Testing Calibration and Relays
Entek IRD 6687 Protection Monitor
27
Refer to the following diagram for the correct connections between the monitor and the
testing equipment. This diagram shows the typical signal inputs and connections for testing
6600 protection monitors.
Note:
1.
Transducers may be simulated directly at the backplane as shown or elsewhere. If this
involves application via barriers, ensure that the barrier rating is not accidentally
exceeded.
2.
Verify the DC source voltage with a DVM at the monitor terminal strip.
TYPIC AL SIGN AL INPUTS FOR TESTING
6687 TWO CHAN NEL MON ITOR
6 6 8 7 TE RM I N AL S
1 A N D/ O R 3
[ S I G N A L I NP U T ]
2 [ CO M M O N ]
DC S O U R C E
S E E A L S O N O T E 1
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+