Kamstrup Multical 801 Heat Meter – Ultrasonic Heat Meters MID Class 2

Kamstrup Multical 801 Heat Meter

MID Class 2 Heat Meter

Kamstrup Multical 801 heat meter is an all-purpose energy calculator for heat and cooling together for trade and industry.

The Kamstrup Multical 801 offers high flexibility thanks to it’s programmable functions, plug-in modules and reliability within the industrial sector. The Multical 801 is used together with the market’s widest range of flow sensors, and even at extremely low temperature differences, the measuring accuracy is second to none

The Multical 801 provides four analogue outputs for remote indication of power, flow, T1 and T2, as well as two pulse outputs for accumulated energy and volume.

Kamstrup Multical 801

Ultrasonic Heat Meter

Product Benefits

Kamstrup Multical 801 heat meter offers a high end industrial metering solution thanks to the IP67 rating and resistance to dust and moisture. Offering a solution for both heat and cooling requirements in one simple box the Multical 801 enables low operational costs coupled with high accuracy even when installed in dusty and humid environments.

Multical 801 provides accurate flow metering up to 30,000 m³/h and a built-in valve controller regulating flow and consumption.

The industrial meter is easy to install, maintenance free and based on an open platform.

The heat and cooling meter has an automatic built-in valve controller and is simple to activate by presetting the meter to the desired flow rate.

Kamstrup Multical 801 Heat Meter

MID Approved CLASS 2

The Measuring Instruments Directive (MID) is a European directive (2004/22/EC) that harmonises the requirements of 10 different measuring instrument types, including gas meters and heat meters. MID approved heat meters will have passed specific conformity assessment procedures and have MID markings which allow the instruments to be used in any EU member state.

Heat meters to be used for the Non-Domestic RHI in the UK must also comply with MID Class 2.

Kamstrup Heat Meters - MID Approved


Kamstrup Multical 801 Heat Meter

Product Specifications

Calculator Functions – Energy calculation by the heat meter is carried out on the basis of the formula stated in EN 1434-1:2007. This uses the international temperature scale issued in 1990 (ITS-90) and the pressure definition of 16 bar.

Kamstrup Multical 801 operates with four different energy formulas, E1, E3, E8 and E9. These formulae are calculated in parallel with each integration no matter what the configuration of the energy meter. This enables the Multical 801 to calculate heat and cooling energy in most applications, both closed and open systems.

In addition the calculator can be used to calculate and display flow measurement, power measurement, maximum flow and power, temperature measurement, user, tech and set-up loops.

Communication – The Kamstrup Multical 801 has KMP protocol with CRC16 used for optical communication and for top and base modules.


Mechanical Data

Environmental class – Meets EN 1434 Class A and C

Protection classAmbient
Storage temperatureWeightStorage temperatureConnection cables
IP675…55 °C non condensing, closed location (indoor installation)-20…60 °C (drained flow meter)1.4 kg excluding sensors and flow meter-25…60 °C6 pcs ø3…6 mm and 3 pcs ø4…8 mm

Heat Meter Applications

  • Energy metering independent of supply voltage interruptions
  • Cooling metering in water-based systems
  • Bifunctional heat/cooling metering in separate registers
  • Leak surveillance of heat and cold water installations
  • Power and flow limiter with valve control
  • Data logger
  • Data communication
  • Analog 0/4…20 mA outputs

Meters - Water, Heat & Gas Meters

T&D – Heat, Water & Gas Meters. Heat Meters (Ultrasonic & RHI MID Class Compliant), Water Meters (Mechanical, Rotary Piston, Turbine, Ultrasonic & Woltmann) & Gas Meters (Diaphragm, Turbine & Rotary) from Elster, Kamstrup and Itron.

➡ Did you know? T&D, the Metering Specialists, distribute Elster cold water meters.