Industrial conductivity meter (low concentration type) HE-480C

Industrial conductivity meter (low concentration type) HE-480C

This is a highly functional model, with high-performance temperature compensation, and is applicable to a wide range of tasks, from managing pure water for use with semiconductors, to managing the quality of boiler water.



Segment: Process And Environment
Division: Process Water
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.
  • High-precision temperature compensation
    The temperature compensation element used is a platinum resistance thermometer (Pt 1000 Ω).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 (2-electrode method)
Cell constant0.01 /cm, 0.1 /cm, or 1.0 /cm
Temperature sensor
Platinum resistance 1000 Ω / 0°C;
Measuring range

Cell constant ( /cm)
Measurement range
2.000 / 20.0020.00 / 200.0200.0 / 2000
Measurement range
0.2000 / 2.0002.000 / 20.0020.00 / 200.0
TDS conversion
2.00 / 20.020.0 / 200200 / 2000
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)
TDS conversion
Within ±0.5% of the full scale

Linearity Within
Conductivity displayWithin ±0.5% of the full scale(in equivalent input)
TDS conversion
Within ±1.5% 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
· Based on the temperature characteristics of extra deionized water (reference temperature: 25 °C)
· Based on the reference temperature and user-defined temperature coefficient
(reference temperature: 5 °C to 95 °C, temperature coefficient ±5% / °C)
· Based on the temperature characteristics of NaCl
· No temperature compensation
Power supplyRated voltage 100 V to 240 V AC, 50 / 60 Hz, 10 VA (max.)
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
conductivity sensor; cell constant: 0.01 /cm, 0.1 /cm, or 1.0 /cm


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