Industrial electric conductivity meter HE-300C (Two-Wire Transmitter)

HE-300C (Two-Wire Transmitter)



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


  • Suitable for continuous measurement of pure water or boiler water
  • Flexible temperature compensation



Measuring rangeCell constant/cm0.010.11.0
μS/cm0.000 to 2.000
0.00 to 10.00
0.000 to 2.000
0.00 to 20.00
0.0 to 100.0
0.0 to 200.0
0 to 1,000
mS/m0.0000 to 0.2000
0.000 to 1.000
0.0000 to 0.2000
0.000 to 2.000
0.00 to 10.00
0.00 to 20.00
0.0 to 100.0
TDS conversionmg/L0.00 to 2.00
0.0 to 10.0
0.0 to 20.0
0 to 100
0 to 200
0 to 1,0000
Electrical conductivity measurement and TDS conversion measurement cannot be selected at same time.
Temperature˚C0 to 100   Resolution: 0.01˚C
RepeatabilityElectrical conductivity: ±0.5% full-scale or less
TDS conversion: ±1.5% full-scale or less
Temperature: ±0.1˚C (for equivalent input)
LinearityElectrical conductivity: ±0.5% full-scale or less
TDS conversion: ±1.5% 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 100˚C (but for 0˚C or less, 100˚C or more, extend and perform calculation)
Ambient temperature-20 to 60˚C
Temperature compensation elementPt 1000 (0˚C)
Calibration functionElectrical conductivity: Based on input of cell constant correction coefficient (parameter input)
TDS conversion: Conversion based on specified coefficient (0.30 to 1.00)
Temperature: One point calibration compared with reference temperature gauge
Self-diagnosis functionSensor 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 sensorESH series electrical conductivity sensor (cell constant 0.01/cm, 0.1/cm, 1.0/cm)
WeightApprox. 4 kg
Equipment protectedCE marking, FCC rules


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