DWM 1000 and DWM 2000

Electromagnetic flowmeters and switches
for measuring and monitoring electrically conductive liquids, pastes and slurries

Versions

	DWM 1000 flow switch, 2-wire system
	DWM 2000 flowmeter, 4 ... 20 mA current output

Special features

	Process temperature: -25 - 150°C  / -13 - 302°F
	Operating pressure: 25 bar / 360 psig
	Rugged design
	No moving parts, maintenance-free
	Wetted parts of stainless steel or ceramics
	Electronic unit replaceable at flowing conditions
	For pipelines > DN 50 / > 2''

DWM 2000 FT

The DWM 2000 FT flowmeter measures the flowrates of electrically conductive liquids, pastes and slurries.

Version
DWM 2000 FT flowmeter, 4-20 mA current output

Special features

	Designed for Tuchenhagen VARIVENT® housings
	Wetted parts made of stainless steel (surface roughness ≤ 0.8 µm), ceramics and FDA-approved  EPDM, crevice-free
	Process temperature up to 135°C or 275°F
	With CIP/SIP capability
	Easy, quick and low-cost installation
	One device for all nominal pipe sizes
	Electromagnetic measuring principle, no moving parts
	Electronic unit replaceable under service conditions

Measuring principle

If an electrical conductor is caused to move in a magnetic field, such movement induces a voltage U in the conductor.

In this case, the conductor is the electrically conductive liquid. Magnetic field B is at right angles to the direction of flow. The induced voltage U is directly proportional to the local flow velocity v.

U = k x B x v xD
k Instrument constant
B Strength of magnetic field v Local flow velocity
D Electrode spacing

Voltage U is tapped off from the electrodes, neutral and ground electrode (socket).

DWM 1000 flow switch Voltage U converted into a switching signal with adjustable switching point.

DWM 2000 flowmeter Voltage U converted into a flow-proportional output signal, load-independent current
4-20 mA.

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DWM 1000 | DWM 2000