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Heat Meter/ Cooling Meter zelsius® C5 CMF

Electronic compact measuring capsule meter for heat and cold energy suitable for connection interfaces according to DIN EN ISO 4064-4 Optional interfaces: M-Bus, wireless M-Bus, LoRaWAN® and 3 inputs/outputs Nominal sizes: qp 0.6 /1.5 /2.5 m³/h

The new zelsius® C5-CMF with measuring capsule flow meter combines compactness with rugged construction. The calculator on the zelsius® C5-CMF is removable as standard with a cable length of approx. 1.2 m and provides a real practical advantage in tight spaces and  transfer stations with covers. A matching wall adapter with mounting hardware is included in the delivery.

The flow sensor on the zelsius® C5-CMF has electronic, non-reactive impeller scanning and has  metrological approval for horizontal and vertical installation (downpipe and riser) according to the current European Measuring Instruments Directive 2014/32 /EU (MID).

The zelsius® C5-CMF is ideally suited for continuous use during regular meter replacement as well as for installation in pre-equipped single-pipe connectors (EAS) in new measuring points thanks to the large selection of directly compatible and commercially available connection interfaces.

System components for remote meter reading, customer service and MID compliant accessories for the
direct installation of temperatures make the zelsius®C5-CMF an optimal solution for practical use.

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Heat meter/ cooling meter zelsius® C5 CMF with coaxial measuring capsule
Heat meter/ cooling meter zelsius® C5 CMF with coaxial measuring capsuleHeat meter/ cooling meter zelsius® C5 CMF with coaxial measuring capsule


Heat Meter/ Cooling Meter zelsius® C5 CMF


  • Directly compatible with many commercially available connection interfaces in accordance with DIN EN ISO 4064-4 (formerly DIN EN 14154)
  • Standard removable calculator, connection cable length to the flow sensor approx. 1.2 m for high flexibility in tight installation situations
  • With optional contemporary data communications interfaces by wire (M-Bus) or wireless M-Bus as well as three programmable pulse inputs and outputs
  • Available as combined heat/cooling energy meter with automatic switching

Product options

Measuring Principle
  • Multi-Jet Meters
  • Electronic
  • Heating circuit up to 90 °C
Housing Material
  • Brass
Metrological Class horizontal (max.)
  • R 25
Communication Technologies
  • Radio via LoRaWAN®
  • Radio via wireless M-Bus
  • optional 3 pulse inputs or outputs
  • Optical interface
  • M-Bus
Connection interface
  • Type A1 (M77 x 1,5)
  • Type IST (G2")
  • Type M60 (M60 x 1,5)
  • Type PCC (M60 x 2)
  • Type TE1 (M62 x 2)
Nominal Flow qp (Heat Meters)
  • qp = 0,6
  • qp = 1,5
  • qp = 2,5
Specified Units on Display
  • Cubic Meters (m³)
  • Degrees Celsius (°C)
  • Gigajoule (GJ)
  • Kilowatt hours (kWh)
  • Megawatt hours (MWh)


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