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Calibration description – HP VXI E1432A User Manual

Page 120

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Calibration Description

The Cal connector on the front panel of the standard HP E1432A can be
configured (in software) as either an input or an output. It can be set to
any of four settings:

q

DC - The HP E1432A outputs a DC calibration signal from the millivolt range up
to 15 volts.

q

AC - The HP E1432A outputs a signal from an Arbitrary Source option (in the
same module or a different HP E1432A module in the system.)

q

Ground - The connector is shunted to ground for a zero-volt reference.

q

Open Circuit - In this mode the connector becomes an input which can receive a
calibration signal up to +/-15 volts.

The HP E1432A is calibrated at the factory and the calibration placed in
EPROM memory for use at each power-up. In addition an auto-zero
function is provided.

to ADC

Input circuitry

Front panel connector

CALIN

CALOUT

VXI SUMBUS

monitor

trigger

DC Voltage

Output

from

achometer

T

Reference

Source

HP E1432A Substrate

DC_BUS

from

Figure 5-12: Calibration block diagram

HP E1432A User's Guide

Module Description

5-15

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