457D Heat and cold meter, gas flow evaluation unit INMAT 57D


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Installation: communication software SWK45702 - 457S, 457D, 459 (CZ / SK / EN / DE)


  • to measure the flow rate and heat transferred by water vapour
  • to measure flow and heat in condensate
  • for measuring flow and heat or cold in water and in glycol-based heat transfer fluids
  • to measure the flow rate of liquids
  • for measuring the flow of heating and industrial gases including their mixtures
  • single-circuit and double-circuit applications
  • up to three-circuit measurement of steam heat delivery up to 2500 GJ/year
  • as a stand-alone meter for building closed metering units as well as for building large-scale distributed systems
  • Compact design and industrial IP 65 protection allows the evaluation unit to be used in the most demanding conditions.


The INMAT 57D is not designed for operation in hazardous environments.

The instruments are specified products within the meaning of Act No. 22/1997 Coll. as amended and are covered by EU Declaration of Conformity EU-457D00 according to Act No. 90/2016 Coll.

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  • Pražská 470
  • 50901  Nová Paka
  • Czech republic
  • Telephone: +420 493 761 394
  • Fax:
  • E-mail: david.franek@zpanp.cz