Test Ok Limits - GE Bently Nevada 3300/25 Operation Manual

3300/25 Dual Accelerometer Input Monitor Operation Manual
WARNING
High voltage present. Contact could
cause shock, burns, or death.
Do not touch exposed wires or
terminals.
Before bringing the monitor on line, use this procedure to check that the OK Limits for
channels A and B are working properly. You will need a multimeter and a power supply.
NOTE: If your monitor is configured for a single transducer input then you should bypass
the channel which is not under test
channel under test is controlling the OK Relays. Be sure to remove Channel
Bypass at the end of this procedure.
1. Disconnect Transducer
input wiring from the channel
A terminals on the Signal
Input Relay Module.
2. Connect the multimeter
and power supply as shown
34

14. Test OK Limits

(see section 11)
Caution
Tests will exceed alarm setpoint
levels causing alarms to activate.
This could result in relay contacts
changing state. See Danger
Bypass, Section 12.
so that you can verify that the