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PT-DE26 Online Conductivity Sensor – RS485/MODBUS, Temperature Compensated, IP68 Waterproof, 0–200 mS/cm
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PT-DE26 Online Conductivity Sensor – RS485/MODBUS, Temperature Compensated, IP68 Waterproof, 0–200 mS/cm

Measuring Range: 0–20 mS/cm, 0–200 mS/cm | Accuracy: ≤±1% | Response Time: ≤15 s
Measured Variables: Conductivity, Resistivity, TDS, Salinity | Temperature Range: 0–60℃, Accuracy: ≤±0.3℃
Built-in temperature sensor with automatic water temperature compensation
Digital Output: RS-485, MODBUS-RTU; Two-way communication, low power consumption (0.5 W)
Construction: Graphite electrode, ink/epoxy/ABS housing, 316L liquid connection, IP68 waterproof
Installation: Flow-through tank, pipe, or sink mounting; Coaxial design ensures stability and anti-interference
Power Supply: 12–24 VDC; Cable length: 5 m standard, customizable
 
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  • PT-DE26

  • TOP

This electrode is an electrode to measure the conductivity of water, the measuring principle is to place the two electrodes with fixed area and distance in the liquid to be measured, apply a constant voltage at both ends of the storage plate (to avoid polarisation effect, generally sinusoidal voltage), under the action of the electric field, the ions in the solution move in a certain direction, and then measure the current passing between the plates, so as to obtain the conductivity of the liquid to be measured by calculation.


It is suitable for real-time monitoring in various water treatment, aquaculture, environmental monitoring and other industries.


Product features


1.RS-485 transmission interface, MODBUS-RTU communication protocol, two-way communication.

2. Power supply and output isolation design to ensure electrical safety.

3. Built-in protection circuit to enhance anti-interference ability to adapt to the complex environment.

4. Simple and easy-to-use communication protocol, able to output more electrode diagnostic information, more intelligent.

5. Low power consumption design to cope with more occasions of use, internal memory can save calibration and setting information in case of power failure.

6. PC shell, strong corrosion resistance, 3/4 front and rear threads, easy to install.

7. Coaxial structure design, excellent resistance to changes in dry electrode constants, mechanical damage or temperature effects.

8. 316L is chosen as the liquid connection material, which better improves the measurement accuracy.

9. Built-in temperature sensor, with automatic water temperature compensation function.


Project

Detailed parameters

Principle of operation

Two electrode/Quadruple electrode graphite electrode method

Measured Variables

Conductivity, resistivity, TDS, salinity

Measuring range

0~20 mS/cm、0~200 mS/cm

Measurement accuracy

≤±1%

Response time

≤15s

Temperature element

NTC10K

Temperature range

0~60℃

Temperature accuracy

≤±0.3℃

Working Environment

0~60℃、5bar

Power Requirement

12~24VDC, standard with 5m shielded cable, length support customised

Power Requirements

0.5W

Data transmission

RS-485 MODBUS-RTU communication protocol

Waterproof grade

IP68

Main Material

Ink, epoxy resin, ABS, 304 stainless steel

Installation

Flow-through tank mounting, pipe mounting, sink mounting


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