Forbes Marshall - Trusted Partners in Steam Engineering & Control Instrumentation

Transmitter AMI Powercon

In Steam and Water Cycle conductivity measurement is very basic, but the most important measurement. Specific conductivity (total conductivity), acidic conductivity, conductivity after cation exchanger CACE and degassed cation conductivity (DCASE) are measured at different location in steam and water cycle continuously Conductivity measurements give indication of contamination of water / steam with any kind of salts. These salts can get added to the water / steam from atmosphere or due to leakages in heat exchangers etc. The conductivity of ultra pure water is almost close to zero(say 1..2microsiemens/cm), while with addition of even 1ppm of any salt, the conductivity can shoot up to even more than 100 micro siemens/cm. Thus conductivity is a very good general purpose watch dog which can give a quick indication of plant malfunctioning or possible leakages. Typical points in the steam circuit where conductivity should be monitored are . Drum steam, Drum water, High pressure heaters, Low pressure heaters, Condenser, Plant effluent, D.M. plant, Make-up water to D.M. plant.

AMI Powercon Transmitter is single channel wall mounted 4 wire conductivity transmitter from SWAN Switzerland. This Transmitter is available with Freely programable Analog Output as well as Relay Board and RS-485 Modbus or Profibus Option

Digitally Enabled

  • Measuring and control transmitter in a rugged aluminium enclosure (IP66)
  • Galvanically separated sensor connection
  • Over-voltage protection for inputs and outputs
  • Two current signal outputs (0/4 – 20 mA) for measured signals
  • Input for potential free contact to freeze the measuring value or to interrupt control in automated installations
  • Save money and maintenance down-time because no resin changing or resin rinse down time is required
  • Maximum instrument availability enables precise trend analyses giving you peace-of-mind
  • Continuous monitoring of sample flow and sample temperature provides highest integrity of measured data
  • Robust and reliable measurement of Acid (Cation) conductivity Values

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