User Manual 9260
3-4 MAINTENANCE, PERFORMANCE CHECKS and ADJUSTMENTS
Performance
Checks
The performance of the 9260 should be checked to verify proper
operation of the instrument and should normally be used:
1. As a part of the incoming inspection of the instrument specifi-
cations;
2. As part of the troubleshooting procedure;
3. After any repair or adjustment before returning the instrument
to regular service.
Environmental
Conditions
Tests should be performed under laboratory conditions having an
ambient temperature of 25
C,
5
C and at relative humidity of less
than 80%. If the instrument has been subjected to conditions outside
these ranges, allow at least one additional hour for the instrument to
stabilize before beginning the adjustment procedure.
Warm-up Period
Most instruments are subject to small amount of drifts when first
turned on. To ensure accuracy, turn on the power to the Model 9260
and allow it to warm-up for at least 10 minutes before beginning the
performance test procedure.
9260 Configuration
for the Tests
The 9260 is tested using the factory recommended configuration. The
instrument should be configured as follows for the performance tests:
Input impedance = 50
; Output impedance = 50
; Gain = 10;
Coupling = DC. Other configurations can be tested but slight
degradation of performance should be considered, as specified in
Appendix A
Recommended
Test Equipment
Recommended test equipment for troubleshooting, calibration and
performance checking is listed below. Test instruments other than
those listed may be used only if their specifications equal or exceed
the required characteristics.
Table
3-1, Recommended Test Equipment
Equipment
Model No.
Manufacturer
Oscilloscope
DSO9404A
Keysight
Digital Multimeter
2000
Keithley
Spectrum Analyzer
FSP3
R&S
Pulse Generator
PM8571A
Tabor Electronics