Contrec 515–HC02 Heat Calculator

SKU: Contrec 515–HC02 Category:

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Contrec 515 Series with HC02 application measures the volume, mass and energy content of the fluid in a heating or cooling systems by using analogue volume flow input in conjunction with an analogue supply and return temperature inputs.

A selection of fluid types and modes makes it suitable for many heating/cooling applications. The Flowmeter input signal can be selected as either 0-5V, 1-5V or 4-20mA. Minimum and maximum points are programmed and non-linear correction points can be used to better reflect the flowmeters behaviour.

The instrument calculates the mass flow and energy according to the IAPWS Industrial Formulation (1997) when the fluid type is water, while internal enthalpy and density tables are used for the selection of other industrial fluids.


  • Suited for heating and/or cooling operation
  • Uses IAPWS-IF97 to determine water properties
  • Selection of common industry fluids using internal tables
  • Facility for user defined Enthalpy and Density table
  • Tailored for volumetric analog flow input such as vortex flowmeters
  • Allows for stacked flow inputs
  • Flow meter can be located in feed or return line
  • Allows for non-linear correction
  • Selection of second language and user tags
  • RTC logging with over 1000 entries
  • Infra-red communications port on front panel
  • Pulse width and scaling of pulse output
  • 4-20mA retransmission
  • Selectable protocols on serial ports including Modbus RTU and printer output
  • Front panel adjustment of 8-24V DC output voltage
  • Backlit display
  • LCD backup

Datasheet: Contrec 515 – HC02 Datasheet
Instruction Manual: Contrec 515 – HC02 Instruction Manual

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