Meriam M2110P SMART PRESSURE GAUGE - Manual (Page 28)

28
Note: The Smart Gauge comes with 1/8” FNPT pressure port(s). Gauge and Absolute
models only use one pressure port. The unused port vents the enclosure/sensor to
atmosphere. DO NOT REMOVE THE SINTERED PLUG (ALLEN HEAD FITTING).
The Smart Gauge should be panel-mounted or held firmly in one hand while a small wrench
is used to tighten the 1/8” MNPT pipe thread. Do not tighten the fitting without using a
wrench on the manifold.
DN & DI Manifold
DI Manifold G I , C I and A I Manifold
(Optional Flushing Ports)
Current Loop Model Wiring
+
-
24V
50mA (min)
+24V
+Loop
R
-Loop
-24V
or GRD
Three wire from positive (+) supply: source
24V
50mA (min)
+
-
R
+24V
+Loop
-Loop
-24V
or GRD
Three wire from negative (-) supply: sink
24V
30mA (min)
+
-
24V
+
-
20mA (min)
R
+24V
+Loop
-Loop
-24V
Four wire, non grounded system
Three and four wire 4 to 20 mA loop diagrams
R = Receiving device
Power supplies can
be 15 to 28 Vdc