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VX4101A MultiPaq Instrument User Manual
1–11
The self-test for the Counter tests the following components:
H The two 4 Kb Counter measurement buffers.
H Logic registers
H The analog front end pre-amp offset, pre-amp inverter, and pre-amp gain
digital to analog converters (DACs).
H A 2.5 MHz signal is routed in through a test source and checked for
accuracy.
The self-test for the Digital Input and Digital Output includes a test of the Digital
Output hardware, as well as read/write/verify tests on shared memory and
read/write control registers.
The DMM self-test includes RAM testing, power supply and DMM reference
testing, amplifier and analog to digital converter testing, and control circuitry
testing. The self-test for the DMM tests the following components:
H The two 4 Kb DMM measurement buffers
H Logic registers
H Measurements of Ground are taken at the 30 mV DC range, 3 VDC range,
and 300 mV AC/DCV range
H The 2.75 V reference is tested in the 3 V range
The DAC performs the following self-test procedure:
H Read/write/verify test on shared memory
H Read/write/verify on all read/write control registers
There is no self-test for the Relay Drivers.
There is no automatic self-test for SurePath
t modules. You use the TEST:ALL?
query to test the control logic and data path for both the VX4101A and the
SurePathtcard in use. For more information on the TEST:ALL? query, see SCPI
Commands for the SurePath Modules in this manual
Counter Self-Test
Digital Input and Output
Self-Test
DMM Self-Test
DAC Self-Test
Relay Drivers Self-Test
SurePatht Module
Self-Test