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  4. Electromagnetic Flowmeter Type PEM-1000
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Electromagnetic Flowmeter Type PEM-1000

Availability: In stock
Specification
Specification for PEM-1000 control unit

Electrical conductivity of the medium:-
  • ≥5μS/cm
Input resistance:-
    • 1010Ω
  • Accuracy:-
    • ±0,5% of reading at 207100% Q10m/s
    • special version: ±0,2% of reading at 207100% Q10m/s
      (for reference conditions)*
    Low flow rejection:-
    • adjustable, any value
    Actual flow:-
    • both directions (l/s,m3/h, m3/s, other)
    Totalizer:-
    • 3 counters: total, positive, negative (m3, other)
    Configuration:-
    • LCD display/buttons or Modbus RTU via RS485
    Empty pipe detection:-
    • cyclic, configurable
    Analog output:-
    • 4 ÷ 20mA/5000
    • active output (passive output – on request)
    Pulse/frequency output:-
    • max. 24V/10mA DC
    • 0,1…2000Hz in frequency mode
    • up to 500Hz in pulse mode
    2-state output OC:-
    • 2, open collector, max. 35V DC for each
    • galvanic insulation, reverse polarity protection
    Communication output:-
    • Modbus RTU/RS 485
    • galvanic insulation
    2-state input:-
    • 5…35V DC/2mA
    • passive input, galvanic insulation, reverse polarity protection
    Power supply:-
    • 90..260V AC/50Hz/15VA
    • 10…36V DC/15W (reverse polarity protection)
    Protection class:-
    • IP66 (IP67 on request)
    Ambient temperature:-
    • -20…60°C
    Weight:-
    • 3,5kg
    Specification for PEM-1000 sensor

    Nominal size:-
    • DN10 ÷ 1000 / ANSI 0,5”…40”
    Max. static pressure:-
    • Standard: 1,6MPa (2,5MPa, 4MPa on request)
    Process connection:-
    • Flange DIN, ANSI
    Ambient temperature:-
    • -20÷60°C
    Liner temperature range:-
    • Rubber: -5÷90°C
    • Neoprene: 0÷80°C
    • Teflon PTFE: -25÷90°C
    • PFA: -10÷90°C
    Connection cable:-
    • Standard: 8m (other on request)
    Electrodes material:-
    • 316L
      (Hastelloy/Tantalum)
    Liner:-
    • Hard rubber DN40÷1000
    • Neoprene DN40÷1000
    • Teflon PTFE DN15÷500
    • PFA DN10
    Casing and flange material:-
    • Standard : carbon steel
    Rustproofing:-
    • Paint
    Excitation coils supply:-
    • From the transmitter
    Excitation of coils isolation class:-
    • E
    Protection class:-
    • Standard: IP67, (IP68 on request)
    Measuring principle:-
    • Electromagnetic
    Accessories:-
    • Grounding Rings
Description
Features

  • Nominal size: DN10...1000 / ANSI 0,5...40“
  • Maximum static pressure 1,6MPa
  • Accuracy: 0,5% or 0,2%
  • Analog outputs: 4...20mA,
  • Communication interface: Modbus RTU / RS 485
  • Pulse output (uni- or bidirectional) or frequency output

Application

Electromagnetic flowmeter for bidirectional measurement of liquids with a minimum conductivity of 5 S/cm:
  • Acid, alkalis
  • Paints
  • Pastes
  • Water, Wastewater, etc.

Measuring principle:

Following Faraday's law of magnetic induction, a voltage is induced in a conductor moving through a magnetic field. In the electromagnetic measuring principle, the flowing medium is the moving conductor. The voltage induced is proportional to the flow velocity and is supplied to the amplifier by means of two measuring electrodes. The flow volume is calculated by means of the pipe cross-sectional area.The DC magnetic field is created through a switched direct current of alternating polarity.

Measuring System:

The measuring system consists of a transmitter and a sensor. Two versions are available:
  • Compact version: Transmitter and sensor form a mechanical unit PEM-1000ALW
  • Remote version: Sensor is mounted separate from the transmitter PEM-1000NW

Advantages

  • Flexible and clever assembling system
  • Easy and fast-moving change from compact to remote version
  • Innovative and high-power transmitter for every application
  • Robust and resistant cover of sensor and transmitter