LH-DE21 Digital Conductivity Meter Of 316L Stainless Steel
LH-DE21 Digital Conductivity Intelligent Sensor
This sensor is used for conductivity of water measuring. The measuring principle is to place two electrodes with a fixed area and distance in the liquid to be measured, apply a constant voltage at both ends of the electrode plate (generally a sine wave voltage to avoid polarization effect), under the action of the electric field, ions in solution will move in a certain direction. Measure the current passing between the plates, and calculate to obtain the conductivity of the liquid to be measured.
• Coaxial structure design, excellent resistance to changes in electrode constants, mechanical damage or temperature effects.
• 516L liquid connection material, better improve the measurement accuracy.
• Built in temperature sensor with automatic water temperature compensation function.
• Supports MODBUS / RS485 output.
It is suitable for realtime conductivity monitoring in sewage treatment, aquaculture, environmental monitoring, waterworks and other industries.
| Item | LH-DE20 | LH-DE21 | LH-DE02 | LH-DE05 |
| Measuring range | 2-2000 uS/cm | 2-2000 uS/cm | K=0.1 0.2-200 uS/cm | K=0.1 0.2-200 uS/cm |
| Measuring accuracy | ±2%F.S | |||
| Temperature element | NTC10K | |||
| Working environment | Temperature: 0~60°C; Humidity: W90%RH | |||
| Liquid connection material | 316L stainless steel | |||
| Mounting thread | 5/4nNPTthread | |||
| Cable | Standard 5 meters, OEM available | |||
| Calibration | 1 point or two points calibration | |||
| Power supply | 12~24VDC | |||
| Data output | MODBUS/RS485 | |||
| IP grade | IP68 | |||
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