Description
3500/65-01-00 The following sections describe how to test alarms, verify channels, and test OK
limits for channels configured as Eccentricity. The output values and alarm
setpoints are verified by varying the input Eccentricity 3500/65-01-00 signal level (both peak to
peak amplitude and DC voltage bias) and observing that the correct results are
reported in the Verification screen on the test computer.
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3500/65-01-00 The general approach for testing alarm setpoints is to simulate the eccentricity
signal with a function generator and power supply. The alarm levels are tested
by varying the output from the test equipment and observing that the correct
results are reported in the Verification screen on the test computer. It is only
necessary to test those alarm parameters that are 3500/65-01-00 configured and being used.
The general test procedure to verify current alarm operation will include
simulating a transducer input signal and varying this signal:
-
- to exceed over Alert/Alarm 1 and Danger/Alarm 2 Setpoints.
- to drop below any under Alert/Alarm 1 and Danger/Alarm 2 Setpoints.
- to produce a nonalarm condition.
3500/65-01-00 Peak to Peak
- Disconnect PWR, COM, and SIG field wiring from the channel terminals on
the I/O module.
- Connect test equipment and run software as described in Section 5.1.7.1
(Test Equipment and Software Setup – Eccentricity).
- Adjust the function generator amplitude such that 3500/65-01-00 the signal level does not
exceed any setpoint value for the pp mil bar graph.
- Press the RESET switch on the Rack Interface Module (RIM). Verify that the
OK LED is on, the bar graph indicator for pp is green, and the Current Value
field has no alarm indication.
- 3500/65-01-00 Adjust the function generator amplitude such that the signal just exceeds the
pp Over Alert/Alarm 1 setpoint level. Wait for 2 or 3 seconds after the alarm
time delay expires and verify that the bar graph indicator for pp changes color
from green to yellow and that the Current Value Field indicates an Alarm.
- Press the RESET switch on the Rack Interface Module (RIM). Verify that the
bar graph indicator for pp remains yellow and that the Current Value Field still
indicates an Alarm.
- 3500/65-01-00 Adjust the function generator amplitude such that the signal just exceeds the
pp 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 pp
changes color from yellow to red and that the Current Value Field indicates
an Alarm.
- Press the RESET switch on the Rack 3500/65-01-00 Interface Module (RIM). Verify that the
bar graph indicator for pp remains red and the Current Value Field still
indicates an Alarm.
- 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 pp 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.
- If you can not verify any configured alarm, recheck the configured setpoints.
If the monitor still does not alarm properly or fails any other part of this test,
go to Section 5.1.11 (If a Channel Fails a Verification Test).
- 3500/65-01-00 Disconnect the test equipment and reconnect the PWR, COM, and SIG field
wiring to the channel terminals on the I/O module. Verify that the OK LED
comes on and the OK relay energizes. Press the RESET switch on the Rack
Interface Module (RIM) to reset the OK LED.
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