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Photometric Converter - Type 156

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The converter type 156 detects the change in photo-current produced in the sensor. The resulting output signal is proportional to the concentration of substances in the process medium. Two independent setpoints and a mA-output are available for alarm and monitoring. An additional relay output (FAIL-SAGE) is built in for remote sensing of lamp or power failure. The basic calibration is carried out in concentration units (CU). Cu is defined as the negative decadic logarithm of the transmission of light. Or, in other words , an increase of 1 CU corresponds to an attenuation of the light by 90%.

  • Inline real-time process monitoring
  • 3-digit LED display
  • 0/4 – 20 mA-output
  • 2 independent alarm setpoints
  • Reliable cost effective measurements
  • Compact dimensions
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