Specifications

Table Of Contents
Chapter 2 Service
Troubleshooting the Counter
160 Assembly-Level Service Guide
Summary of Remote Self-Test Verification
Send command *TST?
Wait 10 seconds.
Retrieve query result:
0 indicates the self-test PASSED.
Any value other than 0 indicates self-test FAILED.
If the retrieved value is non-zero, read error queue: SYSTem:ERRor?
Read errors until no more errors.
NOTE If you are able to read the error message(s), consult “Error
Messages” starting on page 163 for what to do after receiving a
specific calibration error message.
To Determine the Counter Firmware Version
Older firmware versions may have known or unknown problems in the
code. Verify the firmware for your counter as follows:
1Press the Help key, then the About softkey.