HE-480H

Panel-mount Type Conductivity Meter (Four-Wire Transmission, For Low-concentration)

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 connects conductivity sensor (FES-125F/126F) and measures conductivity and temperature in the sample water. 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. 

Measuring range

Conductivity: 0 - 50 S/cm, 0 - 500 mS/m
Temperature: 0.00 - 100.00 ℃

 

Division: Process Water
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.

 

 

Product nameIndustrial conductivity meter
ModelHE-480H
Measurement
method
Electrode type (4-electrode method)
Cell constant1.0/cm
Measuring range*Measurement range
(S/m)
0.000 to 2.0000.00 to 20.000.00 to 50.00
Measurement range
(mS/cm)
0.00 to 20.000.0 to 200.00.0 to 500.0
Seawater salinity
conversion value (%)
0.00 to 4.00
NaCl salinity
conversion value (%)
0.0 to 20.0
Temperature0℃ to 100℃
(The displayed decimal place is selectable among 0, 1, and 2.)
RepeatabilityConductivity displayWithin ±0.5% of the full scale(in equivalent input)
Salinity conversion displayWithin ±1% of the full scale
LinearityConductivity displayWithin ±0.5% of the full scale(in equivalent input)
Salinity conversion displayWithin ±1% of the full scale
Transmission
output
4 mA to 20 mA DC: input/output isolated type
Maximum load resistance: 900Ω
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: Based on the specified compensation coefficient for the cell constant
(parameter input)
Temperature: Calibrated by comparing with the reference thermometer
Transmission
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.)
 
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 characteristics of NaCl
  • Freely selectable reference temperature and temperature coefficient
 
Measurement rangeReference
temperature
Temperature
coefficient
0.000 S/m to 2.000 S/m
(0.00 mS/cm to 20.00 mS/cm)
5℃ to 95℃±5%/℃
0.00 S/m to 20.00 S/m
(0.0 mS/cm to 200.0 mS/cm)
25℃±3.5%/℃
0.00 S/m to 50.00 S/m
(0.0 mS/cm to 500.0 mS/cm)
No temperature compensation
 
  • No temperature compensation
 
Temperature compensated range0℃ to 100℃
Ambient
temperature
-5℃ to 45℃
Relative humidity20% to 85% (without dew condensation)
Storage
temperature
-25℃ to 65℃
Power supplyRated voltage 100 V to 240 V AC, 50/60 Hz, 10 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
standards
CE MarkingEMC Directive: EN61326-1
Low Voltage Directive: EN61010-1
RoHS Directive: EN50581
FCC RuleFCC Part15
External
dimensions
48 (W) mm × 96 (H) mm × 115 (D) mm
Case depth: approx. 105 mm
MassApprox. 400 g
Compatible sensorsFES series conductivity sensor, cell constant 100/m (1.0/cm)
(The measurement range differs depending on the sensor model.)

* Sensors and measurement ranges

 

Sensor modelFES-125
FES-125F
FES-126
FES-126F
FES-105
FES-105F
FES-116
FES-116F
Measurement
range
0.000 S/m to 2.000 S/m
(0.00 mS/cm to 20.00 mS/cm)
0.00 S/m to 20.00 S/m
(0.0 mS/cm to 200.0 mS/cm)
 
0.00 S/m to 50.00 S/m
(0.0 mS/cm to 500.0 mS/cm)
 
Seawater
salinity
conversion
value
0.00% to 4.00%
NaCl salinity
conversion
value
0.0% to 20.0% 
Temperature0℃ to 50℃
0℃ to 100℃  

✔ Applicable

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