Your Source for Process Measurement & Control
Product Groups
COD Analyzer and Control System
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
  • On-line, real time equivalent measurements for TOC, COD, or BOD
  • Configuration for low or high measurement ranges for increased measurement accuracy
  • Low Range Configuration – up to 370 ppm (mg/L)
  • High Range Configuration – up to 1000 ppm (mg/L)
  • Single or dual channel controller versions available
  • Factory tested and calibrated for plug-and-play installation
  • 2 x mA outputs with 3 x set-point relay / alarm outputs
  • Modbus RTU
  • Rugged stainless steel sensor construction
  • Sensor installations options for flow cell, fast loop reservoir, or direct immersion standpipe
  • Advanced sensor wiper design reduces maintenance and calibration periods
 Manuals (contact with email : [email protected])


The Model TCOH with the UV254 Sensor utilizes state of the art UV 254nm optical absorbance technology to measure organics in water.

Many dissolved organic substances have spectral characteristics capable of absorbing UV light at the wavelength of 254 nm. A UV source produces UV light radiation that passes through the optical path. The receiver analyzes the UV pulses at two different wave lengths, a measurement wavelength (254 nm) and a reference wavelength which is not influenced by the presence of organic compounds. This results in accurate, repeatable measurements which can be read as a scalable mA value.

TOC = Total Organic Carbon
COD = Chemical Oxygen Demand
BOD = Biological Oxygen Demand

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