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Altek 334A Loop Calibrator Manual

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    Overview Comments
    Page 1 Loop Calibrator Model 334A • All milliamp loop functionsSource milliamps Simulate two-wire transmitters Read milliamp outputs Power & measure two-wire transmitters Read DC Volts to check power supplies • Compact and lightweightEasy to carry – less than a pound Includes padded nylon carrying case with shoulder strap and belt loop • Accuracy to ±0.03%Within ±0.02 mA from 4 to 20 mA • Long lasting alkaline batteriesThree “9V” batteries last many shifts Optional AC adaptor for bench use • “Quik-Chek®”...
    Page 2 Operating instructions Recalling Quik-Chek outputsInstantly output 4.00 or 20.00 mA by moving the Quik-Chek switch to the 4.00mA / 0.0% position or 20.00mA / 100.0% position. For fast three point checks select the ADJUST position. The Model 334A automatically remembers the last ADJUST value, even with the power off. Note: The same ADJUST value is stored for both mA and %. The recalled value will be displayed in the units you have selected. Open loopsThe display will indicate 0.00 mA or -25.0% if there is...
    Page 3 Operating instructions Source milliampsmA OUT, % OUT (Percent of 4 to 20 mA) Choose this function to provide an output from 0.00 to 24.00 milliamps. The compliance voltage is a nominal 24 VDC to provide the driving power to your milliamp receivers. 1) Disconnect one or both input wires from the device to be calibrated. 2) Move the slide switch to mA or % 4 to 20 mA and move the left hand toggle switch to SOURCE. 3) Connect the red SOURCE lead of the calibrator to the plus (+) input of the device and the...
    Page 4 PN 1887748 Rev A April 2002 ©2002 Altek Industries, Inc. Specifications subject to change without notice. All rights reserved. Printed in U.S.A. Specifications (Unless otherwise indicated, specifications are for 1 year in ±% of reading @ 23°C) GeneralAccuracy: Quik-Chek 4 & 20 mA ±(0.03% of Setting + 1 LSD) Milliamp & % Ranges ±(0.05% of Reading + 1 LSD) Read DC Volts ±(0.05% of Span + 1 LSD) Warm Up Time: 10 seconds to specified accuracy, 2 minutes to maximum accuracy Temperature Effect: Milliamp...
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