Ion Selective SensorsTL-HARD-406
Water Hardness Sensor
Ion Selective Sensors
Water Hardness Sensor
TL-HARD-406
PVC membrane ISE hardness sensor. Range 0–1000 mg/L, IP68, RS485 + 4-20mA output.
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The TL-HARD-406 uses PVC membrane ion-selective electrode technology to measure total water hardness (calcium + magnesium). Suitable for boiler water monitoring, cooling tower control, and water softening system management.
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement Principle | PVC membrane ISE |
| Measuring Range | 0–1000.0 mg/L |
| Accuracy | ±10% FS, ±0.3°C |
| Resolution | 0.1 mg/L |
| Working Conditions | 0–40°C, 0–2 Bar |
| Power Supply | 12–24 VDC |
| Connection | 3/4" NPT Thread |
| Signal Output | RS485 Modbus RTU + 4-20mA |
| Calibration | 2-point calibration |
| Protection | IP68 |
| Cable Length | 5m |
| Material | 316 stainless steel |
Key Features
- PVC membrane ISE for total hardness
- Measures calcium + magnesium combined
- Suitable for boiler and cooling water systems
- Continuous online monitoring
Typical Applications
Boiler water monitoringCooling tower controlWater softening systemsIndustrial process water
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