Industrial dissolved oxygen analyzer (Two-Wire Transmitter) HD-300

HD-300 (Two-Wire Transmitter)



Segment: Process And Environment
Division: Process Water
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.
  • Membrane type polarography method
  • Span calibration by air preceded by auto-zeroing (Electrical auto zeroing function)
  • Self-diagnosis of membrane damage and infiltration into the probe
  • On-site membrane replacement as well as whole sensor replacement



Measuring methodMembrane type polarography method
Measuring rangeDissolved oxygen: 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 output4 to 20 mA DC   Input/output insulated type
Maximum load resistance 600 Ω
Contact inputOne point   Contact format: Non-voltage a contact
 Contact function: Transmission output is held for closed contact input.
Temperature compensation range0 to 50˚C
Ambient temperature-20 to 60˚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, Transmitter malfunction
Power supply24 V DC (operational voltage range: 21 V to 32 V DC)
Power consumption 0.6 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 kg
Equipment protectedCE marking, FCC rules


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