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Steam and heat computer for industrial energy calculation of steam and water

  • ©Endress+Hauser

The steam and heat computer RMS621 calculates steam mass, steam heat quantity, net steam quantity, steam-heat differential, water heat quantity and water-heat differential in up to 3 simultaneous applications. Bi-directional and splitting range measurements are possible. It supports analog, PFM or pulse signals for flow and pressure sensors. Temperature sensors can be connected in 3- or 4-wire connection or via transmitter. A loop power supply is available for each analog or pulse input.


  • Calculation of the following applications:
    Steam mass, steam heat quantity, net steam quantity, steam-heat differential, water heat quantity, water heat differential

  • Simultaneous calculation of up to three applications per device

  • Bi-directional flow applications or energy measurement is possible

  • Split-range flow measurements

  • Flow compensation due to improved differential
    pressure procedure

  • Calculation as per IAPWS-IF 97

  • Meets standards EN 1434-1, 2, 5 and 6 and OIML R75

Field of application

  • Energy management

  • Chemical industry

  • Heating and air conditioning

  • Pharmaceutical industry

  • Food and beverage

  • Plant and panel manufacture

Features and specifications

Documents / Manuals / Software

Accessories / Spare parts


Endress+Hauser Instruments International AG
Middle East Support Centre 7WB-2100, Dubai Airport Free Zone P.O. Box 293828 Dubai United Arab Emirates
Tel.: +971 4 253 51 00
Tel.: +971 4 609 18 11

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