Industrial pH meter HP-300 (Two-Wire Transmitter)

HP-300 (Two-Wire Transmitter)



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


  • Improved single-touch calibration for greater ease of use
  • Calibration history display
  • New pH electrode lineup



Measuring methodGlass electrode method
Measuring rangepH: 0 to 14 pH   Resolution: 0.01 pH
Temperature: 0 to 100˚C   Resolution: 0.1˚C
RepeatabilitypH: ±0.03 or less   Temperature: ±0.3˚C (for equivalent input)
LinearitypH: ±0.03 or less   Temperature: ±0.3˚C (for equivalent input)
Transmission output

4 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 100˚C
Ambient temperature-20 to 60˚C
Temperature compensation elementPt 1000 (0˚C)
Positive temperature sensitive resistor element: 500 Ω (25˚C), 6.8 kΩ (25˚C), 10 kΩ (25˚C)
Calibration methodAutomatic or manual calibration
Self-diagnosis functionCalibration error, Electrode 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
WeightApprox. 4 kg
Equipment protectedCE marking, FCC rules
Waste Water Treatment and Disposal in Water Waste Management and Remediation Services
Waste Water Treatment and Disposal in Water Waste Management and Remediation Services


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