Industrial electric conductivity meter HE-200C (Four-Wire Analyzer)

HE-200C (Four-Wire Analyzer)



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
  • Inline measurement of pharmaceutical water conductivity according to USP<645> quality guidelines
  • Extensive interfaces (2-channel transmission output, RS-485 compatible, 3-relay output)



Measuring rangeCell constant/cm0.010.11.0
μS/cm0.000 to 2.000
0.00 to 20.00
0.000 to 2.000
0.00 to 20.00
0.0 to 200.0
0 to 2,000*
0.0 to 200.0
0 to 2,000
mS/m0.0000 to 0.2000
0.000 to 2.000
0.0000 to 0.2000
0.000 to 2.000
0.00 to 20.00
0 to 200.0*
0.00 to 20.00
0.0 to 200.0
TDS conversionmg/L0.00 to 2.00
0.0 to 20.0
0.0 to 20.0
0 to 200
0 to 200
0 to 2,000
Electrical conductivity measurement and TDS conversion measurement cannot be selected at same time.
Temperature˚C0 to 100   Resolution: 0.01˚C
* Range only applies to sanitary sensors.
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 outputTwo point 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, USP assessment, transmission output hold operation
  FAIL: Malfunction alarm
 Alarm operation: Output details: Electrical conductivity (or TDS conversion), temperature
Contact inputOne point   Contact format: Open collector non-voltage a contact
 Contact function: Transmission output hold external input
Communication functionRS-485   Two wire system, Input/output insulated type (not insulated for transmission output)
Temperature compensation range0 to 100˚C (but for 0˚C or less, 100˚C or more, extend and perform calculation)
Ambient temperature-20 to 55˚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, 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
WeightApprox. 4.5 kg
Equipment protectedCE marking, FCC rules


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