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Wire
Color
Description
Note
Red
24±4 VAC 50-60 Hz @ 250 mA or
+24±4 VDC @ 250 mA
Connect to 24VAC transformer or
DC power supply positive
Black (-) Isolated supply common
Connect to 24VAC transformer common
or DC power supply common
Green /
Yellow Earth connection (required to operate)
See Section 3.5.2 for assistance in
locating a suitable building earth connection
Analog Output
Blue
(+) Isolated analog output
May configured as:
4-20mA, 0-10V or 0-5V output
Brown (-) Analog output common
Use for analog signal only
Scaled Pulse Output
Gray
Scaled output, isolated dry contact,
50 VDC @100 mA maximum
Dry contact scaled to provide one pulse
per volumetric unit. Examples:
1 pulse per 10 gal.
1 pulse per 100 gal.
Violet Scaled output, isolated dry contact,
50 VDC @100 mA maximum
Frequency Output
Green (+) Isolated frequency output,
0-500 Hz maximum
Required when meter is connected to local
display or BTU meter
Yellow (-) Frequency output common
Alarm Output
Orange Alarm output, Isolated dry contact,
50 VDC @100 mA maximum
Dry contact alarm output. Closed contact
indicates, empty pipe or excessive electrical
noise.
White Alarm output, Isolated dry contact,
50 VDC @ 100 mA maximum
Earth wiring connections for use with grounding rings
Grounding Rings
