R&S ZVA8, Service Manual

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R&S ZVA Performance Test
1177.5333.02 1.15 E-11
Checking the DC Measurement Inputs
Test equipment:
DC Power Supply NGSM 32/10 (see Chapter “Test Equipment“, Item 10)
Multimeter URE3 (see Chapter “Test Equipment“, Item11)
DC cable (see Chapter “Test Equipment“, Item12)
Test setup: Connect the Power Supply to the Input DC MEAS 1V (DC MEAS 10V) of
the ZVA using the DC cable
R&S
®
ZVA settings:
- [ Preset ]
For DC Meas 1 V:
- [
Meas : More : DC Inputs : DC Meas

1 V]
- [ Format : Real]
- [ Scale : Scale/Div : .25 x1]
- [ Marker ]
For DC Meas 10 V:
- [
Meas : More : DC Inputs : DC Meas

10 V]
- [ Format : Real]
- [ Scale : Scale/Div : 2.5 x1]
- [ Marker ]
Measurement: Set Power Supply to DC values U
DC
using Multimeter URE (DC values
see Performance Test Report) and connect it to pos. and neg. input
Read off the DC level U
DC ZVA
indicated by the marker.
Calculation:
Deviation = U
DC
-
U
DC ZVA