Sanitary Conductivity Meter (Wide-range type) HE-960HI

HE-960HI Sanitary Conductivity Meter (Wide-range type)

The HE-960HI is a wide-range type sanitary electric conductivity meter that can measure over a wide range from manufacturing water up to 500 mS/cm, and enables advanced concentration management through abundant outputs. Cleaning-in-Place (CIP) terminal management and a reduction in cleaning solutions is also achieved through accurate surface detection.
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.


  • Simultaneous 4-channel output
    Advanced concentration management is possible through simultaneous 3-channel output of low, middle, and high concentrations, etc.
  • Five contact alarms
  • Input signal can apply for analog output range selection
  • Including nitric acid, phosphoric acid, sodium hydroxide, and 2 user-specified types, the concentration of a total of 5 types of chemical solutions can be output
  • Built-in Communications Function (RS-485)
    HE-960HI is equipped with an RS-485 interface to allow you to check measurements and check / change the set points from a remote location.




Measurement methodElectrode type (4-electrode method)
Cell constant0.1 /cm
Temperature sensor specificationsResistance thermometer bulb 1,000 Ω / 0 °C
Measuring rangeConductivity0 mS/cm to 200 mS/cm (measuring range of conductivity before temperature compensation: 0 mS/cm to 500 mS/cm)
Temperature0.0 °C to 100.0 °C
Concentration conversionHNO30% to 5.00%Preprogrammed in the instrument
NaOH0% to 5.00%
H3PO40% to 5.00%
Option 10% to 100.00%Conversion formula is defined by user (temperature compensation and concentration conversion)
Option 20% to 100.00%
Repeatability0.000 mS/cm to 2.000 mS/cmWithin ±0.5% full scaleUsing equivalent input for conductivity
0.00 mS/cm to 20.00 mS/cmWithin ±0.5% full scale
0.0 mS/cm to 200.0 mS/cmWithin ±0.5% full scale
0 mS/cm to 500 mS/cmWithin ±1.0% full scale
0.0 °C to 100.0 °CWithin ±0.2 °C
Linearity0.00 mS/cm to 20.00 mS/cmWithin ±0.5% full scaleUsing equivalent input for conductivity
0.0 mS/cm to 200.0 mS/cmWithin ±1.0% full scale
0 mS/cm to 500 mS/cmWithin ±2.0% full scale
0.0 °C to 100.0 °CWithin ±0.5 °C
Display and output rangeConductivity0 mS/cm to 2000 mS/cm
Temperature-30 °C to 160 °C
Concentration0% to 5%: NaOH, HNO3, H3PO4
0% to 100%: Concentration of the component in the optional conversion formula set by user
Transmission outputNumber of output points: 4
4 mA to 20 mA DC: input / output isolated type
Maximum load resistance: 900 Ω
Transmission output range: Freely selectable within the measurement range
(Negative terminals of each transmission output channel are connected inside and thus have the same electric potential.)
Contact outputNumber of relay : 5
  • ALARM contact R1, R2 ,R3 and R4
    • Contact type: relay contact, SPST (1a)
    • Contact rating: 240 VAC, 1 A (resistance load)
    • Contact function: Upper or lower ON / OFF alarm on each measurement items, conductivity, concentration, temperature, including delay time and hysteresis.
    • Contact action: Closed when status is in the event. Opened when status is normal or power is down.
  • Self diagnosis contact RF
    • Contact type: relay contact, SPDT (1c)
    • Contact rating: 240 VAC, 1 A (resistance load)
    • Contact function: Selectable from error,trouble warning and maintenance
    • Contact action: Closed when status is normal. Opened when status is normal or power is down
Contact input

Number of inputs : 2

    • Contact status: open collector , No-voltage contact
    • Contact function:Two input signals can apply for analog output ranges, or hold command and switching for one analog range
Calibration functionConductivity: Based on the specified compensation coefficient for the cell constant (parameter input)
Temperature: Calibrated by comparing with the reference thermometer
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
  • Converter error
Temperature compensation 
  • Temperature characteristics of NaCl (reference temperature: 25 °C)
  • Arbitrary temperature coefficient entry (reference temperature: 25 °C, temperature coefficient: ±5% / °C)
  • No temperature compensation is performed.
Temperature-compensated range0 °C to 100 °C (a temperature less than 0 °C and more than 100 °C is calculated as an extension of the range)
Ambient temperature-5 °C to 55 °C
Relative humidity20% to 85% (without dew condensation)
Power supplyRated voltage 100 V to 240 V AC, 50/60 Hz, 15 VA (max.)
StructureIndoor-use panel installation type
Panel case: ABS, Terminal: PBT
Panel: IP65 dust and water proof structure
Protective structurePanel: IP65 (IEC60529, JIS C0920)
Rear case: IP20, Terminal:IP00
Class II device (IEC61010-1)
Pollution level 2 (IEC61010-1)
Conforming standardsCE MarkingEMC Directive (89 / 336 / EEC)
EN61326: 1997 / A3: 2003
Low Voltage Directive (73 / 23 / EEC)
EN61010-1: 2001
FCC RuleFCC Part15
External dimensions96 (W) mm x 96 (H) mm x 115 (D) mm
Case depth: approx. 105 mm (when panel-mounted)
MassApprox. 550 g
Compatible sensorsSubmersible FES-210L series sanitary four-electrode conductivity sensor
Flow-through FES-310L series sanitary four-electrode conductivity sensor
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