Contrec 515-SC01 Steam Flow Computer

Part Number: Contrec 515–SC01 Categories: ,

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Contrec 515 Series with SC01 application measures the volume, mass, and energy content of steam by using frequency volume flow input in conjunction with analog temperature and/or pressure input.

A selection of various modes makes it suitable for many steam applications. The instrument is compatible with a wide range of flowmeter frequency outputs. Millivolt signals, reed switches, Namur proximity switches, or pulse trains can be selected via its smart front-panel programming.

According to the IAPWS Industrial Formulation (1997), the instrument calculates the mass flow and energy for the thermodynamic properties of steam. The equations use the pressure and temperature values to determine the specific volume and the specific enthalpy.


The steam energy calculations are based on the IAPWS Industrial Formulation (1997).

Superheated steam regions are:

0°C < t < 800°C P < 100MPa
32°F < t < 1472°F P < 14500psia

800°C < t < 2000°C P < 10MPa
1472°F < t < 3632°F P < 1450psia

Saturated steam regions are:

0°C < t < 374°C (critical temperature)
32°F < t < 705°F

P < 22MPa (critical pressure)
P < 3190psia

Water region is:

0°C < t < t saturation at system pressure
32°C < t < t saturation at system pressure


Mass flow = Volume flow/Specific volume

Energy flow = Mass flow x Specific enthalpy

  • Uses IAPWS-IF97 steam calculation
  • Suitable for Water, Saturated, and Superheated steam applications
  • Allows for non-linear correction
  • Selection of second language and user tags
  • RTC logging with over 1000 entries
  • Infra-red communications port on the 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 – SC01 Datasheet

Instruction Manual: Contrec 515 – SC01 Instruction Manual

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