Industrial electric resistivity meter HE-200R (Four-Wire Analyzer)

HE-200R (Four-Wire Analyzer)



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


  • Accurate measurement of UPW resistivity
  • Well-examined temperature compensation function for UPW
  • Arbitrary setting of the compensation target temperature
  • Extensive interfaces (2-channel transmission output, RS-485 compatible, 3-relay output)



Measuring methodTwo electrode method
Measuring rangeCell constant/cm0.01
MΩ·cm0.000 to 2.0000.00 to 20.00*
kΩ·m0.00 to 20.000.0 to 200.0*
 * With conditions under which temperature compensation is not performed, it is possible to display 0.0 to 100.0 MΩ·cm (0 to 1,000 kΩ·m).
Temperature˚C0 to 100   Resolution: 0.01˚C
RepeatabilityElectrical resistivity: ±0.1% full-scale or less, Temperature: ±0.1˚C (for equivalent input)
LinearityElectrical resistivity: ±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, transmission output hold operation
  FAIL: Malfunction alarm
 Alarm operation: Output details: Electrical resistivity, 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
Ambient temperature-20 to 55˚C
Temperature compensation elementPt 1000 (0˚C)
Calibration functionElectrical resistivity: Based on input of cell constant correction coefficient (parameter input)
Temperature: One point calibration compared with reference temperature gauge
Additional functionUltra-pure water electrical resistivity selection function, clip function
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
Compatible sensorERF series electrical resistivity sensor (cell constant 0.01/cm)
Pair calibration accuracy*Electrical resistivity: ±0.01 MΩ·cm or less (for standard unit / same temperature)
Temperature: ±0.02˚C or less (for standard unit / same temperature)
WeightApprox. 4.5 kg
Equipment protectedCE marking, FCC rules

* The sensor and analyzer are assembled in advance and pair calibration is performed before shipping.


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