Table of Contents INTRODUCTION ................1 The TRX-II calibrator ................1 Pressure Measurements and Calibrations........1 Automatic Calibration................1 Standard Accessories...............1 Optional Accessories ................1 FUNCTIONALITY................2 Parts Identification ..............2 Screens to work with ............3 Keys to work with ................3 Functional Modes ................4 Keystroking ..................5 POWER SOURCES .................6 SET-UP.....................8 Language Setting................8 Date and Time Settings ..............8...
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Menu Selections ................23 Millivolts ..................24 Volts ....................24 Milliamps/XMT ................24 Ohms ..................... 25 Frequency ..................25 Counter ..................26 TO SIMULATE A THERMOCOUPLE ........... 27 TO SIMULATE A RTD..............27 SPECIAL SOURCE/SIMULATION FUNCTIONS......28 Step Mode..................28 Automatic Ramp Mode ..............
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IMPORTANT NOTE Unless otherwise indicated in the text, the operating instructions contained in this publication apply to both the TRXII Multi-Calibrator instruments and the TRXII IS Multi-Calibrator instruments. Only the intrinsically safe version of this Multi-Calibrator instrument (TRX II IS) may be used in hazardous areas and the following general warnings and conditions of use summarized below are applicable.
INTRODUCTION The TRX-II Calibrator The Multi-Calibrator model TRX-II has been designed for testing and calibration of process instrumentation and portable test equipment. The unit provides data to comply with the ISO 9000 requirements for calibration. The TRX-II can be used to measure and source analogue and digital signals often used in an industrial environment.
FUNCTIONALITY Parts Identification ( 1. POWER switch Switch the calibrator "ON" and "OFF". 2. EXT. POWER MEASURE Connector for external power source. Only suitable for optional line adaptor/charger #13603. 3.* Battery compartment cover Release screws to get access to batteries. 4.* Battery selector switch To select Alkaline or Rechargeable batteries.
Screens to work with The TRX-II has four types of screen display to work with: • Menu Selection Screen ( Offers selection of choices. Move cursor with arrow keys to your choice. • Set-up Screen ( Move cursor with arrow keys to fill in the blanks. •...
# + EXE Opens set-up menu. Opens signal converter set-up screen. • The RCL key + Numerical key 1-9 Recalls stored key-pad operations (Keystroking). Press RCL first and hold, while pressing the next key. • The 0 key Changes the sign when display reads all zeros. •...
Keystroking Keystroking is a solution to eliminate time consuming key-pad operations for frequently used functions. It can store 9 different sequences of key-pad operations. Recalling a sequence immediately returns to the function as stored. A sequence from any operational situation can be recalled. •...
POWER SOURCES Power from internal batteries Internal power is obtained from 4x 1.5 V Alkaline batteries or four 1.2V, rechargeable batteries, Model R14, Baby or C size. Note: Not applicable for Model TRX-II IS. Installation of the batteries Switch the calibrator off before installing new batteries. Note: Not applicable for Model TRX-II IS.
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lowered. If the batteries do not reach their normal capacity after a 14 hour charging period, cycle complete discharging and charging at least twice. If the batteries remain weak they should be replaced. No particular brand of Ni-Cd is recommended although cells rated at 2.0 Ah have preference over the more generally available 1.8 Ah cells.
SET-UP Language Setting The TRX-II has multilingual software. The factory setting is ENGLISH. Setting the Language Leave the cursor at NONE at the measure and source menu and press # and EXE keys simultaneously to open the Set-up menu. Select LANGUAGE and press EXE. Select required language and press EXE.
Changing the temperature scale Leave the cursor at NONE at the measure and source menu and press the # and EXE keys simultaneously to open the set-up menu. Select Temp. settings and press EXE. Select °C and press EXE to change from °C to °F or vice versa.
Changing the ACCESS CODE Leave the cursor at NONE at the measure and source menu and press # and EXE simultaneously to open the set-up menu. Select ACCESS CODE and press EXE. Type in the access code and press EXE to confirm. You are now in a mode where you can change the code.
System Setting Setting the backlight automatic mode Leave the cursor at NONE at the measure and source menu and press the # and EXE keys simultaneously to open the set-up menu. Select system and press EXE. Select BACKLIGHT and press EXE. Select required time or backlight timer MODE OFF and press EXE.
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Dec. Separate Leave the cursor at NONE at the measure and source menu and press the # and EXE keys simultaneously to open the set-up menu. Select DEC.SEPARATE and press EXE to change the settings from/ to, or vice versa. Press CE to leave the set-up menu. Key repeat Leave the cursor at NONE at the measure and source menu and press # and EXE keys simultaneously to open the set-up menu.
TO MEASURE ELECTRICAL SIGNALS Millivolts Select mV and DIRECT in the measure menu and press EXE to open the working screen. The upper window in the working screen indicates the measured millivolts reading. The range is 0-600 mV split into two (auto) ranges of 0 to 100 mV and 100 to 600 mV. Read the section “Scaled Readings”...
Ohms Select OHMS and DIRECT in the measure menu and press EXE to open the working screen. The upper window in the working screen indicates the measured ohms reading. The range is 0-2000 Ohms split into two (auto) ranges of 0 to 400 Ohms and 400 to 2000 Ohms. The excitation current is 0.9 mA.
Pulse Counter Mode Two different pulse count modes are available: • Counts the pulses received in one minute. • Counts the pulses received in one hour. Select FREQ. in the measure menu and press EXE. Select P/MIN. of P/HOUR and press EXE. Enter a trigger level between 10 mV and 5.0 Volts and press EXE to open the working screen.
Circuit Continuity Tester To check wiring continuity use the RTD measure terminals identified with Switch. If NONE has been selected in the source menu and SWITCH has been selected in the measure menu, press EXE to enter the continuity check mode. Closing the test loop will activate the built-in buzzer to prove that the wiring loop has a resistance of 2200 Ohms or less.
Remote temperature probe (not supplied by GE) With a Pt100 sensor you can measure cold junction temperatures from -200°C to 850°C (-328 ... 1562 °F). Select EXTERNAL in the cold junction menu (CJ) and press EXE, to compensate the external cold junction microvolts automatically.
Hand held thermometer (not supplied by GE) Read the thermometer while holding it close to the instrument terminals. Select MANUAL and open the screen to fill out the obtained reading. Press EXE to enter. Note that in this mode temperature changes at the instrument terminals can easily create calibration errors.
TO MEASURE PRESSURE The TRX-II Pressure Sensor Option The pressure sensor has been designed to calibrate pressure instruments in conjunction with the TRX-II multi- calibrator. The pressure sensor is powered from the TRX-II calibrator. It allows pressure instrument calibrations with ranges from: •-15 psi up to 10 000 psi •-1 bar up to 700 bar).
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Select the connected sensor from the available sensors with the key, and press EXE. Press CE to leave menu. The next menu gives you all the details of the selected sensor. This information should be checked with the sensor information on the connector.
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Press # to unlock the switch reading. The switch reading will track the source reading again. Make sure that contacts are potential free. Calibration Hook-up for a Pressure Switch K319 Issue 2 EN-21...
SPECIAL MEASUREMENT FUNCTIONS Scaled Readings Except in temperature measure ranges all readings can be presented in a number of 5 digits and a sign. This number could represent an engineering unit like gallons/hour, revolutions/minute or any other relationship. This facility is available on both measurement and source functions.
SOURCING OF ELECTRICAL SIGNALS Menu Selections Select a source range and select DIRECT from the menu. It puts you right in the source mode. For other modes read section "Special Source Functions". The lower part of the screen shows the window for source functions.
Millivolts Go to millivolts in the DIRECT mode to source any signal between - 10 mV and 100 mV. Adjustments are made with 1 microvolt resolution. If the adjusted source level can not be maintained the screen will prompt the warning CHECK LOOP. Note:‘Terminal to test lead' junctions may create e.m.f.
Ohms Go through the OHM menu and select either the 0 to 400 or the 0 to 2000 Ohms range and enter the DIRECT mode. Resistance is simulated across the two terminals as shown. Connecting a third or fourth wire adapts the simulation to 3 or 4 wire input. Adjustment resolution is respectively 0.01 Ohms and 0.1 Ohms.
as a voltage adjustable and regulated DC supply. Frequency source can take loads up to 32 mA at 24 Volts maximum. Frequency source range 0-100 Hz Go to frequency DIRECT mode to source any frequency signal between zero and 100 Hz. Adjustments are made with 0.01 Hz resolution.
TO SIMULATE A THERMOCOUPLE Work through the thermocouple menu and make the selections as required. Select the DIRECT mode to simulate any temperature within the range of the chosen thermocouple type. Adjustment resolution is 0.1 degree. For Cold Junction compensation considerations and different wiring methods read section "To simulate thermocouples"...
SPECIAL SOURCE/SIMULATION FUNCTIONS Step Mode In the step mode the TRX-II can generate preset source levels in four different ways; • Free programmable, Select PROGR Number of steps (2 to 10) and levels are free programmable. • 10% Divisions, Select 10% Free programmable span is automatically divided in 10 steps of 10% each.
To source fixed steps manually Initially the TRX-II sources the preset value of step number 1 or 0%. Press the key to source the next step. Press the key to source the previous step. Press key to switch to the DIRECT mode to allow fine adjustments with the keys.
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Source in scaled readings Dial directly in scaled readings to SET a related source signal as set-up. Press EXE to actually source the signal. The functions are available for fine adjustment of the source. For details see the chapter “SPECIAL MEASUREMENT FUNCTIONS” section "Scaled Readings".
TRANSMITTER CALIBRATION In this function transmitter source and measure readings are both scaled in engineering units for quick comparison. Transmitter may be a linearized, non-linearized, 4-20 or 0-20 mA model for thermocouples or RTD. Setting-up a Calibration Leave the cursor at NONE in the measure menu and select the required source function.
Pressure Transmitter Calibrations 2-Wire transmitter; calibrator powered Make a calibration hook-up as indicated. Switch the TRX-II calibrator on to power the transmitter with 24 VDC. Select PRESSURE in the source menu and mA/XMT in the measure menu. Select the appropriate SENSOR in the source menu to read your calibration pressure.
TRANSMITTER SIMULATION User can dial a temperature in degrees to source a 4-20 mA or 0-20 mA signal. This signal can be used to simulate transmitters at control system measure terminals. The simulated transmitter may be linearized or non-linearized. Function is available for all types of temperature sensors supplied as standard in the TRX-II.
PROGRAMMABLE SIGNAL CONVERTER With this unique feature any measure signal can be converted into any on the TRX-II available source signals with full galvanic isolation. Zero and span settings for both measure and source are fully programmable. Setting-up a signal converter Make all measure and source selections as you would do when you use measure and source functions separately in the DIRECT source mode.
CE REMARKS The TRX-II prompts "ERROR" or "CHECK LOOP" whenever the functionality is influenced by electromagnetic disturbances. The results obtained during this state are unreliable. Error message The TRX-II is protected against failures by fast transient / burst. It restarts itself whenever this situation occurs and returns to the main screen.
SUPPLEMENT FOR INTRINSICALLY SAFE CALIBRATOR TRX-II iS Instructions for use Model TRX-II iS marked with label "Ex" has been built in accordance with European Norm II 2 (1) G EEx-ia IIC T5 and may be used in IEC defined zones 0,1 and 2. Special precautions for use in hazardous areas 1.
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Specifications For unit performances see TRX-II data sheet for the standard version. Deviations from the standard unit 0 ... 21 mA Rmax. 600Ω Transmitter Supply: 12 VDC at the output terminals of the unit PCMCIA card: NOT supported, non removable COMPACTFLASH inside. Backlight: NOT supported.
SERVICE, REPAIR AND PARTS Recalibration of the TRX-II Leave the cursor at NONE in the MEASURE and SOURCE menu and press the # and EXE keys simultaneously to open the set-up menu. Select CALIBRATION and press EXE. Fill out the access code and press EXE to open the calibration menu.
Pressure Sensor Installation of a new pressure sensor To add a new sensor specific data must be entered in the TRX-II memory. This is to correct the sensor linearity and hysteresis in the TRX-II calibrator. Each new sensor is delivered with the following data;...
range of the sensor. In general a dead weight tester is recommended. Calibration is performed at zero, 50% and full span only. Best straight line fit is established by the polynomial factors as entered during installation. Plug the sensor in the calibrator and switch the unit on. Wait 15 minutes to allow the unit to stabilize.
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2. When normally battery powered, check the contact springs for corrosion and spring tension. 3. Check total battery voltage with a voltmeter. Alkaline should read around 6 Volts and NiCd should read around 5 Volts when new or fully charged. 4.
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Special functions Steps; 10 programmable, 10%, 20%, 25% div. step- ping by key or adj. timer Ramp; programmable travel time for up/down and dwell Scaling; in 5 digits and sign on all electrical ranges Temp. XMT cal.; both measure and source readings in temp.
Pressure sensors Standard specification Reference Horizontal positioned sensor(s) 22 °C ±1°C(72 °F ±2°F), RH 45% ±15 (absolute sensors vertically positioned) Calibration Traceable to National Standards Temperature ±0.5% F.S. T.E.B. over 0-50 °C, typically 0.015% F.S./ °C effects Zero error Manual reset on TRX-II calibrator compensation Overpressure 2x pressure range up to 140 bar max.
Returned Goods Procedure Should the unit become unserviceable and require repair it can be returned to the GE Druck Service Department. Please contact our Service Department, either by ‘phone or fax, to obtain a Returned Goods Authorization (RGA) number, providing the following information: •...