HORIBA HE-300R Field-installation type electric resistivity meter (resistivity meter)

Model

HE-300R

Sensors in
combination

2-electrode method resistivity sensor (ERF-001 Series) of cell constant 0.01/cm

Measuring range

Resistivity

MΩ•cm

0.000 to 2.000

0.00 to 20.00 (*¹)

kΩ•cm

0.00 to 20.00

0.0 to 200.0 (*¹)

Temperature

℃

0℃ to 100℃ (Display range: −10℃ to 110℃)

Display
resolution

Resistivity

As shown in the measuring table.

Temperature

0.01℃

Performance

Resistivity

Repeatability

Within ±0.1% of the full scale (response for equivalent input)

Linearity

Within ±0.5% of the full scale (response for equivalent input)

Temperature

Repeatability

±0.1℃ (response for equivalent input)

Linearity

±0.5℃ (response for equivalent input)

Transmission
output

Output type

4 mA to 20 mA DC: input/output isolated type

Load resistance

Maximum: 600Ω  Case of 24 V DC power supply

Linearity

±0.08 mA (output only)

Repeatability

±0.02 mA (output only)

Output range

Resistivity: Free setting within a measuring range.

Occasional out for error

Hold or burnout to either 3.8 mA or 21 mA

Transmission hold

In the maintenance mode, transmission signal is held at the latest value or preset value.
In the calibration mode, transmission signal can be alive or held.

Contact input

Number of input

1

Contact type

No-voltage "a" contact for open collector

Conditions

ON resistance: 40 Ω max.
Open voltage: 1.2 V DC
Short-circuit current: 21 mA max.

Contact function

External input for transmission holding.

Temperature
compensation

Applicable temperature
element

Platinum resistor: 1 kΩ (0℃)

Compensation method

• Temperature characteristic of NaCl (reference temperature: 5℃ to 95℃)

• Arbitrary temperature coefficient input (reference temperature: 5℃ to 95℃; temperature coefficient: +/−3%/℃)

• No temperature compensation
  One of the three ways of compensation is selectable.
  (In the de-ionized water area, the temperature compensation for pure water is automatically performed in both NaCl and arbitrary temperature coefficient compensation settings.)

Temperature compensation
range

0℃ to 100℃ (However, the compensation calculation is extended lower than 0℃ or higher than 100℃.)

Calibration

Resistivity

Based on parameter input of coefficient for the sensor cell constant.

Temperature

Comparison to the accurate thermometer
Both deviation and coefficient of RTD are taken into account for calibration.

Other function

UPW standard resistivity input

Select one from the next.
182.3 kΩ•m (standard), 181.8 kΩ•m, 182.4 kΩ•m,
18.23 MΩ•cm (standard), 18.18 MΩ•cm, or 18.24 MΩ•cm

Clipping function

If the measured value exceeds the user setting value for clipping, the measured data will be held at the clipping value.