Appendix A Performance Tests
5071A Operational Verification
140 Operating and Programming Manual
5071A Operational Verification
Power-On Self-Tests and Servo Lock
1 Inspect the 5071A for any damage (see the section titled Initial Inspection in
Chapter 7 for detailed inspection information).
2 Ensure that the ac-power setting, ac-line fuse (rear panel), and supplied power
cord are appropriate for the ac-power source. (Refer to Chapter 7, ―Installation,‖
for detailed information.)
3 Now, apply power to the instrument by connecting ac-power source to the
instrument via the ac power cord. The amber Attention light is lit indicating
normal power-up sequence and the following messages are displayed on the LCD
in sequence:
The message ―Waiting for Stabilization‖ may appear. If so, it could stay on for
up to 20 minutes before the following messages appear.
a. Warming up (this indicates self-test passed successfully)
b. Lowering E_mult voltage
c. Setting Osc. Control
d. Setting RF amplitude
e. Setting E_mult voltage
f. Logging signal levels
g. Setting C-field
h. Locking servo loops
i. Operating normally
4 After about 15 minutes (typically), the Attention (amber) light goes out and the
Continuous Operation (green) light flashes. This indicates that all servo loops
have locked and the instrument is operating normally.
5 Press Shift, then 5 (Utilities).
LCD display shows RESET.
6 Press Enter.
This resets the continuous operation circuit, causing the light to be on
steadily. Any subsequent fault will cause the Continuous Operation
light to go out or flash.
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