MULTICAL 803 & ULTRAFLOW 54 Energy Heat and cooling metering for trade and industry

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MULTICAL® 803 & ULTRAFLOW® 54 - Energy Heat and cooling metering for trade and industry

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MULTICAL® 803 for heating and cooling is an all-in-one solution that meets the high requirements for advanced industrial and commercial measurement. An accurate, stable energy calculator with long life and multiple communication and remote reading functions. 

The energy calculator can be read remotely using a wide variety of communication protocols. With the possibility to utilise up to four of Kamstrup’s generation 3 modules, the MULTICAL® 803 provides more flexibility and versatility than ever before. In addition, the meter is IP65-approved and resistant to dust and moisture, reducing the negative impact from harsh environments and thus opening up for an even wider range of possible applications. Save valuable resources with automatic detection of the connected temperature sensors and the meter factor of the connected ULTRAFLOW®, it is only necessary to have one calculator in stock – the Kamstrup MULTICAL® 803.

The robustness and flexibility serve the purpose to minimize the resources spent on revisits due to break-downs, lack of data available or inaccuracies during the entire life cycle of this high-end energy calculator.



  • Precise measuring of heat and cooling up to 30,000 m³/h
  • Remote reading with four communication channels
  • 4 analogue outputs
  • Two plug-in modules simultanously: GSM, M-Bus, RadioRouter, LonWorks pulse inputs for electricity and water meters
  • Data logger with latest 460 days, 36 months and 15 years as well as programmable data logger
  • Complies with EN 1434:2007 Class C and MID M1, E1 and E2

Typical usage

  • Area of Use: Small business, Institutions, Commercial and Industrial
  • Measuring Principal: Ultrasonic
  • Metering Type: Heat, cooling, heat/cooling
  • Type: Combined meter - separable subassemblies
  • Heat (MID) and cooling (TS) approvals: Yes

Key specifications

  • Flow sensor cable: ULTRAFLOW®: ≤ 10 m
  •                               Cable Extender Box: ≤ 30 m
  •                               Pulse Transmitter: ≤ 100 m
  • Temperature sensor cables: 2-wire: ≤ 10 m
  •                                              4-wire: ≤ 100 m
  • Nominal flow: 0.6 - 1000 m3/h
  • Sizes: DN15 - DN300
  • Sizes: 0.6 - 15000 m3/h
  • Pressure loss at nominal flow: Typically < 0.1 bar
  • Battery life: 6-year battery backup
  • Supply: 24 VAC/VDC, 230 VAC


  • Module slots: 4 slots
  • Communication: M-Bus, BACnet, Modbus, LonWorks, analogue output and analogue input
  • Data logger: Programmable logging intervals from 1 minute to 1 year
  • Backlit display: Yes (standard)

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