WMP-SERIES INSTRUCTIONS
Seametrics • 253.872.0284
Page 3
seametrics.com
Unobstructed Flow
Features
Seametrics Fitting Kit
for 2 & 3 inch model
Specifications*
Cross-drilled screws (2) for
tamper-evidence
Corrosion-resistant glass-filled polypropylene body
Lightweight for easy handling
Powder-coated diecast aluminum electronics housing
LCD rate and total indicator
316SS electrodes
Polyethylene protective cover
Pipe Size
1, 2, or 3 inch full port
Fittings
1 inch NPTF, 2 or 3 inch flange clamps with 2 or 3 inch NPTF fitting kit
Pressure
150 psi or 10.3 bar working pressure @ 70˚ F
Operating Temperature Range
Operating: 10˚ to 130˚ F (-12˚ to 54˚ C), Non-operating: -40˚ to 176˚ F (-40˚ to 80˚ C)
Accuracy
±1% of reading (between 10% and 100% of maximum flow)
±3% of reading (between cutoff and 10% of maximum flow)
Flow Range
Minimum
1”:
2.3 gpm (0.145 l/s)
2”:
6 gpm (0.38 l/s)
3”:
14 gpm (0.88 l/s)
Maximum
1”:
110 gpm (6.94 l/s)
2”:
300 gpm (18.9 l/s)
3”:
670 gpm (42.3 l/s)
Materials
Body
Glass-filled polypropylene
Electrodes
316 stainless steel
Electronics Housing
Power-coated diecast aluminum
Display Cover
Polyethylene
Display
Rate
Total
Digits
6
8
Units
Gallons/Minute, Million Gallons/Day,
Cubic Feet/Second,
Cubic Feet/Minute, Liters/Second, Liters/Minute,
Million Liters/Day, Cubic Meters/Minute,
Cubic Meters/Hour
Acre-Feet, Acre-Inch, Gallons, Gallons x 1000,
Cubic Feet, Liters, Megaliters, Cubic Meters,
Cubic Meters x 1000
Security
Cross-drilled screws and tamper-evident seal (optional)
Power
WMP101
10–30 Vdc @ 60 mA maximum (15 mA average)
Note: Using an unregulated power supply >18 Vdc may damage the meter due to AC line input voltage
fluctuation.
WMP104
6 - AA alkaline cells, replaceable. Estimated life is 1 year depending on usage (standard)
2 - C lithium batteries, replaceable. Estimated life is 2–4 years depending on usage (extended battery life opt)
Pulse Output Signal
(WMP101 only)
Current sinking pulse, opto-isolated, 32 Vdc maximum @ 10mA maximum
Pulse Rate
Low Frequency (-PxU)
1 unit/pulse out, pulse width of 10 ms, depending on unit selection
(WMP101 only)
High Frequency (-HF)
1” 2”
3”
Pulse width 1.1 ms, min–max frequency, 3–150 Hz
Pulse/Gal
80
30
13
Pulse/Liter
21.14
7.93
3.44
Empty Pipe Detection
Hardware/software, conductivity based
Conductivity
>20 microSiemens/cm
Environmental
NEMA 4X standard
Electrical Connection
(WMP101 only)
5-pin male circular connector, mates to industry standard cable
*Specifications subject to change • Please consult our website for current data (seametrics.com).
GENERAL INFORMATION
