Electrical Connections - Seametrics WMP Series Quick Start Manual

Positioning
Choose a position that will ensure a full pipe.
Recommended:
May prevent sediment
or bubble problems

Electrical Connections

WMP101:
Plug the cable into the meter and hand tighten. Follow the diagram to make
connections. If you are using pulse output, connect power first and determine that the
meter is working properly by observing the display. Then connect the pulse output.
Gray: Pin 5 = Ground
Black: Pin 4 = (–) Power
Blue: Pin 3 = (+) Pulse
White: Pin 2 = (–) Pulse
Brown: Pin 1 = (+) Power
Grounding (WMP101):
For best performance, especially in chemically noisy
environments, the gray ground wire and the bare drain wire
should be connected together and to a good earth ground
as close to the meter as possible. Metal pipe and fittings in
contact with the fluid should also be bonded to the same earth
ground with corrosion-resistant connections.
Intermittent air
bubbles miss electrode
Electrode moved from
top by rotating meter
Electrodes free from
sediment build-up
Shield Drain Wire
Seametrics • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • seametrics.com
Choose a position that will minimize flow distortion.
2X
2X
5X
Not Ideal:
Air bubbles and
sediment on the
electrodes can affect
accuracy
WMP-Series
Quick Start Guide
1X
1X
1X
1X
5X
Intermittent air
bubbles pass
over electrode
Possible
sediment
build-up
WMP104:
No connections needed.
LT-14391r1.0 20161006
10/6/16