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

Overview

The HE-480C industrial conductivity meter is a low-concentration conductivity meter using a two-electrode method.
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.

Conductivity/Resistivity Meters product literature

Features

  • 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.

Manufactured by HORIBA Advanced Techno

Specifications

Model

HE-480C

Measurement method

Electrode type (2-electrode method)

Cell constant

0.01 /cm, 0.1 /cm, or 1.0 /cm

Temperature sensor
specifications

Platinum resistance 1000 Ω / 0°C;

Measuring range



Cell constant ( /cm)

0.01

0.1

1.0

Measurement range
(µS/cm)

2.000 / 20.00

20.00 / 200.0

200.0 / 2000

Measurement range
(mS/m)

0.2000 / 2.000

2.000 / 20.00

20.00 / 200.0

TDS conversion
(mg/L)

2.00 / 20.0

20.0 / 200

200 / 2000

0°C to 100°C (The displayed decimal place is selectable among 0,  1, and 2.)

Repeatability Within

Conductivity display

Within ±0.5% of the full scale

(in equivalent input)

TDS conversion
display

Within ±0.5% of the full scale


Linearity Within

Conductivity display

Within ±0.5% of the full scale

(in equivalent input)

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: 900 Ω
Transmission output range: Freely selectable within the measurement range

Contact output

Outputs: 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 function

Conductivity
Temperature
TDS

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
· 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 °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 supply

Rated voltage 100 V to 240 V AC, 50 / 60 Hz, 10 VA (max.)

Protective structure

Panel: IP65 (IEC60529, JIS C0920)

Conforming standards

CE Marking
FCC Rule

External
dimensions

48 (W) mm x 96 (H) mm x 115 (D) mm
Case depth: approx. 105 mm (when panel-mounted)

Mass

Approx. 400 g

Compatible
sensors

conductivity sensor; cell constant: 0.01 /cm, 0.1 /cm, or 1.0 /cm

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