WMX Electromagnetic Flow Meter

Since 1990, Seametrics flow measurement has been providing high-value flow meters and controls. The guiding principles have been common sense, simplicity, economy and durability. We started with mechanical insertion meters that extended the bottom of the flow range and were easy to repair. Over the years our flow meter product family has expanded to include electronic turbine flow meters, inexpensive and highly accurate mechanical low-flow meters, and a variety of flow meter controls and displays. In recent years Seametrics has become a leading manufacturer of electromagnetic meters (mag meters) in a variety of designs suitable to a wide range of applications. These include insertion, spool, and low-flow chemical-resistant mag meters.

WMX Series Electromagnetic Flow Meter 

GENERAL INFORMATION

The WMX seametrics flow measurement Series are flanged electromagnetic flow meters for use in 3” to 10” pipe in municipal or industrial water and waste water applications where propeller meters have typically been used in the past. Because the WMX seametrics electromagnetic flow meters has no moving parts and has electrodes designed to discourage fouling, this magnetic flow meter performs well and requires much less frequent maintenance in applications where debris would impede propeller meters. There is no rotor to stop turning or bearings to wear out. Minimal straight pipe requirements allow WMX-Series meters to be used in piping configurations where there is little space between the meter and an elbow. 

In chemical injection applications, the chemical injection point must be placed downstream of the electromagnetic flow meter OR far enough upstream for complete mixing to occur before the fluid reaches the meter. 

The submersible units, for electromagnetic flow meter IP68 option, are rated IP68 (NEMA 6P) for applications where the flow meters may be under water up to a depth of 3 meters for prolonged periods of time.

Rate and total indication are standard on both models. Units are customer-selected and factory-set. No set-up is required. The WMX101 electromagnetic flow meters is externally powered with 8-32 Vdc at 30 mA max (see NOTE in Specifications). Two Lithium 3.6V “AA” batteries provide auxiliary power during power failures, allowing the meter to continue recording flow rate and total without interruption for the duration of the outage. Where external power loss is infrequent, battery life exceeds 10 years.

The 20-foot power cable also provides pulse output for use with a variety of Seametrics and other displays and controls for remote reading, data logging, pulse-to-analog conversion, and telemetry applications. High frequency pulse rate (required for use with 4-20 mA converters) is standard; additional pulse rates are optional.

The WMX104 electromagnetic flow meters  is a battery-operated unit for use when pulse output is not required. Two Lithium 3.6V “D” batteries provide power and are replaceable with an approximate 1-year life under continuous use, or more depending on the duty cycle. An optional input/output cable can be installed post-factory if needed for changing applications.

Specifications : 

Pipe Sizes			3”,4”, 6”, 8”, 10”
Fittings			ANSI 150 lb. drilling
Pressure			150 psi (10.3 bar) working pressure
Temperature  Operating			10˚ to 130˚ F (-12˚ to 54˚ C)
Non-Operating			-40˚ to 158˚ F (-40˚ to 70˚ C)
Accuracy			+/- 1% of reading for flow between 10
Materials	Body (3” Only)		Ductile cast iron, powder coated w/NSF61 listed epoxy powder
	Body (4”-10”)		Welded steel, epoxy-coated
	Liner (3” Only)		Noryl®
	Liner (4”-10”)		Dual durometer rubber
	Electronics Housing		Diecast aluminum, powder-coated (non-IP68)				Ductile Cast Iron (IP68)
	Electrodes		316 stainless steel
	O-ring (3” Only)		EPDM
Display	Digits		Rate			Total
			5			8
	Units		Gallon/Minute, Liter/Minute, Liter/Second, Cubic Feet/Minute, Cubic Meter/Hour, Million Gallon/Day, Mega Liter/Day			Gallon, Gallon x 1000, Liter, Liter x 1000, Mega Liter, Cubic Meters, Cubic Meter x 1000, Cubic Feet, Million Gallon/Day, Mega Liter/Day  Cubic Feet x 1000
Power			WMX101:8-32 Vdc at 30 mA max, with auxiliary battery for continuous operation during power failures NOTE: Using an unregulated power supply >18 Vdc may damage the meter due to AC line input voltage fluctuation
			WMX104 : 2 Lithium 3.6V “D” batteries, replaceable, 1 year life under continuous use
Pulse Output		Signal	WMX101 : Current sinking pulse, opto-isolated, 30 Vdc at 10 mA max
			WMX104 : Pulse output available only with addition of post-factory output cable
		Pulse Rates	High Frequency (default); 10 units/pulse; 100 units/pulse; 1000 units/pulse
		High Frequency (pulse/gal)	3”	4”	6”			8”	10”
			25.228	16.362	6.307			3.344	2.150
Conductivity			>20 microSiemens/cm
Empty Pipe Detection			Hardware/software, conductivity-based
Environmental			NEMA 4X Standard (IP68/NEMA 6P Option )