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85330A Multiple Channel Controller 2-11
Performance Verification
Verifying the Multiple Channel Controller
Measurement Busy
Signal and Pulse
Width Test
The following test will determine if the MEAS BUSY port output pulse
width is correct. It will also test the EVENT TRIG input.
1. Connect a BNC cable between the SRC1 TRIG and EVENT TRIG
connectors.
2. Connect a BNC cable between the MEAS BUSY connector and the
oscilloscope channel 1.
3. On the oscilloscope press:
[TIME BASE] {10 us/Div} [CLEAR DISPLAY]
4. Press the following on the multiple channel controller:
[Clear Instr] [Select Instr] {85330A} [More] {TEST} {EVENT} [1] [Return]
5. While the measurement is cycling, observe the MEAS BUSY pulse on
the oscilloscope. The pulse width should be approximately 50
microseconds.
6. If the test is successful the RCVR menu will appear on the display. If the
test fails, the following error message will appear:
-214, Trigger deadlock