Source Range Accuracy of reading floor Read Isolated Upper Display 0 000V 30 000V 0 015 2mV Read non Isolated Lower Display 0 000V 20 000V 0 015 2mV Source 0 000V 20 000V 0 015 2mV Maximum current output in voltage ranges is 3mA with an output impedance of lt 1Q Table 11 DC mA Measurement Source Range Accuracy of reading floor Read Isolated Upper Display 0 000mA 24 000mA 0 015 2uA Read non Isolated Lower Display 0 000mA 24 000mA 0 015 2uA Source 0 000mA 24 000mA 0 015 2uA Maximum load on mA source is 10002 Voltage input range on simulate mode 5V 30V Table 12 Frequency Measurement Source Range Accuracy of reading floor Read 2 0CPM 600 0CPM 0 05 0 1CPM 1 0Hz 1000 0Hz 0 05 0 1Hz 1 00KHz 10 00KHz 0 05 0 01KHz Source 2 0CPM 600 0CPM 0 05 1 0Hz 1000 0Hz 0 05 1 00KHz 10 00KHz 0 125 Input voltage amplitude range on frequency is 1V to 20V zero based square wave only Output amplitude is adjustable from 1V to 20V and is a square wave with 50 duty cycle For output frequency a slight negative offset of approximately 0 1V is present to assure zero crossing 45 Table 13 Resistance Measurement Range Accuracy of reading floor Ohms low 0 00Q 400 02 0 025
18. 21 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 C so coefficient C should be set to 0 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 PT3916 Below 0 100 3 9692x10 3 5 8495x10 7 4 2325x10 12 PT3916 Above 0 100 3 9692x10 3 5 8495x10 7 5 Using Isolated Measure Modes Upper Display 22 5 1 Measuring volts and mA Use the following steps to measure the voltage or current output of a transmitter 1 2 Select the upper display from the Main Menu Select the desired primary parameter to be measured Connect the leads to the isolated inputs of the calibrator as in Figure 16 MEASURE SOURCE MEASURE Figure 16 Isolated Input Connection 5 2 Measuring current with loop power To test a 2 wire loop powered transmitter that is disconnected from w
19. B 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 custom 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 t
20. 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 MC1200 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 example 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
21. MARTEL Aa tae MC1200 Reference Manual IN TROQUCON 43 54 20ijc0te ct na AL an a4 3 1 1 CUSTOMER SENICE ico dace che datar aaa ale a a RR Dia 3 1 2 Standard EQUIPMENE a rtica rita tara ata dba AR xed tt ed RL A RA 3 1 3 Safety VATU ath a sssi aaa aa aa aa a aa Ta a a at catia wn ac ak nt aad See ad wt nd dt ne OCR HC 4 Calibrator Interface 0 0c ee 6 2 1 Main Display cascos ira da dd a ada E ie ed dh 7 2A Men Ba a a aa a ea ae ae 8 2 3 Cursor Control Setpoint Control yssgara risanata desis eta a EEEE 11 Using Measure Modes Lower Display 0 0 00 e ee ee 12 3 1 Measuring Volts and Frequency 0 ces 12 3 2 Measunng M 244 014 aa a aaa a saa aa aa BAe etd ddd ae 12 3 3 Measuring Temperature 0 ce tee 13 3 4 Measuring PresSure 6 tee 14 Using Source Modes Lower Display oooccoconccco eee 16 4 1 Setting 0 and 100 Output Parameters nasua aaua 16 4 2 Using the Automatic Output Functions 0 0 0 0 es 16 4 3 SOUNCING MA o e nen amaia tt v ena A eS be ee SS ee 16 4 3 1 HART Resistor Selection 1 0 00 17 4 4 Simulating a Transmitter 20 ee eee eee eens 18 A 5 Sourcing Volts fc acc iisa a a a A a IASI 18 4 6 Sourcing Frequency 0 0 ccc ee eee eee tee ene teens 19 4 7 Sourcing a Pulse Train tas c4 yaa da a ee 19 4 8 Sourcing Thermocouples ccc ccc eee teen EEEE enn 20 4 9 Sourcing OhmS RTDS seet sac ada aa a ae See Ve se 21
22. Note The TC wire used must match the thermocouple type being calibrated Figure 7 Measuring Temperature Using Thermocouple Terminals 3 3 2 Using Resistance Temperature Detectors RTDs The supported types of RTDs are shown in Section 8 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 most accurate To use the RTD option apply the following steps ie Switch to lower display LOWER from Main Menu 2 Select RTD from the primary parameters Select IN from input output control 13 3 Choose 2 3 or 4 wire connection 2W 3W 4W 4 wire allows for the most precise measurement Select RTD type from the sensor types Attach RTD leads as shown in Figure 8 mA IN 25 00 ___Q 000 mA RTD IN 4W P10 385 4W Org O 0 O 29 0 C menu uer 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 3 4 Measuring Pressure 14 Note The Martel Pressure Module connector 700mA needs to be purchased to connect pressure module to calibrator Note The MC1200 is compatible with BETA Calibrator Pressure Modules The accessory BPPA
23. URE dl MODULE MARTEL E mco Figure 18 Measuring Pressure Transmitter Note On high pressure modules engineering units normally associated with low pressure ranges such as inH O cmH 0O etc are not valid selections Selecting one of this units with a high pressure module attached will cause the display to read 24 6 Using the Upper and the Lower Display for Calibration and Testing 6 1 Testing an Input or Indicating Device To test and calibrate actuators recording and indicating devices using the source functions follow these steps 1 Select the lower display and choose the correct primary parameter 2 Switch to OUT in the input output control 3 Connect the leads to the instrument and the calibrator as shown in Figure 19 MN 1 mA max current Figure 19 Connections for Testing an Output Device 6 2 Calibrating an I P Device The following steps show how to calibrate a device that controls pressure 1 Select upper display from the Main Menu and select pressure from the primary parameters 2 Switch to lower display from the Main Menu and select current source mA out from the primary parameters 3 Connect the calibrator to the device as shown in Figure 20 The calibrator will simulate the transmitter current and m
24. Using Isolated Measure Modes Upper Display 000 eee o 22 5 1 Measuring Volts and M asas aaas ac aaia ee 22 5 2 Measuring Current with Loop Power 0 0 cece eee 22 5 2 1 HART Resistor Selection 0 0 ee 23 5 3 Measuring Pressure aatras tte 23 Using the Upper and the Lower Display for Calibration and Testing 25 6 1 Testing an Input or Indicating Device 1 es 25 6 2 Calibrating an I P Device carrii sce cade sbi d dbase ates aa 25 6 3 Calibrating a Transmitter 2 1 ees 26 6 4 Calibrating a Pressure Transmitter 0 0 eee eens 26 s Remote Operation sia bane geen idee ab Ae adhe eee ate mee ee A 27 7 1 Setting up the RS 232 Port for Remote Control 0 0 eee 27 7 2 Changing Between Remote and Local Operation 0 0 0 c eee eee 28 7 3 Using COMMANGS esoxtrsinrrra sarao da dade de ld a deter dle e 28 7 4 Remote Commands and Error Codes ocooccccccc 32 7 5 Entering Commands 0 00 tts 36 SPECIFICATIONS dida ee Bee i ete pat ba ead Mh ba ded oe Pas 45 Maintenance Warranty 0 00 cee ee 48 1 Introduction The Martel MC1200 Multifunction Process Calibrator is a handheld battery operated instrument that measures and sources electrical and physical parameters The calibrator has the following features and functions e A dual display The upper display is used for the measurement of volts current and pressure The lower display can be used to meas
25. ame 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 4 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 4 6 2 3 MENU LIGHT Figure 3 Display The display of the calibrator shown in Figure 3 is divided into three main sections the upper display the lower display and the menu bar The upper display is used for measuring dc voltage dc current with and without loop power and pressure The lower display can be used for both measuring and sourcing The menu bar is used to setup both the upper and the lower display to perform the desired function Table 3 explains the different parts of the display No Name Primary Parameters Table 3 Display Functions Description Determine what parameter is going to be measured or sourced The available options for the upper display are VOLTS IN PRESSURE mA IN and mA LOOP The available options for the lower display are VOLTS TC thermocouple RTD FREQ frequency PULSE
26. brator is in If calibrator is in it calibrator is i Frequency Out RTD CUSTO ka ral poe or Pulse mode mode ressure mode y Frequency Level RTD Custom Menu Pressure Zeroin FREQ LEVEL NEXT DONE SET CUSTOM NEXT DONE ZERO NEXT DONE Home Menu Home Menu Home Menu MENU LIGHT MENU LIGHT MENU LIGHT Contrast Menu CONTRAST NEXT DONE Auto Off Menu AUTO OFF NEXT DONE Home Menu MENU LIGHT Figure 4 The Menu Tree 11 3 Using Measure Modes Lower Display 3 1 Measuring volts and frequency Electrical parameters volts and frequency can be measured using the lower display To make the desired measurements follow these steps 1 Switch to the lower display LOWER from Main Menu 2 Select the desired parameter for measurement 3 Connect leads as shown in Figure 5 VOLTS IN ___ 0 000 V VOLTS IN 9 000 V MENU LIGHT Figure 5 Measuring Volts and Frequency with Input Output Terminals 3 2 Measuring mA To measure mA follow these steps 1 Switch to lower display and select mA 2 Make sure the input output control is set to IN 3 Connect leads as shown in Figure 6 mA IN 25 00 0 000 mA 5 000 mA MENUT LIGHT Figure 6 Measuring mA with Input Output Terminals 12 3 3 Measuring Temperature mA IN 25 00 3 3 1 Using Thermocouples The calibrator supports
27. cessory BPPA 100 is required for pressure measurement Note Pressure is not read from modules with frequency or pulse train mode enabled 23 Warning To avoid a violent release of pressure in a pressurized system shut off the valve and slowly bleed off the pressure before you attach the pressure module to the pressure line Caution To avoid mechanically damaging the pressure module never apply more than 10 ft lb of torque between the pressure module fittings or between the fittings an the body of the module To avoid damaging the pressure module from overpressure never apply pressure above the rated maximum printed on the module To avoid damaging the pressure module from corrosion use it only with specified materials Refer to the pressure module documentation for material compatibility To measure pressure follow these steps 1 PEN Connect the pressure module to the calibrator as shown in Figure 18 The calibrator can measure pressure on both the upper and the lower display This makes it possible to measure pressure in two different units atthe same time Note Make sure the calibrator is on before you plug in the pressure module Switch to either upper or lower display from the Main Menu Select PRESSURE from the primary parameters Selectthe desired measuring unit Zero the pressure module The zero function on the calibrator can be found in the pressure zeroing menu VALVE PRESS
28. d actions that may pose hazards to the user e 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 VAN 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 itis 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 operate 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
29. e upper pressure unit VAL Returns the measured values ZERO_MEAS Zeros the pressure module ZERO_MEAS Returns the zero offset of the pressure module 34 Table 7 Parameter units Table 8 Error codes Units Meaning MA milliamps of current MV Voltage in millivolts V Voltage in volts CPM Frequency in cycles per minute Hz Frequency in Hertz KHz Frequency in kiloHertz Ohms Resistance in Ohms Cel Temperature in Celsius Far Temperature in Fahrenheit Psi Pressure in pounds per square inch InH204C Pressure in inches of water at 4 C InH2020C Pressure in inches of water at 20 C CmH204C Pressure in centimeters of water at 4 C CmH2020C Pressure in centimeters of water at 20 C Bar Pressure in bars Mbar Pressure in millibars KPal Pressure in kiloPascals InHg Pressure in inches of mercury at 0 C MmHg Pressure in millimeters of mercury at 0 C Kg cm2 Pressure in kilograms per square centimeter Error Number 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 106 An invalid pressure unit was received 107 An invalid CJ C_STATE was received 108
30. easure the output pressure 4 Entera current using the keypad L MARTEL MC1200 Fl F2 F3 o LY a 25 920 q ary 8 9 CE a D O Q E de mE Su m m IN la Es a a a e Y i Figure 20 Calibrating an I P Device 25 26 6 3 Calibrating a Transmitter To calibrate a transmitter both the upper and the lower displays will be used one for measuring and the second a source This section covers all but the pressure transmitters A thermocouple temperature transmitter is used in this example The following steps show how to calibrate a temperature transmitter 1 2 4 5 From the Main Menu select upper display and choose current loop mA LOOP Switch to lower display from the Main Menu and select TC from the primary parameters Choose output OUT from the input output control and select TC type Set the 0 and 100 span points using the keypad and the 0 and 100 keys refer to Setting 0 and 100 Parameters section Connect the calibrator to the transmitter as shown in Figure 21 Test transmitter at 0 25 50 75 100 using the 25 step function 25 key Adjust the transmitter a necessary To calibrate a different transmitter follow the above steps with the exception of ch
31. ed 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 49 MARTEL LECTRONICS www martelcorp com e mail sales martelcorp com Tel 603 434 1433 800 821 0023 Fax 603 434 1653 Martel Electronics 3 Corporate Park Dr Derry NH 03038 5 09 RevG 0219114
32. elected 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 touch 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 100 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 25 values Home Menu MENU LIGHT Selection Menu UPPER LOWER MORE Parameter Selection If calibrator is in SELECT NEXT DONE Source mode Home Menu __ MENU LIGHT Auto Function Menu AUTO FUNC NEXT DONE If cali
33. emperature 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 Returns the value for the resistance in custom RTD The above example would return 1 000000E 02 OHM 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 For example if a value for current output is entered that is bigger than the supported range 0 24mA FAULT Would return 39 40 103 which is the code number for an entry over range Refer to the Error Codes table for more information on error code numbers FREQ LEVEL Sets the amplitude of the wave used in the Frequency Out and Pulse modes The range for amplitude entered may be found in the Specifications section For example FREQ LEVEL 5 V sets the amplitude at 5Vpp FREQ LEVEL Returns the amplitude of the wave used in Frequency Out and Pulse modes FREQ LEVEL with the above example would return 5 000000E 00 V FREQ TYPE When in fr
34. equency mode sets the calibrator to output a continuous wave Frequency Out or a pulse train To set the calibrator to continuous wave enter CONT after the command To set the calibrator to pulse enter PULSE after the command For example FREQ_TYPE CONT will set the calibrator to FREQ OUT Note This command does not put the calibrator in frequency mode Use the OUT command to put the calibrator in frequency mode FREQ TYPE Tells whether calibrator is sourcing a pulse or a continuous wave The command will return CONT if the calibrator is in FREQ OUT mode and PULSE if the calibrator is in PULSE mode FREQ UNIT Sets the unit for frequency There are three ranges of frequencies for frequency and pulse modes CPM cycles per minute Hz and kHz Use this command to select the right range For example FREQ UNIT HZ sets the frequency to Hz range FREQ UNIT Returns the frequency unit currently being used by the frequency and pulse modes FUNC Returns the current mode of the upper and lower displays For example if the calibrator is set to volts on the upper display and pressure on the lower display FUNC Would return DCV PRESSURE LOCAL Restores the calibrator to local operation if it was in remote mode Also clears LOCKOUT if the unit was in lockout mode LOWER_MEAS Sets the lower display to measure mode The command is followed by any of the parameters except for pulse and mA sim which are source only Enter DCI
35. for mA DCV for volts TC for thermocouple RTD for RTD FREQUENCY for frequency and PRESSURE for pressure For example LOWER_MEAS DCV sets the lower display mode to VOLTS IN L_PRES UNIT Sets the unit for measuring pressure on the lower display Add the unit after the command The available pressure units and their syntax are shown in the Table 7 Parameter Units For example L_PRES_UNIT KPAL sets the pressure unit to kiloPascals OUT Sets the output of the calibrator This command may be used to output mA volts frequency temperature and ohms Frequency output which is set by the command FREQ _TYPE is either continuous or pulse 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 MA sets the calibrator to mA OUT mode and sets the output to 10mA OUT Returns the output of the calibrator Using the above example OUT Would return 1 000000E 02 A PRES Returns the model and serial number of the attached pressure unit Returns NONE if no pressure unit is attached For example PRES Will return MARTEL 001PNS 3 0 PRES_UNIT Returns the pressure units of both the upper and the lower display For example if the unit on the upper display is bars and on the lower it is psi the command will return BAR PSI 41 42 PULSE_CNT Sets the number of pulses the calibra
36. in doubt have the calibrator serviced Do not operate the calibrator around explosive gas vapor or dust When using a pressure module make sure the process pressure line is shut off and depressurized before you connect it or disconnect it from the pressure module Disconnect test leads before changing to another measure or source function e 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 To avoid a violent release of pressure in a pressurized system shut off the valve and slowly bleed off the pressure before you attach the pressure module to the pressure line A 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 To avoid mechanically damaging the pressure module never apply more than 10 ftlb of torque between the pressure module fittings or between the fittings an the body of the module To avoid damaging the pressure module from overpressure never apply pressure above the rated maximum printed on the module To avoid damaging the pressure module from corrosion use it only with specified materials Refer to the pressure module documentation for material compatibility e e e 2 Calibrator Interface Figure 1 shows the location of the i
37. iring use the loop power function This function activates a 24V supply in series with the current measuring circuit To use this option proceed as follows 1 2 Select mA LOOP as primary parameter in the upper display Connect the calibrator to transmitter current loop terminals as shown in Figure 17 onic a oF NAS y z D Ba Figure 17 Connection Using Current Loop mA LOOP 25 00 0 000 mA 0 001 mA MENU LIGHT 5 2 1 HART Resistor Selection The MC1200 can be setup so that the 250 ohm resistor required for Hart configuration devices resides inside the MC1200 Enabling the MC1200 s internal 250 ohm resistor eliminates the need to manually add a series resistor during a Hart calibration process NOTE When the MC 1200 internal 250 resistor is enabled maximum load driving capability drops from 1000 ohms 20mA to 750 ohms 20mA Enable Disable Procedure 1 Remove the battery cover and remove the 2 screws that are at the top of the case 2 Remove the 2 screws on the bottom or lower portion of the case 3 Gently remove the top half of the case from the bottom 4 Figure 10a shows the location of the Hart jumpers 5 3 Measuring Pressure Note The Martel Pressure Module connector 700mA needs to be purchased to connect pressure module to calibrator Note The MC1200 is compatible with BETA Calibrator Pressure Modules The ac
38. 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 10 MA WAI OUT 5 V will out put 10mA and wait until output settles than volts command will be processed 7 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 37 38 CJ C_STATE Turns Cold J unction Compensation CJ C on or off when the calibrator is in thermocouple TC mode The command is used by adding ON or OFF after it For example C C_ STATE OFF turns CJ C off CJ C_STATE Tells whether the Cold J unction Compensation in thermocouple mode is turned on or turned off The calibrator returns OFF if CJ C is off and ON if CJ C 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_COEF
39. l rechargeable battery pack 9 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 9 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 9 4 Replacement Parts amp Accessories 700MA Fluke Module Adapter BPPA 100 BETA Pressure Module Adapter 80029 J KTE T C Wire Kit Mini Plugs 80036 RSNB T C Wire Kit Mini Plugs CC572 Carrying Case C232S RS 232 Cable with Miniature Plug 5353050 48 Stackable Testleads 1001 9V Battery Adapter Charger 9 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 return
40. lection menu for the upper display Choosing LOWER calls up the parameter selection menu for the lower display MORE enters the next menu level UPPER LOWER MORE The Auto Function Menu is the next menu if you are in source mode lts 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 MC1200 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 10 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
41. nput and output connections on the calibrator while Table 1 describes their use MARTEL MC1200 Same CUE Fl F2 F3 a O 1 55 9 3310 Figure 1 Input Output Terminals Table 1 Input and Output Terminals No Name Description 1 2 Measure Isolated V Input terminals for measuring current voltage and supplying mA terminals loop power 3 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 4 5 Source Measure Terminals for sourcing and measuring voltage frequency V RTD 2W Hz pulse train and RTDs 6 7 Source Measure Terminals for sourcing and measuring current and performing mA terminals 3W 4W RTD measurements with 3 wire or 4 wire setups 8 Pressure module connector Connects calibrator to a pressure module for pressure meas urements 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 MARTEL MCT200 T F1 F2 Yil F3 O MEASURE Figure 2 Keypad Table 2 Key Functions No N
42. nsors 4 1 Setting 0 and 100 Output Parameters To set the 0 and 100 points use the following steps 1 Select the lower display LOWER from Main Menu and choose the desired primary parameter 2 Select output OUT from the input output control and enter the desired value For example select VOLTS OUT Enter 5V 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 0 F1 0 will flash and the setpoint is stored 6 Repeat these steps entering 20V and holding the Function Key that corresponds to 100 F 3 7 Use the 25 key to cycle 5 V and 20 V in 25 increments 4 1 1 Stepping the current output To use the 25 function with mA output follow these steps L Select the lower display from the Main Menu and choose mA 2 Use the 25 key to cycle between 4 mA and 20 mA in 25 intervals 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 setin 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 The limits for the ramp and step functions are set to the 0 and 100 values See
43. ode of the upper and lower display LOCAL Returns user to manual operation of the calibrator LOCKOUT Locks out the keypad of the calibrator and allows for remote operation only LOWER_MEAS Sets the mode for measuring on the lower display L_PRES_UNIT Sets the pressure unit on the lower display OUT Sets the output of the calibrator OUT Returns the output of the calibrator PRES Returns the model and serial number of the attached pressure module PRES UNIT Returns the pressure unit for the upper and lower display PULSE_CNT Sets the number of pulses for the pulse train PULSE_CNT Returns the number of pulses in the pulse train 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 number setting used in the RTD mode SIM Sets the output for mA simulation SIM Returns the output of the mA simulation TC_TYPE Sets the thermocouple type TC_TYPE Returns the thermocouple type TEMP_UNIT Sets input output temperature unit for RTD and TC TEMP_UNIT Returns the temperature unit for RTD and TC TRIG Starts and stops the pulse train in pulse mode TRIG Returns TRIGGERED when a pulse train is on Returns UNTRIGGERED when the pulse train is off TSENS_TYPE Sets temperature sensor type TSENS_ TYPE Returns temperature sensor type UPPER_MEAS Sets the measuring mode for the upper display U_PRES_UNIT Sets th
44. oosing TC on the lower display Replace TC with the correct parameter for the transmitter cocoa cobi Jon K QA Figure 21 Calibrating a Transmitter 6 4 Calibrating a Pressure Transmitter To calibrate a pressure transmitter use these steps 1 A ws Select upper display from the Main Menu and choose current mA LOOP from the primary parameters Return to Main Menu Select lower display and choose PRESSURE from the primary parameters Connect the calibrator to the transmitter and the pressure module as in Figure 22 Zero the pressure module Test the transmitter at 0 and 100 of the span and adjust as necessary MARTEL Mc1200 DES 5 Ea T T T FA F2 F3 Z m Oa 5 E z Y O oO y PRESSURE m MODULE A O O s HAND PUMP Figure 22 Calibrating a Pressure Transmitter 7 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
45. r example FUNC Returns the current modes of the upper and lower displays Compound Commands Commands that contain more than one command on one line For example LOWER_MEAS RTD RTD_TYPE CU10 Sets the calibrator to measure RTD in the lower display 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 29 30 7 3 2 Character Processing The data entered into the calibrator is processed as follows e ASCII characters are discarded if their decimal equivalent is less than 32 space except 10 LF and 13 CR e Data is taken as 7 bit ASCII e The most significant data bit is ignored e Upper or lower case is acceptable 7 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 90800
46. r is reset Event Status Enable Register ESE Enables and disables bits in the ESR Setting a bit to 1 enables the corresponding bit in the ESR and setting it to 0 disables the corresponding bit Cleared at power reset Bit assignments for the ESR and the ESE respectively are shown below 12 11 10 9 8 0 0 0 0 0 15 14 13 0 0 0 4 3 2 1 0 EXE DDE QYE 0 OPC 7 6 5 PON 0 CME PON Power On Setto 1 if power was turned on and off before the Event Status Register was read 31 32 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 Inpu
47. rns the status byte WAI Prevents further remote commands from being executed until all previous remote commands have been executed Table 6 Calibrator Commands Command Description CAL_START Puts the calibrator in calibration mode CJ C_STATE Turns CJ C on or off CJ C_STATE Returns the state of the CJ C 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 FAULT Returns the error code of an error that has occurred FREQ LEVEL Sets the frequency and pulse amplitude FREQ LEVEL Returns the frequency and pulse amplitude Command Description FREQ TYPE Set the frequency output to continuous frequency or pulse FREQ TYPE Returns frequency output type continuous or pulse FREQ UNIT Sets the unit for frequency and pulse FREQ UNIT Returns the unit for frequency and pulse FUNC Returns the current m
48. t Buffer Calibrator stores all received data in the input buffer The buffer holds 250 characters The characters are processed on a first in first out basis 7 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 ESIE 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 Retu
49. the home menu It can be accessed anytime by pressing the HOME key There are three variations of the home menu the input home menu the output home menu and the pulse 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 pulse home menu also has three active options MENU TRIG and COUNTS The TRIG and COUNTS options are used for pulse simulation The function of these options is explained in Section 4 2 6 Sourcing a Pulse MENU TRIG COUNTS 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 three active options UPPER LOWER and MORE Choosing UPPER calls up the parameter se
50. tor will produce when itis triggered while in pulse mode For example PULSE_CNT 3000 will set the number of pulses to 3000 PULSE CNT Returns the number of pulses in the pulse train Using the above example the returned value would be 3000 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 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 PT385_50 PT385_100 PT385_200 PT385_500 PT385_1000 PT392 100 PTJ IS_100 Ni120 Cul0 Cu50 Cul100 YSI 400 OHMS CUSTOM For example RTD_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 SIM Sets the output for current simulation This command also switches the calibrator into mA simulation mode A number and a unit must be entered after the command For example SIM 5 MA sets the current simulation at 5
51. ure volts current pressure resistance temperature detectors RTDs thermocouples frequency and resistance and to source pulse trains e A thermocouple TC input output terminal with automatic reference junction temperature compensation e Five setpoints in each range for increasing decreasing output e An interactive menu e Complete RS 232 interface for remote control e Isolated read back for transmitter calibration 1 1 Customer Service Corporate Office www martelcorp com e mail sales martelcorp com Tel 603 434 1433 800 821 0023 Fax 603 434 1653 Martel Electronics 3 Corporate Park Dr Derry NH 03038 1 2 Standard Equipment Check to see if your calibrator is complete It should include MC1200 Calibrator Instruction Manual Test Leads Rubber Boot NIST Certificate 1 3 Safety information Symbols Used The following table lists the International Electrical Symbols Some or all of these symbols may be used on the instrument or in this manual Symbol Description AC Alternating Current AC DC Hae Battery CE Complies with European Union Directives y mr DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Hazard Read the User s Manual Important Information Off On O gt i enl Canadian Standards Association o yu c a The following definitions apply to the terms Warning and Caution e Warning identifies conditions an
52. ut output control Select the desired thermocouple type from the sensor types Enter the temperature using the keypad mA IN 25 00 0 000 m TC OUT CJC OFF 100 0 C MENU UGT Figure 14 Connections for Outputting RTDs 20 4 9 Sourcing Ohms RTDs To source an RTD follow these steps 1 Select lower display 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 Connect the calibrator to the instrument being tested as in Figure 14 Enter the temperature or resistance using the keypad Use stackable test leads for shared connections MEASURE SOURCE measure fata SOURCE MEASURE 4W Figure 15 Using a 3 or 4 wire Connection for RTDs mA LOOP 25 00 ___0 000 mA RTD OUT P500 385 10 0 G meno UGHT Note The calibrator simulates a 2 wire RTD To connect 3 or 4 wire transmitter use stacking cables as shown in Figure 15 4 9 1 Custom RTD A custom curve fit PRT may be entered into the calibrator for sourcing and measuring To do so follow these steps L Switch to lower display Select RTD and set sensor type to CUSTOM 2 Enter the RTD custom setup main menu and select SET CUSTOM 3 Using the keypad enter the values that the calibrator prompts for minimum
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