Industrial conductivity meter (high concentration type) HE-480H

Industrial conductivity meter (high concentration type) HE-480H

The HE-480H industrial conductivity meter is a high-concentration conductivity meter using a four-electrode method, with a wide measurement range of 0 - 50 S/m. It is suitable for a wide range of tasks, from managing the concentration of all types of medicinal solutions, to managing the concentration of liquid fertilizers used in hydroponic farming.


Segment: Process And Environment
Division: Process Water
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.
  • Capable of measurements in a wide range, up to 50 S / m (500 mS/cm)
    The HE-480H is applicable to many different tasks, from managing the concentration of all types of solutions used as ingredients, to measuring salt concentrations or managing fertilizers.
  • Includes sea salt - NaCl conversion function
    The salt concentration displayed is converted based on conductivity conversion data.
  • Temperature compensation suited to a range of tasks
    You can select the appropriate temperature compensation for the temperature characteristics of the fluid you are measuring.
  • Self-diagnosis function for sensor faults
    The sensor automatically determines whether it has deteriorated, and displays an error message.
  • Uses lead-free solder
    To reduce the burden on the environment, lead-free solder has been used to mount the components on the printed circuit board.



Measurement methodElectrode type (4-electrode method)
Cell constant1.0 /cm
Measuring rangeMeasurement range
0.000 to 2.0000.00 to 20.00
Measurement range
0.00 to 20.000.0 to 200.0
Seawater salinity
conversion value (%)
0.00 to 4.00
NaCl salinity
conversion value (%)
0.0 to 20.0
0 °C to 100 °C (The displayed decimal place is selectable among 0, 1,and 2.)
Repeatability WithinConductivity displayWithin ±0.5% of the full scale(in equivalent input)
Salinity conversion
Within ±1% of the full scale
Linearity WithinConductivity displayWithin ±0.5% of the full scale(in equivalent input)
Salinity conversion
Within ±1% of the full scale
4 mA to 20 mA DC: input / output isolated type
Maximum load resistance: 900 Ω
Transmission output range: Freely selectable within the measurement range
Contact outputOutputs: 2 points
Alarm contact output (R1 and R2)
Contact type: relay contact, SPDT (1c)
Contact rating: 240 V AC, 3 A and 30 V DC, 3 A (resistance load)
Contact function: selectable from upper / lower limit operation (ON / OFF control), alarm, and maintenance.
Calibration functionConductivity
output hold feature
  • Previous value hold
  • Optional value hold
  • Continuous
Selectable from the above (However, only the previous value hold is available in the maintenance Mode.)
  • Sensor diagnosis
  • Out of the measurement range
  • A/D converter scale over
  • Converter error
  • Temperature characteristics of NaCl
  • Freely selectable reference temperature and temperature coefficient
  • No temperature compensation
Power supplyRated voltage 100 V to 240 V AC, 50/60 Hz, 10 VA (max.)
StructureIndoor-use panel installation type
Panel: IP65 dust and water proof structure
Protective structurePanel: IP65 (IEC60529, JIS C0920)
Conforming standardsCE Marking
FCC Rule
48 (W) mm x 96 (H) mm x 115 (D) mm
Case depth: approx. 105 mm (when panel-mounted)
MassApprox. 400 g
FES series conductivity sensor, cell constant 100 /m (1.0 /cm)
(The measurement range differs depending on the sensor model.)


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