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Altek Model 422 14Type Universal Thermocouple Calibrator Manual

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    Page 1 Universal Thermocouple Calibrator Model 422 • 14 T/C type plus mVJ, K, T, E, R, S, B, N, G, C, D, P, L, U & mV • Temperature input & outputReads directly in degrees • Quik-Chek™ switchInstantly recall three outputs; HI, LO & Set • 45 output memoriesThree for each T/C type & mV • Accuracy ±(0.008% of Reading+0.006 mV)Typical accuracy of 0.4°C or 0.7°F Field selectable 0.1° or 1µV resolutionCalibrate thermocouple instruments Source and read T/C’s over the entire industrial tem- perature range with...
    Page 2 General instructions Setting operating mode Over range/under rangeOut-of-range temperatures are indicated by OVER and UNDER on the display. If out-of-range is displayed during READ mode check for proper con- nections and T/C type. Turn-onEach time the Model 422 is turned on, the LCD will display all segments for about 1 second. It then dis- plays the currently selected thermocouple type for approximately 3 seconds. The currently selected temperature scale of °C or °F will then display for about 3...
    Page 3 Simulate a thermocouple Source1) Set up the Model 422 for the correct T/C type and temperature scale (°C or °F). 2) Disconnect the input wires from the device to be calibrated or checked. 3) Connect the Model 422 to the device to be calibrated, being careful to observe proper polarity and T/C type 4) Adjust the digital pot to the desired output value. OutputWhenever SOURCE mode is selected the word SOURCE will appear on the LCD. To change the output value, turn the speed sensitive digital pot. Turning...
    Page 4 PN 1886501 Rev A April 2002 ©2002 Altek Industries, Inc. Specifications subject to change without notice. All rights reserved. Printed in U.S.A. Altek products are warranted to be free from defects in material and workmanship (excluding fuses, batteries and leads) for a period of three years from the date of shipment. Warranty repairs can be obtained by returning the equipment prepaid to our factory. Products will be replaced, repaired, or adjusted at our option. Altek gives no other warranties,...
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