User Manual 9250
Portrayal 3-5
Input/Output
Impedance
Equipment:
DMM
Preparation:
1. Perform test with the 9250 placed on the desk, power re-
moved
Test Procedure:
1. Set DMM to Resistance measurements and 200
Ω
Range.
Connect the DMM probes across the 9250 channel 1 input
and verify DMM reading of 50
Ω
,
±
2%
2. Repeat the test for all inputs and outputs. Do not measure the
DC Offset terminals on the rear panel
Test Results
Pass
Fail
Gain Accuracy
Equipment
: DMM, Function generator
Preparation
:
1. Configure the Function Generator as follows:
2.
Function:
Sine wave
3.
Frequency: 1kHz
4.
Amplitude: 2Vp-p
5. Connect function generator output to the 9250 channel 1
input
6. Configure the DMM as follows:
7.
Function:
ACV
8.
Range:
20V
9.
Termination: 50
Ω
feed-through at the DMM input
10. Connect the DMM input to the 9250 channel 1 output
Test Procedure
11. Measure and verify DMM reading of 7.143V,
±
142mV
Test Results
Pass
Fail
12. Remove the cables from 9250 channel 1 input/output and
connect to channel 2
13. Repeat the test procedure as above for channel 2
