Bently Nevada 3300/70, Руководство по эксплуатации

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Dual Valve Position Indicator Maintenance
I 9 I LV D T PRIMARY WIRING OK TEST [CONY]
S I G N A L
INPUT M O D U L E
LVDT Shorted Primary OK Test
CAUTION
Tests will cause valve indication on
tested channel to be invalid. Only if
Timed O K / Channel Defeat i s
enabled will the Not OK channel's
bargraph be clamped to zero.
4 \ WARNING
High Voftage present
Could cause shock, bums
or death.
Do Not touch exposed
wires or terminals.
1. With both transducers connected verify the OK LEDs are ON. If
only one channel is being used, Bypass the unused channel (section
8).
2. Short the "1 (CCW)" wire to the "4 (CW)" wire of the Channel A
terminal on the Signal Input Module or at the LVDT.
3. Verify that the OK LED for Channel A is off and that the OK Relay
is de-energized. Note: All other channels in the rack must be OK or
bypassed in order for the relay to change state.
4. Remove the short from between "1 (CCW)" and "4 (CW) terminals
of Channel A and verify the OK
LED turns ON and the "OK Relay" is
energized. System Reset is required if the indicator is configured for
Latching OKs or Timed OK / Channel Defeat.
5. Repeat the above for Channel B.
1 0 3 O f " ) 3 0 0 , 0 i
P A L YAL V£ P J S : T
I T I C A T O R
l e i
16
84608-01
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