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Instantly add the DWM 1000/2000 Electromagnetic Flow Switch & Flow Meter and 50,000+ more product series to your store or catalog  
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DWM 1000/2000 Electromagnetic Flow Switch & Flow Meter

Brand: Krohne
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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.
Features
  • 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 
  • Rugged design, IP66 (NEMA 4/4X) protection 
  • IP 68 version available for immersed applications 
  • Suitable for process temperatures up to 150° C / 300° F and process pressures up to 25 bar / 360 psig 
  • Optional digital display for DWM 2000 meters 
  • Suitable for AC and DC electrical circuits (relays available for the DWM 1000) 
  • Optional spool pieces for pipe diameters DN25 to 50 or 1" to 2" 
  • Optional fitting for tuchenhagen VARIVENT housings 
  • Housing is removable or rotatable under process conditions

Specifications

Brand

Ambient Temperature Range

  • -25° to 60° C (-13° to 140° F)

Applications

  • Air Conditioning (HVac)
  • Cooling Systems
  • Flow Detection
  • Food & Beverage
  • Oil & Gas Applications
  • Petrochemical
  • Pump Protection
  • Water

Approvals & Certifications

  • CE EN 50081-1, EN 50082-2
  • EMC 89/336/EEC
  • LVD 72/73/EEC

BSP Connection

  • Isolation Valve, Long Sensor: G 1-1/2”
  • Standard Fitting: G 1” A

Cable Entry

  • PG13.5

Cable Length

  • Stainless Steel (IP68): 32.81 feet (10 metres)

Cable Material

  • Cable Entry: Nickel-Plated Brass

Consumption

  • Power Consumption: 50 mA for DWM 2000
  • Power Consumption: Max.

Display

  • DWM 1000: Flashing LED Display
  • DWM 2000: 2-Line LCD Display Indicator with 4-Button Keypad
  • DWM 2000: Digital Display

Electrical Connectors

  • Cable Tightening Capacity: 16 AWG (1.5 mm²)

Enclosure Finish

  • Epoxy Paint

Enclosure, Body Material

  • Stainless Steel
  • With (IP68) Sensor: 316L Stainless Steel, 1.4401
  • Without Stainless Steel (IP68): Aluminum

Environmental Protection

  • NEMA 4
  • NEMA 4X
  • Standard Variant, with FT, Long Sensor Option: IP66 According to EN 60529
  • With LCD Indicator: IP55 According to EN 60529
  • With Stainless Steel: IP68 According to EN 60529

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# (ANSI B16.5)
  • 1-1/2” (DN 40) - 300# (ANSI B16.5)
  • 1-1/2” (DN 40) - PN 40

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# (ANSI B16.5)
  • 1” (DN 25) - 300# (ANSI B16.5)
  • 1” (DN 25) - PN 40

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# (ANSI B16.5)
  • 2” (DN 50) - 300# (ANSI B16.5)
  • 2” (DN 50) - PN 40

Function

  • Flow Monitor Velocity in Pipes or Open Channels

Gasket Material

  • Gasket Connection: Klingerit (without Asbestos)
  • Gasket Sensor: FKM
  • Gasket Sensor: FPM
  • Gasket Tuchenhagen Connection: EPDM
  • Gasket, Housing Cover: Per Buna-N

Hysteresis

  • DWM 1000: 8 %, when Flow Velocity Decreases

Length

  • Long Sensor, 20” (500 mm)

Load Resistance

  • Protective Earthing: < 10 ohms

Materials of Construction

  • Electrode: Platinum
  • Isolation Valve: Nickel-Plated Brass
  • Safety Chain, for Long Sensor: Zinc-Plated Steel
  • Spool Piece, Tuchenhagen Connection: 316L Stainless Steel, 1.4401

NPT Connection

  • Long Sensor: 1-1/2” NPT

Operating Pressure

  • Maximum

Output

  • DWM 2000: 4-20 mA, Passive

Power Supply

  • DWM 1000: 48-250 Vac or Vdc
  • DWM 2000: 12 Vdc
  • DWM 2000: 24 Vdc

Process Temperature

  • With Stainless Steel (IP68) Option: -25° to 60° C (-13° to 140° F)
  • Without Stainless Steel (IP68) Option: -25° to 150° C (-13° to 300° F)

Repeatability

  • ± 1 % of the Switching Point (DWM 1000), Measured Value (DWM 2000)

Sensor, Probe Material

  • Sensor Insulation: Ceramic (Zirconium Oxide)

Sensor, Probe Style

  • Sensor: Insertion

Sleeve Material

  • Welding Sleeve for T-mounting: 316L Stainless Steel, 1.4401

Switch Type

  • DIP Switches

System Pressure

  • Process Pressure: psig: 0 to 362.6 (kPa: 0 to 2,500, bar: 0 to 25)

Time Constant

  • DWM 1000: 5 to 10 seconds
  • DWM 2000: 5 seconds

Documentation

Data Sheets

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