3500/42 Operation and Maintenance
Maintenance
105
2X Amplitude (2X Ampl)
Note
The Keyphasor must be triggering and have a valid rpm value to check this
parameter.
1. Disconnect PWR, COM, and SIG field wiring from the channel terminals on
the I/O module.
2. Connect test equipment and run software as described in Section 5.1.5.1
(Test Equipment and Software Setup - Radial Vibration).
3. Set the Keyphasor multiplier/divider so that the multiply setting is one and the
divide setting is two. Adjust the function generator amplitude to produce a
reading that is within the 2X Ampl setpoint levels on the 2X Ampl bar graph
display of the Verification screen.
4. Press the RESET switch on the Rack Interface Module (RIM). Verify that the
OK LED is on, the bar graph indicator for 2X Ampl is green, and the Current
Value field has no alarm indication.
5. Adjust the function generator amplitude such that the signal just exceeds the
2X Ampl Over Alert/Alarm 1 setpoint level. Wait 2 or 3 seconds after the
alarm time delay expires and verify that the bar graph indicator for 2X Ampl
changes color from green to yellow and that the Current Value Field indicates
an Alarm.
6. Press the RESET switch on the Rack Interface Module (RIM). Verify that the
bar graph indicator for 2X Ampl remains yellow and that the Current Value
Field still indicates an Alarm.
7. Adjust the function generator amplitude such that the signal just exceeds the
2X Ampl Over Danger/Alarm 2 setpoint level. Wait for 2 or 3 seconds after
the alarm time delay expires and verify that the bar graph indicator for 2X
Ampl changes color from yellow to red and that the Current Value Field
indicates an Alarm.
8. Press the RESET switch on the Rack Interface Module (RIM). Verify that the
bar graph indicator for 2X Ampl remains red and that the Current Value Field
still indicates an Alarm.
9. Adjust the function generator amplitude such that the signal reads below the
Over Alarm setpoint levels. If the nonlatching option is configured, observe
that the bar graph indicator for 2X Ampl changes color to green and that the
Current Value Box contains no indication of alarms. Press the RESET switch
on the Rack Interface Module (RIM) to reset latching alarms.
10. Repeat steps 3 through 9 to test the Under Alert/Alarm 1 and Under
Danger/Alarm 2 setpoints by adjusting the function generator amplitude to
exceed the Under Alarm setpoint levels.
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