DWM1000/DWM2000
20Pages

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Catalog excerpts

DWM1000/DWM2000 - 1

Technical Datasheet Electromagnetic Flow Switch and Flow Meter • For measuring electrically-conductive liquids, pastes and slurries • Optional digital display • No moving parts, maintenance-f

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DWM1000/DWM2000 - 2

The electromagnetic flow controller The DWM 1000 electromagnetic flow switch and the DWM 2000 electromagnetic flow meter monitor the flow of electrically-conductive liquids, pastes and slurries. The DWM 1000 uses an induced voltage converted into a switching signal. The DWM 2000 uses an induced voltage converted into a 4...20 mA current output that is proportional to the flow velocity. Highlights • DIP switch for setting full-scale value • Zero calibration button removes zero drift • Long version available for pipes larger than 400 mm / 16" in diameter • Optional ball valve for long version...

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DWM1000/DWM2000 - 3

Variants DWM 1000 The DWM 1000 flow switch is an insertion-type, two wire system. The switching point is adjustable over a full-scale range of 0.1...9.9 m/s or 0.3...32.5 ft/s. Amplifier relays are also available for a selection of AC and DC voltages. A welding socket is supplied as standard for welding the DWM 1000 directly onto process pipes. It is suitable for pipe diameters DN50...400. An optional spool piece can be used to install the instrument without a welding operation. DWM 2000 The DWM 2000 flow meter is an insertion-type instrument. Full scale range is a adjustable from 1...8 m/s...

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DWM1000/DWM2000 - 4

Options LCD Indicator The DWM 2000 D flow meter is equipped with a two-line, 16-character LCD. It indicates flow velocity on the first line and flow rate on the second. It can also be used to calibrate the DWM 2000 onsite. This can be retrofitted to all DWM 2000 variants, except those with the IP68 stainless steel housing option. IP68 stainless steel housing The IP68 stainless steel housing has been designed for immersed applications. It is a sealed unit and all calibration is carried out before delivery. DWM 1000 and 2000 instruments with the IP68 stainless steel housing option can also be...

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DWM1000/DWM2000 - 5

Spooling piece Spooling pieces are available for pipe diameters DN25...50 or 1...2". These have a standard length of 200 mm / 7.9". FT Tuchenhagen connection An option developed for hygienic applications. Tuchenhagen VARIVENT® housings are supplied on demand with DWM 1000 FT and 2000 FT instruments.

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DWM1000/DWM2000 - 6

Flow meter with 4…20 mA output For monitoring flow velocity in pipes or open channels User interface Options None; 2-line LCD indicator with 4-button keypad Interface languages English, French or German Display units, 1st line Display units, 2nd line (optional) ±5% of the measured value (± 2% if calibrated onsite) Measurement accuracy Repeatability Accuracy Reference temperature Reference pressure 1013 mbar abs. ±20 mbar / 14.69 psig ±0.29 psig Reference relative humidity Full-scale range 8%, when flow velocity decreas

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DWM1000/DWM2000 - 7

Operating conditions Ambient temperature Process temperature without stainless steel housing (IP68) option with stainless steel housing (IP68) option Max. allowable operating pressure Electrical conductivity Protection category acc. to EN 60529 standard variant with long sensor option with stainless steel housing (IP68) option Installation conditions Minimum inlet run 10 x nominal diameter, depending on the flow profile 5 x nominal diameter, depending on the flow profile Pipe material Electrically conductive materials, refer to the handbook for other materials

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DWM1000/DWM2000 - 8

Materials Housing without stainless steel housing (IP68) option Aluminium with epoxy finish with stainless steel housing (IP68) option Sensor casing Sensor insulation Ceramic (Zirconium oxide) Welding sleeve for T-mounting Spool piece (option) Safety chain, for long sensor option Zinc-plated steel Isolation valve (option) Nickel-plated brass Tuchenhagen connection (option) Cable entry Nickel-plated brass Gasket, sensor Gasket, connection Klingerit (without asbestos) Gasket, housing cover Gasket, Tuchenhagen connection (option) Process connections with standard fitting G 1A; Screw-on welding...

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DWM1000/DWM2000 - 9

Instrument terminal Relay options for instrument terminal Power consumption Protective earthing load 1 Cable entry Cable tightening capacity Length of cable for stainless steel housing (IP68) option Time constant Power supply Input and output Output signal Options Options Spooling piece, see also "Process connections" IP 68 stainless steel housing; Long sensor, 500 mm / 20" length; Long sensor, 1000 mm / 40" length (up to 3 m / 10 ft on request) Welding socket G 1½ isolation valve, for long sensor option NPT 1½ process connection adapter, for G 1½ isolation valve Relay - Digital indicator C...

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DWM1000/DWM2000 - 10

Dimensions and Weight Standard sub-variants 1 DWM 1000 or DWM 2000 with optional welding socket 2 DWM 2000 D (with LCD indicator) with optional welding socket 3 DWM 1000 or DWM 2000 with spool piece for inline connection • PG13.5 cable glands are supplied as standard • LCD indicators can be retrofitted to all DWM 2000s with aluminium housings

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DWM1000/DWM2000 - 11

Standard sub-variants without spool piece: Dimensions and Weight in mm and kg Dimensions [mm] a Without LCD indicator Standard sub-variants without spool piece: Dimensions and Weight in inches and lbs Dimensions [inches] a Standard sub-variants with spool piece: Dimensions and Weight in mm and kg Dimensions [mm] ND With spool piece, PN40 With spool piece, ANSI 150 lbs With spool piece, ANSI 300 lbs Standard sub-variants with spool piece: Dimensions and Weight in inches and lbs Dimensions [inches] ND With spool piece, PN40 With spool piece, ANSI 150 lbs With spool piece, ANSI 300 lbs

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DWM1000/DWM2000 - 12

Long sub-variants 1 DWM 1000 L or DWM 2000 L with safety chain, optional G 1½ isolation valve and optional welding socket or NPT 1½ adaptor 2 DWM 2000 L with LCD indicator, safety chain, optional G 1½ isolation valve and optional welding socket or NPT 1½ adaptor • PG13.5 cable glands are supplied as standard • A safety chain is supplied as standard with DWM 1000 L and DWM 2000 L instruments • LCD indicators can be retrofitted to all DWM 2000s with aluminium housings

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