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Combined heat and cooling meter for large measuring points

CF-51 und CF-55

CF 51 CF 55 Waermezaehler Grossmessstellen E Pd20531 1

Product categories

Heat / Cooling

Combined heat and cooling meter for large measuring points

Heat / Cooling

Mechanical

Ultrasonic

Magnetic-Inductive

Smart Building

Your benefits

  • Big display:
    - Easy to read
  • Universal applicable:
    - Wall-mounted model
    - Different power supply possibilities
  • Option cards for diverse functionalities:
    - Economical base device
    - Additional functionalities feasible

Applications

  • Metering of heat and/or cooling consumption in building management
  • Energy measurement for local or remote reading
  • Application for large measuring points

Options

  • Special version for combined heat/cold measurements (special programming)
  • Option cards for:
    - M-Bus / water meter inputs
    - M-Bus / 2 pulse outputs
    - Heat energy: Output Heat energy + volume
    - Heat and cooling energy: Output Heat and cooling energy
    - M-Bus Power / 2 water meter inputs
    - Double M-Bus (only CF-55)
    - LonWorks, FTT-10A / 2 water meter inputs (separate supply 24 V AC/DC necessary)
    - Modbus RTU (RS485) / 2 water meters inputs (Power supply module 230 V AC necessary)
  • Optional external EquaScan - wireless pulse Module pMIU
    Documentation: CF-51 Calculator - EPe20526 Documentation: CF-55 Calculator - EPe20527
CF 51 CF 55 Waermezaehler Grossmessstellen E Pd20531 1

Properties

  • Electronic calculator and LCD-resolution 7 digits
  • Temperature measuring range 0 - 180 °C
  • Temperature sensor Pt 100
    - CF-51: 2-wires
    - CF-55: 2- or 4-wires
  • Non-volatile memory EEPROM and 24 month register
  • Supply via 12-year battery, mains or M-Bus (pay attention to versions)
  • Maximum values with time stamp
  • Can be combined with the following volume measuring meters:
    - Mechanical impeller meters
    - Ultrasonic meters with Reed-pulser
    - MID
  • Standard EN 1434
  • Conformity according European Measuring Instruments Directive (MID)

Product information

Technical Data MTW / MTW-VS / MWT-VF / MTH
E Pe20531 03
Dimension Diagram CF51 / CF-55 / MTW(-V) / MTH(-V)
E Pe20531 02
Technical Data WPD FS
Series WPD FS
Nominal diameter DN mm 50 50 65 65 80 80 100 100 125 150 150
Operating pressure PN bar - - - - - - - - - - -
Operating pressure (flanged) PN bar 16 16 16 16 16 16 16 16 16 16 16
Connecting thread on meter G…B Zoll - - - - - - - - - - -
Connecting thread on coupling R… Zoll - - - - - - - - - - -
Nominal flow rate qp m3/h 15 15 25 25 40 40 60 60 100 150 150
Maximum flow rate qs m3/h 30 30 50 50 80 80 120 120 200 300 300
Minimum flow rate ±5% qi m3/h 1,5 1,5 2,5 2,5 4 4 6 6 10 15 15
Pulse value of volume measuring meter l/Imp. 25 25 25 25 25 25 25 25 100 250 250
Kvs-value m3/h 110 110 110 110 340 340 380 380 520 810 810
Temperature range °C 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130 10... 130
Installation position ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓ ←→ ↑↓
Standard measuring range qi/qp 1:10 1:10 1:10 1:10 1:10 1:10 1:10 1:10 1:10 1:10 1:10
Dimensions WPD FS
Length without couplings A mm - - - - - - - - - - -
Length with couplings mm - - - - - - - - - - -
Total height B mm - - - - - - - - - - -
Meter height from pipe centre line C mm 120 120 120 120 150 150 150 150 160 177 177
Meter depth D mm - - - - - - - - - - -
Meter depth from pipe centre line E mm - - - - - - - - - - -
Meter width F mm - - - - - - - - - - -
Length with flanges A mm 200 270 200 300 225 300 250 360 250 300 500
Height with flanges H mm 193 193 205 205 245 245 255 255 278 312 312
Flange external dimension 3) D mm 165 165 185 185 200 200 220 220 250 285 285
Hole circle diameter messer 3) L mm 125 125 145 145 160 160 180 180 210 240 240
Number of screws 3) Stk. 4 4 4 4 8 8 8 8 8 8 8

3) DIN EN 1092-2

Dimension Diagram WPD FS
CF 51 CF 55 Waermezaehler Grossmessstellen E Pd20531 3
Technical Data AXONIC / OPTIFLUX 4300
E Pe20531 04
Dimension Diagram AXONIC / OPTIFLUX 4300
E Pe20531 05
Calculator executions

Wall-mounted model (split version)

CF-51
■ ... WBT Battery (12 years)
■ ... WNZ Mains supply (230 V AC)
■ ... WFS Supply via M-Bus

CF-55
■ ... WBT Battery (12 years)
■ ... WNZ Mains supply (230 V AC)
■ ... WFS Supply via M-Bus

Enquire

Last updated: 12.03.2025
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