2-channel Sanitary Conductivity Meter HE-960CW

2-channel Sanitary Conductivity Meter HE-960CW

Sanitary Conductivity Meter (Low Concentration type)


The HE-960CW is ideal for the conductivity control of the purified water, pasteurized water, and water for injection that are used in the production of pharmaceuticals.
And we have developed a lineup of electric conductivity sensors that can be used in conjunction, from the conventional insertion type to the flow-through type with improved cleaning and sanitary properties.



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


  • Diverse measurement range
    The HE-960CW, which is used in conjunction with the FS Series conductivity sensor, measures the water conductivity ranging from purified to 2000 µS/cm.
  • 2-channel simultaneous measurement
    Monitoring of the desalinity rate and diagnosis of film deterioration are also possible by simultaneously measuring and comparing two locations pre- and post-processing, such as with RO film, etc.
  • 2-channel simultaneous outputs
    The HE-960CW includes 4 transmission output circuits built-in.
  • Four contact alarms
  • Built-in Communications Function (RS-485)
    The HE-960CW is equipped with an RS-485 interface to allow you to check measurements and check/change the set points from a remote location.
  • USP‹645› water quality determination function
    This product features a function that automatically determines a conductivity standard for pharmaceutical water such as an injection solvent. Temperature compensation can be achieved with various methods, or no compensation can be selected.



Measurement method2-electrode method
Sensor input2-channel (for concurrent measurement with sensors isolated each other)
Temperature sensor specificationsPlatinum resistance 1000 Ω/0 °C coefficient 3850 ppm/°C standard
Measuring rangeCell constant( /cm)
ConductivityµS/cm2.000 / 20.0020.00 / 200.0200.0 / 2000
 mS/m0.2000 / 2.0002.000 / 20.0020.00 / 200.0
TDS conversionmg/L2.000 / 20.0020.00 / 200.0200.0 / 2000
Temperature: 0 to 100°C (Select your desired decimal point from 0, 1, and 2 digits)
Desalination rate: 0.0 to 100%
Conductivity difference: Depends on measurement range of sensor 2 (CH2)
RepeatabilityConductivity display : Within ±0.5% of the full scale
TDSdisplay : Within ±1.5% of the full scale
(in equivalent input)
LinearityConductivity display : Within ±0.5% of the full scale
TDS display : Within ± 1.5% of the full scale
Transmission outputNumber of outputs : 4
4 mA to 20 mA DC / 0 mA to 20 mA DC : input/output isolated type
Maximum load resistance : 900 Ω
Transmission output range : Freely selectable within the measurement range
However, repeatability and linearity will remain accurate to the separately set measuring range.
(Negative terminals of each transmission output channel are connected inside and thus have the same electric potential.)
Contact output

Number of output : 4 points
Alarm contact output (R1, R2, R3, R4)

  • Contact type : relay contact, R1, R2, R3 : SPST
    Contact type : relay contact, R4 : SPDT
  • Contact rating : 240 V AC 3 A and 30 V DC, 3 A (resistance load)
  • Contact function : selectable from upper / lower limit action (ON / OFF control), delay, and hysteresis
  • Output contents : selectable from the selected measurement, USP assessment, anomaly alarm, and maintenance.

(However, R1 and R2, R3 and R4 share the COMMON contacts respectively.)

Communication outputRS-485 input / output
Calibration functionConductivity : Based on the specified compensation coefficient for the cell constant (parameter input)
Temperature : Calibrated by comparing with the reference thermometer
TDS: Conversion using a user-defined coefficient value (0.30 to 1.00)
Transmission output hold featureSelectable from the Previous value hold and the Optional value hold.
(However, only the previous value hold is available in the maintenance mode.)
Self-diagnosis function·Sensor diagnosis (Short-circuit and disconnection of the temperature sensor)
·Out of the measurement range ·A/D converter scale over ·Converter error
Temperature compensation·Temperature characteristic of NaCl (reference temperature : 5 to 95°C)
·Arbitrary temperature coefficient entry
(reference temperature : 5 to 95 °C, temperature coefficient : ±5% / °C)
(In the deionized water area, however, the temperature compensation for deionized Water is automatically performed in both NaCl and arbitrary temperature coefficient Compensation settings.)
Temperature compensation range0 to 100°C
Ambient environmentTemperature: -5 to 55°C, Relative humidity: 20% to 85% (without dew condensation)
Power supply100 V to 240 V AC ±10%, 50/60 Hz, 25 VA (max)
Protective structurePanel: IP65, Rear case: IP20, Terminal: IP00 (Indoor-use panel installation type)
MassApprox. 550 g
Conforming standardsCE Marking, FCC Part15
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