HE-480C

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

HE-480C connects conductivity sensor (ESH /FS Series) and measures conductivity and temperature in the sample water. 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.

Measuring range

Conductivity: 0 - 2000 μS/cm, 0 - 200.0 mS/m
TDS: 0 - 2000 mg/L

Division: Process Water
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.
Product nameIndustrial conductivity meter
ModelHE-480C
Measurement
method
Electrode type (2-electrode method)
Cell constant0.01/cm, 0.1/cm, or 1.0/cm
Temperature
sensor
specifications
Platinum resistance 1000 Ω/0℃
Measuring rangeCell constant (/cm)0.01
(ESD/ESL/ESH-001)
0.1
(ESD/ESL/ESH-01)
1.0
(ESD/ESL/ESH-1)
Measurement range
(μS/cm)
2.000/20.0020.00/200.0200.0/2000
Measurement range
(mS/m)
0.2000/2.0002.000/20.0020.00/200.0
TDS conversion
(mg/L)
2.00/20.020.0/200200/2000
Temperature 0℃ to 100℃
Repeatability (in
equivalent input)
Conductivity displayWithin ±0.5% of the full scale
TDS conversion
display
Within ±1.5% of the full scale
Linearity (in
equivalent input)
Conductivity displayWithin ±0.5% of the full scale
TDS conversion
display
Within ±1.5% 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
TDS: Conversion using a user-defined coefficient value (0.30 to 1.00)
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
 
  •  Based on the temperature characteristics of extra deionized water (reference temperature: 25℃)
  •  Based on the temperature characteristics of NaCl
  •  Based on the reference temperature and user-defined temperature coefficient
    (reference temperature: 5℃ to 95℃, temperature coefficient ±5%/℃)
  •  No temperature compensation
 
Temperature-
compensated range
0℃ 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 (when panel-mounted)
MassApprox. 400 g
Compatible sensorsESD, ESL, ESH and FS series conductivity sensor; cell constant: 0.01/cm, 0.1/cm, or 1.0/cm

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