L4452a verification, Dac output verification test, L4452a multifunction module – Agilent Technologies L4400 User Manual

Page 273

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L4451A and L4452A Calibration Procedures

A

L4400 User’s Guide

261

L4452A Multifunction Module

Verification and calibration of the L4452A Multifunction Module is
limited to channels 6 and 7 which are the DAC (voltage) output channels.

L4452A Verification

The test connection for verifying the DAC output voltage on channels 6
and 7 of the L4452A are shown in Figure A- 3.

HI

I

DMM

L4452A Terminal Block

LO

twist wires

HI

LO

Figure A-3. L4452A DAC Output Connections (Channels 6 and 7).

DAC Output Verification Test

This procedure is used to check the calibration of the DAC outputs on
channels 6 and 7 of the L4452A. Verification checks are performed only
for those output values with unique calibration constants.

1

With the DMM disconnected from the L4452A, set the DMM to the
100V range or the lowest range that can measure 16V (do not use
autorange).

2

Short the inputs to the DMM. The DMM reading is the offset voltage
for the selected range. If the DMM has “null” capability, turn it on at

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