Emerson ROC827 - Page 105

ROC800-Series Instruction Manual
Revised July-2017 Input/Output Modules 4-19
DENSITOMETER
GENERIC
-
+
+T
PI
PI
-
+
DRY CONTACT
ROC800 POWERED
+
OPEN COLLECTOR
EXTERNALLY POWERED DEVICE
OR
OPEN DRAIN TYPE
-
Figure 4-18. Generic Densitometer Wiring on APM
Figure 4-19. Input Detector Wiring on APM
DET SW 1 DET SW 2
DET SW 1 DET SW 2
Figure 4-20. Series Detector Switch (Normally
Open) Wiring on APM
Figure 4-21. Series Detector Switch Wiring
(Normally Closed) on APM
DET SW 1 DET SW 2
METER
-
+
METER
COIL 2
-
+
-
+
+T
METER
-
+
POWERED
EXTERNALLY
PREAMP
PREAMP
EXTERNALLY POWERED
+T
COIL 1
Figure 4-22. Independent Detector Wiring on APM
Figure 4-23. Two-Pulse Turbine Pulse Input Wiring
on APM