ABB IEMMU01 Module installation unit

ABB IEMMU01 Module installation unit

Average these measurements to reduce uncertainty. This average represents the offset. Next, subtract the offset from all subsequent measurements. Notice that offset changes with gain; thus, during calibration the channel should be set to the gain at which the subsequent measurements will be taken. Gain Adjustment Gain adjustment requires you to apply two different input signals, rather than one as for offset adjustment. One of the two points is typically zero, because zero is easy to generate with a high degree of accuracy. The other should be near full scale, either a DC-voltage from a precision calibrator or a voltage generated by application of a known excitation to the transducer being used. Of course, you should generate both signals–zero and full-scale–from the same source

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