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EngyCal RH33
BTU meter

©Endress+Hauser

Custody transfer BTU meter for recording heat quantities of water

The BTU meter RH33 is used in applications with liquid energy carriers.
It calculates the thermal energy of water acc. to EN1434, glycol/water mixtures or other fluids such as thermal oils. Temperature sensor matching using calibrated temperature sensors is done in the device.
Potential for cost savings can be shown by using the software available as an accessory.
The device has a custody transfer approval and allows bi-directional measurement, e.g. charging/discharging of a heat accumulator.

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  • Specs at a glance

    • Input

      1x Puls/Analog
      2x RTD/Analog
      Loop power supply 24V DC (+/-16%)

    • Output

      1x 4...20mA
      2x digital (Open Collector)

    • Display

      160 x 80 Dot-Matrix LCD with white backlit
      colour change in case of alarm event
      active display area 70 x 34 mm

    • Calculations

      heat quantity and heat quantity difference

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  • Optional add-ons
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Additional components

  • Benefits

    • Transparent energy consumption helps you save on energy costs

    • Calibrated, electronically paired temperature sensors ensure the highest accuracy and enable replacement of individual temperature sensors even for certified devices in the field (without...

  • Field of application

    Recording and billing the quantities of heat and cold in:

    • Heating circuits

    • Cooling circuits

    • Combined heating and cooling circuits

    Typical application areas in industry, long-distance heat networks and building automation.

Features and specifications

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Details

  • Measuring principle

    Energy manager

  • Measuring principle

    Energy manager

  • Function

    Monitoring and billing of energy in heating and cooling applications as well as combined heating-and cooling circles.

    Typical applications can be found in industries, district heating and building automation.

  • Calculations

    heat quantity and heat quantity difference

  • Number of applications

    1

  • Data storage

    yes

  • Calculation standards

    IAPWS-97

  • Communication

    web server

    USB

    Ethernet

    Modbus RTU/TCP Slave

    M-Bus

  • Power supply

    Not defined

  • Loop power supply

    Low voltage power supply:

    100 bis 230 V AC (-15% / +10%)

    Small voltage power supply:

    24 V DC (-50% / +75%)

    24 V AC (±50%)

  • Protection class

    IP65

  • Input

    1x Puls/Analog

    2x RTD/Analog

    Loop power supply 24V DC (+/-16%)

  • Output

    1x 4...20mA

    2x digital (Open Collector)

  • Dimensions (WxHxD)

    144 x 144 x 103.1 mm (5.67" x 5.67" x 4.06")

  • Operation

    3 button on site or via FieldCare

    read out of historical / logged data via Field Data Manager Software (SQL database and visualization interface)

    selectable language

  • Display

    160 x 80 Dot-Matrix LCD with white backlit

    colour change in case of alarm event

    active display area 70 x 34 mm

  • Software functions

    Calculated Values:

    Energy, volume, density, enthalpy & enthalpy difference, DP-Flow-Compensation, mass, temperature difference

    Counters:

    Volume, mass, energy, counter in case of failure

    Optional:

    tariff 1, tariff 2 or seperated heating energy, cooling energy, bilance energy

  • Certificates

    CE

    CSA GP

    MID 004 (custody transfer) according EN1434 (water/other liquids)

    OIML R75

  • Measuring principle

    Energy manager

  • Function

    Monitoring and billing of energy in heating and cooling applications as well as combined heating-and cooling circles.

    Typical applications can be found in industries, district heating and building automation.

  • Certification

    CE, UL listed, CSA GP, MID 004 (custody transfer) according EN1434 (water/other liquids) and OIML R75

  • Input

    1x Puls/Analog,

    2x RTD/Analog,

    Loop power supply 24V DC (+/-16%)

  • Output

    1x 4...20mA,

    2x digital (Open Collector)

  • Relay output

    2x

  • Auxiliary power supply

    Low voltage power supply: 100 bis 230 V AC (-15% / +10%); Small voltage power supply: 24 V DC (-50% / +75%), 24 V AC (±50%)

  • Dimensions (wxhxd)

    144 x 144 x 103.1 mm

    (5.67" x 5.67" x 4.06")

  • Software

    Calculated Values:

    Energy, volume, density, enthalpy & enthalpy difference,

    DP-Flow-Compensation,

    mass,

    temperature difference;

    Counters: volume, mass, energy, counter in case of failure

    Optional: tariff 1, tariff 2 or seperated heating energy, cooling energy, bilance energy

  • Operation

    3 button on site or via FieldCare; read out of historical / logged data via Field Data Manager Software (SQL database and visualization interface), selectable language

  • Display

    160 x 80 Dot-Matrix LCD with white backlit, colour change in case of alarm event, active display area 70 x 34 mm

  • Others

    electronic temperature sensor matching via CvD coefficients, logbook measured values, custody transfer logbook, event logbook, limit monitoring

  • Calculations

    IAPWS-IF97

Documents / Manuals / Software

Accessories / Spare parts

Nr
Order code
Specification
  • 5
    • Order code 51009210

      Terminal strip 3 pole FMC1,5/3-ST-3,5

      for digital I/O and RS485

  • 9
  • 4
    • Nr 4 Order code XPR0001-SP

      Small parts set: hinge pin, pressure compensation element, USB-cover, seal panel

  • 3
    • Nr 3 Order code XPR0001-CP

      Cover electronic internal for RH33 + RS33 incl. screws (for Mainboard + CPU card)

  • 2
    • Nr 2 Order code XPR0001-UT

      Housing lower for Rx33 incl. counter plate (please order name plate separately with DIENST-T)

  • 1
  • 8
  • 7
  • 6
    • Order code MS20-

      Field Data Manager Software MS20

      Visualization software and database for visualization of historical data like measured values, calibration or configuration. Manipulation protected SQL database, graphical visualization, tables for measured values, alarms or events, online help, user administration, Automatic read out of device data. Automatic data export in various formats or in secured format for backup or reduction of database. Note: The version FDM essential only supports RSG30, RSG35, RSG40 as well as RSG45 and has a restricted functionality.

    • Order code TR10-

      RTD Thermometer TR10

      to screw in. Thermowell acc. DIN 43772/2G+3G. Replaceable insert, MgO. max.measuring range: -200...+600oC. (depending on configuration).

    • Order code TPR100-

      Insert TPR100

      Mineral insulated cable (MgO). Replaceable insert acc.EN60751. max. measuring range: -200...600oC (depending on configuration).

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