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DWM 1000 | 2000

DWM 1000 | 2000
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TD_DWM1-2000_EN_080401.book Page 1 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES Technical Datasheet Electromagnetic Flow Switch and Flow Meter • For measuring electrically-conductive liquids, pastes and slurries • Optional digital display • No moving parts, maintenance-free

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TD_DWM1-2000_EN_080401.book Page 2 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 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...

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TD_DWM1-2000_EN_080401.book Page 3 Friday, April 4, 2008 9:45 AM nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000-2000 SERIES 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...

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TD_DWM1-2000_EN_080401.book Page 4 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 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...

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TD_DWM1-2000_EN_080401.book Page 5 Friday, April 4, 2008 9:45 AM nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000-2000 SERIES 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. www.krohne.com 5

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TD_DWM1-2000_EN_080401.book Page 6 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn Technical data DWM 1000 DWM 2000 Description 2-wire flow switch Flow meter with 4…20 mA output Function For monitoring flow velocity in pipes or open channels Functions User interface Options Flashing LED None; 2-line LCD indicator with 4-button keypad Interface languages - English, French or German Display units, 1st line - m/s Display units, 2nd line (optional) - m³/h ±1% of the switching point ±1% of the measured value when v > 1 m/s or 3.3 ft/s ±5% of...

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TD_DWM1-2000_EN_080401.book Page 7 Friday, April 4, 2008 9:45 AM nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000-2000 SERIES DWM 1000 DWM 2000 Operating conditions Ambient temperature -25…+60°C / -13…+140°F Process temperature without stainless steel housing (IP68) option -25…+150°C / -13…+300°F with stainless steel housing (IP68) option -25…+60°C / -13…+140°F Max. allowable operating pressure 25 bar / 360 psig Electrical conductivity ≥20 µS/cm Protection category acc. to EN 60529 standard variant IP 66 with LCD indicator IP 55 with FT option IP 66 with long sensor option IP 66...

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TD_DWM1-2000_EN_080401.book Page 8 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000 DWM 2000 Materials Housing without stainless steel housing (IP68) option Aluminium with epoxy finish with stainless steel housing (IP68) option 316 L (1.4404) stainless steel Sensor casing 316 L (1.4404) stainless steel Sensor insulation Ceramic (Zirconium oxide) Welding sleeve for T-mounting 316 L (1.4404) stainless steel Spool piece (option) 316 L (1.4404) stainless steel Safety chain, for long sensor option Zinc-plated steel Isolation valve...

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TD_DWM1-2000_EN_080401.book Page 9 Friday, April 4, 2008 9:45 AM nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000-2000 SERIES DWM 1000 DWM 2000 Instrument terminal 48…250 VAC or VDC 12 / 24 VDC Relay options for instrument terminal 230 / 110 / 48 VAC; 110 / 48 VDC - Power consumption 200 mA max. 50 mA max. Protective earthing load 1 <10 Ohms Cable entry PG 13.5 Cable tightening capacity 1.5 mm² or 16 AWG Length of cable for stainless steel housing (IP68) option 10 m / 32½ ft 2 Time constant 5 / 8 / 10 s 5s3 Adjustable threshold 4 4…20 mA, passive Power supply Input and output...

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TD_DWM1-2000_EN_080401.book Page 10 Friday, April 4, 2008 9:45 AM DWM 1000-2000 SERIES nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 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 Note: • PG13.5 cable glands are supplied as standard • LCD indicators can be retrofitted to all DWM 2000s with aluminium housings 10 www.krohne.com

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TD_DWM1-2000_EN_080401.book Page 11 Friday, April 4, 2008 9:45 AM nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn DWM 1000-2000 SERIES Standard sub-variants without spool piece: Dimensions and Weight in mm and kg Dimensions [mm] a Without LCD indicator 160 With LCD indicator b 80 163 c d 80 e Ø28 f j k 132 90 g G1 95 L 122 Weight [kg] p 86 Ø39 1.9 1 86 80 Ø28 90 164 G1 95 122 86 Ø39 2.4 1 1 the tolerance is +0/-0.2 mm Standard sub-variants without spool piece: Dimensions and Weight in inches and lbs Dimensions [inches] a b c d Without LCD indicator 6.3 3.1 3.1 With LCD indicator 6.4 e g...

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