ALTEK PROCESS CALIBRATOR TechChek Model 820

1 DATA SHEET 820 ONE VERSATILE TOOL- MULTIPLE FUNCTIONSC alibrator - Milliamps, Voltage, RTD, T/C & FrequencyMultimeter- Measure AC/DC Volts, Ohms & Continuity TYPICAL ACCURACY TO to mA, V or Hz, 1 C, & Ohms DISPLAYS PROCESS SIGNALS C, F, mA, % 4 to 20, V, mV, Ohms, Hz & CPM DIGITAL ACCURACY WITH ANALOG SIMPLICITYS peed sensitive digital pot for fast output adjustment EASY TO LEARN - EASY TO USES imple, menuless operation USER SETTABLE QUIK-CHEK SWITCHSet any Span and Zero MINIMUM & MAXIMUM TRACKINGI nstantly recall the highest & lowest measurements STANDARD ALKALINE BATTERIESLong battery life with quick battery changes DESIGNED FOR SAFETY TO IEC 1010 Shielded banana jacks & test leads, Alligator Clips, Test Probes & Spade Lugs GENERAL INFORMATIONALTEKPROCESS CALIBRATORTechChek Model 820 Lighten your load by taking the TechChek to everysite.

2 It s like bringing a cartload of test equipment fromthe shop to the control room or the field. The TechChek820 sources & reads DC like a milliamp or voltagecalibrator, simulates and measures T/Cs & RTDs like atemperature CALIBRATOR and generates and countsfrequency & Counts-Per-Minute like a frequency calibra-tor. Troubleshooting? It checks continuity and measuresAC line voltage like a multimeter!The TechChek 820 is easy to use. Select a function,choose a range, and turn the knob for the precise outputyou need. Plus, you can store three output values perrange for instant recall with the QUIK-CHEK CALIBRATIONUse at every point in your 4 to 20 mA loop.

3 You canSource & Read to mA, Simulate a Two-WireTransmitter or the use the TechChek 820 to simultane-ously Power & Measure your Two-Wire CALIBRATIONC alibrate all your DC millivolt and voltage instrumen-tation. Source from to mV and to up to mV, V and CALIBRATIONS ource and read directly in C and F for T/C typesJ, K, T & E with 1 resolution. Cold junction compen-sation automatically adjusts for ambient CALIBRATIONB uilt-in Platinum 100 Ohm DIN/IEC 751 tabledisplays in C or F. No more decade box and hard-to-read tables. Also reads and sources in CALIBRATIONG enerate Zero Crossing square waves from 1 to1000 Hz, to kHz and from 1 to 1000 CPM(Counts-Per-Minute).

4 Also measures as a AC VOLTAGEC heck your line voltage or mains from to AC. Great for troubleshooting power CONTINUITYL ocate pairs of wire, open connections and shortswith the built-in beeper.!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CMilliamp Output SignalControllerTransmitterP/IDCSREDBLAC KTYPICAL HOOKUPS!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CMilliamp Receiver InputControllerTransmitterComputerLogger I/PDCSREDBLACK+IN-REF +OUT-!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CREDBLACKT ransmitter InputSensorProcess SignalSimulated InputTypical2-WireTransmitterAC Voltage SignalMainsLine Voltage!

5 !145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CBLACKREDSOURCE mA, mVDC, VDC, Hz or CPMThe Model 820 TechChek sources a wide variety ofprocess control signals. You can store any three outputvalues and use the QUIK-CHEK switch to outputs are 4 to 20mA, 0 to 100% of 4 to 20mA, 1 to 5 Volts, 0 to 100 mV plus square waves in Hz orCPM. READ mA, mVDC VDCRead VDC to , Hz or CPM to VpeakEasily measure PROCESS DC signals. Flip the QUIK-CHEK switch to recall the mininum and the Model 820 in series with the loop to measure 4to 20 mA or across receiver inputs to measure the 1 to 5volt signal.

6 Read flow meter signals in Hz or to VACRead VDC to , Hz or CPM to 250 VpeakCheck AC power (mains) to your panels without avoltmeter. Also measure power supplies, loop voltages &high amplitude frequency & MEASURE 2-WIRE TRANSMITTERSUse the Model 820 TechChek to simultaneously supplypower to a 2-Wire transmitter while displaying the 4 to 20mA output of the Model 820 supplies a nominal 25 VDC andsupports loads up to 1200 Ohms.!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CREDBLACKCHECK CONTINUITYA tone sounds when the resistance between the termi-nals is less than approximately 100 is useful to find open connections, shorts orto identify wire 2-WIRE TRANSMITTERSS imulate a 2-Wire Transmitter output from to or from to of 4 to 20 mA.

7 Operates inloops with power supply voltages from 3 to 45 the Model 820 for any transmitter to check allthe other devices in the loop. Or use to temporarily replace!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CREDBLACKR eceiver InputOhms or 2-Wire RTDC ontrollerTransmitterComputerSOURCE or READ Ohms and 2-Wire RTDsSimulate resistance to 400 Ohms or 2-Wire Platinum100 Ohm RTDs. Read Pt 100 Ohm RTDs and resistanceto 1000 Ohms.!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/C+IN-REF +OUT-REDBLACKP ower Supply2 to 45 VDCR eceiver(Powers external2-Wire Transmitter)ToSensorTypical2-WireTransmi tter(Disconnected)Dial in any temperature tosimulate the output of a TypeJ, K, T or E three values on theQUIK-CHEK switch to instant-ly output any temperature in C or junction compensationautomaticly adjusts the milli-volt output as the ambienttemperature changes.

8 !!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CREDBLACKBLACK3 TYPICAL HOOKUPS!!145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!T/CREDBLACKBLACKI nstrument withRTD InputControllerTemperature TransmitterTemperature IndicatorTemperature Trip or AlarmSIMULATE AN RTD SENSORS imulate a Platinum 100 Ohm (385) RTD sensor direct-ly in C or F. Three test leads and spade lugs are includ-ed with the 820 for easy holding a bulky decade box while readingRTD vs. resistance 3-WIRE RTDsMeasure any Platinum 100 Ohm (385) RTD sensors in C or F. Three wire hookup lets you read typical processcontrol sensors including ones with long cable and maximum temperatures let you tracktemperatures to find control A THERMOCOUPLEC onnect any J, K, T or Ethermocouple and read directlyin C or the QUIK-CHEK switchto display the minimum andmaximum measured tempera-tures.

9 Monitor an independentsensor to tune the deadbandadjustment of A THERMOCOUPLE!!T/C145235V MAXINPUT45V MAXINPUT!300 VMAXINPUT45 VMAXINPUT!+-+-Instrument withThermocouple InputControllerTemperature IndicatorTemperature Trip or AlarmTemperature TransmitterADDITIONAL INFORMATIONTHREE YEAR WARRANTYOur equipment is guaranteed against defective material and workmanship(excluding batteries) for a period of three years from date of under guarantee can be made by returning the equipment prepaidto our factory. The equipment will be replaced, repaired or adjusted at ouroption. The liability of ALTEK is restricted to that given under our responsibility is accepted for damage, loss or other expense incurredthrough sale pr use of our equipment.

10 Under no condition shall ALTEK beheld liable for any special, incidental or consequential PRODUCTSA ltek designs and manufacturers fast, accurate instruments for measure-ment, generation and simulation of virtually every PROCESS control our factory directly or contact your local stocking representative toorder precise, low cost Milliamp Calibrators, Voltage Sources,Thermocouple Sources, RTD Simulators, Frequency Calibrators andPressure Pumps, Indicators & Calibrators. ALTEK also produces calibratorsfor custom ranges and unique applications. New models are frequentlyadded to the ALTEK family to meet all of your critical calibration products are made in the INFORMATIONPart 820 TechChek820 PROCESS CALIBRATORI ncluded with each Model 820 are:Carrying Case with belt loop and shoulder strap Test Lead Kit (Part No.)