Description
Scope of This Manual
This manual serves several purposes:
§
It will help you install the DCX-127 Multifunction Module. In
addition to the instrument capabilities, descriptions of all
connectors are given.
§
It presents specifications of the DCX-127.
§
It contains some fundamental APWIN assistance relating to the
use of the DCX-127.
Introduction
The DCX-127 Multifunction Module contains an autoranging 4-1/2
digit dc voltmeter-ohmmeter, two 20-bit programmable dc voltage
sources, 21 bits of digital I/O, and three 8-bit programmable auxiliary
output ports for device control or status indicators. Typical applications
include A/D and D/A converter testing, VCA gain control linearity, VCA
distortion, amplifier dc offset and power supply checks, power amplifier
load switching control, loudspeaker voice coil resistance
measurements, temperature measurements, and test fixture control.
The DCX-127 also provides pulses and dc levels whose timing
depend upon key software actions such as end of sweep, analyzer
channel selection, or data settling. These may be used for
synchronization and sequencing of external devices or portions of the
test system such as the triggered sine burst generator.
The DCX-127 functions include:
§
DC voltage and resistance measurement from 200 mV to 500 V
and 200
W to 2 MW
full scale, fully floating and guarded for
accurate measurements in the presence of large common mode
voltages. Readings can be offset and scaled by the software.
DCX-127 Multifunction Module User’s Guide
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