Tektronix VX4234, User Manual

Page: 83 / 92

Appendix F: Performance Verification
A–32
VX4234
5. Using the following commands, set the VX4234 to read DC volts on the
2
0
mV range (Function 1, Range 1). Perform two acquisitions and verify the
second response to be
≤
2.24 mV (Note: The first reading returned is stale
data).
set VX4234
ibwrt "F1R1"
ibrd 100
(Disregard this reading.)
ibrd 100
(Observe: 3 [+/–].002239 . .)
6. Power down the VXI system, remove the VX4234-under-test and set the
5
0
/6
0
Hz reject switch to the 5
0
Hz position. Reinstall the VX4234
under-test and power-on the system.
7. Set the Calibrator to +1
0
.
0
V, 5
0
Hz.
8. Perform two acquisitions and verify the second response to be
≤
2.24 mV.
ibrd 100
(Disregard this reading.)
ibrd 100
(Observe: 3 [+/–].002239 . .)
9. Set the Calibrator to +0.0000 mV DC.
10. Reset the VX4234-under-test 6 0 Hz reject switch to the AC power source
frequency being used by the VXI system.
This sequence verifies the accuracy of the six DC Current ranges.
Equipment
Requirements Calibrator (item 1)
Coaxial Cable, one (item 2)
Dual Banana Connector, two (item 3)
Prerequisites All prerequisites listed on page A–22
1. Set the Calibrator to + 0 . 0000 mV (If using the Fluke 57 00 A, press the clear
button twice).
2. Connect the Calibrator to the VX4234 Voltage input using two Dual-Banana
connectors and a Coaxial cable.
DC Current Accuracy