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Omega PCL1200 Скачать руководство пользователя страница 31

27

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.

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 measure the
output pressure.

4. Enter a current using the keypad.

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Содержание PCL1200

Страница 1: ...e mail info omega com For latest product manuals www omegamanual info NORWALK CT Shop online at omega comSM User sGuide PCL1200 Portable High Accuracy Multifunction Calibrator...

Страница 2: ...l 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide The information contained in this document is believed to be correct but OMEGA accepts no liability...

Страница 3: ...cy 20 4 7 Sourcing a pulse train 20 4 8 Sourcing Thermocouples 21 4 9 Sourcing Ohms RTDs 22 5 Using Isolated Measure Modes Upper Display 24 5 1 Measuring volts and mA 24 5 2 Measuring current with loo...

Страница 4: ......

Страница 5: ...Ds thermocouples frequency and resistance and to source pulse trains A thermocouple TC input output terminal with automatic reference junction temperature compensation Five setpoints in each range for...

Страница 6: ...Some or all of these symbols may be used on the instrument or in this manual Symbol Description AC Alternating Current AC DC Battery CE Complies with European Union Directives DC Double Insulated Elec...

Страница 7: ...unding 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 calibrato...

Страница 8: ...le to the pressure line 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 mechanic...

Страница 9: ...for measuring or simulating thermcou ples Accepts miniature polarized thermocouple plugs with flat in line blades spaced 7 9 mm 0 312 in center to center 4 5 Source Measure V RTD 2W Hz Terminals for...

Страница 10: ...y 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 L...

Страница 11: ...Input Output con trol Switches the lower display between input mode read and output mode source 3 Additional Settings Available only for TC thermocouple and RTD measurements For TC this setting turns...

Страница 12: ...key F2 to turn on the back 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 s...

Страница 13: ...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...

Страница 14: ...instructions on zeroing The parameter selection menu is called up when UPPER or LOWER is selected from the main menu It contains the following options SELECT NEXT and DONE When the display is selected...

Страница 15: ...ociated 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 th...

Страница 16: ...the lower display LOWER from Main Menu 2 Select the desired parameter for measurement 3 Connect leads as shown in Figure 5 Figure 5 Measuring Volts and Frequency with Input Output Terminals 3 2 Measu...

Страница 17: ...ps 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...

Страница 18: ...IN from input output control 3 Choose 2 3 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 F...

Страница 19: ...rque 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...

Страница 20: ...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 i...

Страница 21: ...with mA output follow these steps 1 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...

Страница 22: ...1200 Enabling the PCL1200 s internal 250 ohm resistor eliminates the need to manually add a series resistor during a Hart calibration process NOTE When the PCL1200 s internal 250 resistor is enabled m...

Страница 23: ...urrent 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 Con...

Страница 24: ...signal use these steps 1 Switch to the lower display and select frequency from the primary parameters 2 Select output and than choose the frequency units 3 Connect the leads to the frequency output t...

Страница 25: ...ulse can be adjusted in the same manner as for frequency Figure 13 Connections for Outputting Thermocouples 4 8 Sourcing Thermocouples To source a thermocouple use the following steps 1 Connect the th...

Страница 26: ...om 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...

Страница 27: ...ficients 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 neede...

Страница 28: ...alibrator as in Figure 16 Figure 16 Isolated Input Connection 5 2 Measuring current with loop power To test a 2 wire loop powered transmitter that is disconnected from wiring use the loop power functi...

Страница 29: ...ve 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 OMEGA Pressure Module connector 700mA needs to be purchased to connect p...

Страница 30: ...kes 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 2 Switch to either upper or lower display from th...

Страница 31: ...and the calibrator as shown in Figure 19 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 S...

Страница 32: ...nt loop mA LOOP 2 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 3 Set the 0 and 100 span point...

Страница 33: ...nd choose current mA LOOP from the primary parameters Return to Main Menu 2 Select lower display and choose PRESSURE from the primary parameters 3 Connect the calibrator to the transmitter and the pre...

Страница 34: ...ions are shown in Figure 23 Figure 23 Calibrator to Computer Connection 7 1 Setting up the RS232 Port for Remote Control Note The RS 232 connection cable should not exceed 15m unless the load capacita...

Страница 35: ...rom 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 ser...

Страница 36: ...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...

Страница 37: ...s keywords For example RTD_TYPE returns PT385_10 Indefinite ASCII IAD Any ASCII characters followed by a terminator For example IDN returns OMEGA ASC300 250 1 00 7 3 4 Calibrator Status Status registe...

Страница 38: ...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...

Страница 39: ...e 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 t...

Страница 40: ...ntil 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 comm...

Страница 41: ...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...

Страница 42: ...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 Table 8 Error codes Error Number Error Descripti...

Страница 43: ...e 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 t...

Страница 44: ...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 whe...

Страница 45: ...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 cal...

Страница 46: ...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 t...

Страница 47: ...ts 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...

Страница 48: ...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 frequency...

Страница 49: ...RESSURE 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 f...

Страница 50: ...ator 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 r...

Страница 51: ..._100 Ni120 Cu10 Cu50 Cu100 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...

Страница 52: ...mand 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...

Страница 53: ...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 Unit...

Страница 54: ...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 0...

Страница 55: ...o assure zero crossing Table 13 Resistance Measurement Range Accuracy of reading floor Ohms low 0 00 400 0 0 025 0 05 Ohms high 401 0 4000 0 0 025 0 5 Table 14 Resistance Source Range Excitation Curre...

Страница 56: ...0 2 0 4 R1 0 0 200 0 1 7 1 9 200 0 1767 0 1 0 1 2 S1 0 0 200 0 1 7 1 9 200 0 1767 0 1 1 1 3 B1 600 0 800 0 1 5 1 7 800 0 1000 0 1 2 1 4 1000 0 1820 0 1 0 1 2 C 0 0 1000 0 0 5 0 7 1000 0 2316 0 1 5 1...

Страница 57: ...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 Pt3...

Страница 58: ...the warranty 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...

Страница 59: ...y OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limite...

Страница 60: ...Air Velocity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps...

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