CALEC® ST III Standard & Smart

Multifunctional heat and cold calculator for applications in local & district heating, as well as in building technology

Products Application

  • Building technology
  • Calculators
  • Local / district heating

Products Medium

  • Thermal energy

Products Process

  • Data processing / Evaluation

•   Plug-in calculator module
•   Precise energy measurement of all thermal applications in district heating or building technology
•   Enables smart metering: provides accurate meter measurements remotely
•   Bidirectional energy measurement: cooling and heating measurements in the same device
•   Interfaces for building management systems: M-Bus, LON, Modbus, N2Open, BACnet MS/TP, KNX
•   Interfaces for radio readout: WM-Bus (OMS) or LoRaWAN
•   Selection of main power
•   Modularly expandable
•   Optimal system integration
•   Fluide substance data for water-glycol mixtures
•   Integrated power supply for flowmeters
•   Metrological approval according to 2014/32/EU (MID) and PTB K7.2 (cold, hot/cold combined)
•   Easy installation: plug and play

•   Compatible with all standard flow meters which use a pulse output
•   Plug-in computer module with LCD display
•   Power supply 24 VDC / 240 VAC
•   For Pt100, Pt500, Pt1000 temperature sensors, 2- or 4-wire, Max. cable length 100 m (4-wire)
•   Medium temperature: 0°C to 200°C (-40°C to 180°C special heat transfer fluids)
•   Temperature difference 0K to 190K (approval 3K to 190K, 1K to 190K according to prEN1434-4:2014)
•   20-bit resolution, typical +/- 0.005 K
•   Choice of display units
•   Data logger up to 500 records
•   Calculation cycle 1 s
•   24V or 3.6V power supply for flowmeter
•   2 Pulses inputs / Digital output / Analog outputs
•   Communication interfaces: M-Bus, LON, BACnet, ModBus, KNX, N2 Open, Wireless M-Bus (OMS), LoRaWAN
•   Different heat transfer media pre-programmed at the factory (option)
•   Metrological approval according to 2014/32/EU (MID) and PTB K 7.2


Lorem ipsum dolor sit