Bently Nevada 3300/50, Operation Manual

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Tachometer Maintenance
126 I Test Trigger OKs (Cont.)
TRANSDUCER A
WIRING
I+
J"r.GD
O
PWR
COM
I N
REC
COM
I®I
SIGNAL I N P U T
RELAY MODULE
TRANSDUCER B
WIRING
83871-01
e
TACHOMETER
3600
RPM
SEE MANUAL
A • .77.1', 1'.1 0
1. Disconnect the COM and IN wiring from the Transducer B terminals on the Signal Input Module.
2. Verify that the TRIGGER OK B LED turns off.
NOTE: With low RPMs at one event per revolution, it may take up to one minute for the TRIGGER
OK LED to indicate NOT OK
3. Reconnect the COM and IN wiring from the Transducer B terminals on the Signal Input Module.
4. Verify that the TRIGGER OK B LED turns back on.
NOTE: With low RPMs at one event per revolution, it may take up to several minutes for the
TRIGGER OK LED to indicate OK.
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