Industrial dissolved oxygen analyzer HD-200 (Four-Wire Analyzer)

HD-200 (Four-Wire Analyzer)



Segment: Process And Environment
Division: Process Water
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.


  • Self-diagnosis of membrane damage and infiltration into the probe
  • On-site membrane replacement as well as whole sensor replacement
  • Span calibration by air preceded by auto-zeroing (Electrical auto zeroing function)
  • Extensive interfaces (2-channel transmission output, RS-485 compatible, 4-relay output)



Measuring methodMembrane type polarography method
Measuring rangeDissolved oxygen concentration: 0 to 20 mg/L   Resolution: 0.01 mg/L
Saturation ratio: 0 to 200%   Resolution: 1%
Temperature: 0 to 50˚C   Resolution: 0.1˚C
RepeatabilityDissolved oxygen concentration: ±0.5% full-scale or less, Temperature: ±0.5˚C (for equivalent input)
LinearityDissolved oxygen concentration: ±0.5% full-scale or less, Temperature: ±0.5˚C (for equivalent input)
Transmission outputTwo points 4 to 20 mA DC   Input/output insulated type   Maximum load resistance 900 Ω
Contact outputThree points Non-voltage contact output Relay contact, SPDT(1c)
 Contact function R1, R2: Selectable from upper limit alarm, lower limit alarm, ON/OFF control, transmission output hold operation, cleaning output
  FAIL: Malfunction alarm
 Control operation Control range: 0.02 to 1.00 mg/L (±0.01 to ±0.50 mg/L)
Contact inputOne point   Contact format: Open collector non-voltage a contact
 Contact function: Cleaning operation external input
Communication functionRS-485   Two wire system, Input/output insulated type (not insulated for transmission output)
Temperature compensation range0 to 50˚C
Ambient temperature-20 to 55˚C
Temperature measurement elementPt 1000 (0˚C) (Built into DO-1100 probe)
Calibration methodAtmospheric calibration or saturated liquid calibration
Self-diagnosis functionCalibration error, Sensor diagnosis error, Analyzer malfunction
Power supply90 to 264 V AC 50/60 Hz
Power consumption 15 W or less
ConstructionOutdoor installation type: IP65 protection level
Mounting method: 50A pole or wall mounted
Case: Aluminum alloy
Mount fitting/hood: SUS304
Compatible sensorSensor: 5505, 5510 Probe: DO-1100
WeightApprox. 4.5 kg
Equipment protectedCE marking, FCC rules


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