Ion Selective SensorsTL-K Series
Potassium Ion Sensor
Ion Selective Sensors
Potassium Ion Sensor
TL-K Series
ISE potassium ion sensor. Range 0–1000 mg/L, IP68, RS485 + 4-20mA output.
Request a QuoteProduct Overview
The TL-K Series uses ion-selective electrode (ISE) technology to measure potassium ion concentration in water. Used in fertilizer production, food processing, and environmental monitoring applications.
Working Principle
The sensor uses a continuous online measurement principle with automatic temperature compensation. The measurement signal is processed by an integrated microprocessor and transmitted via RS485 Modbus RTU for direct integration with PLCs, data loggers, and SCADA systems. The 4–20 mA analog output provides compatibility with legacy control systems.
Wiring & Signal Output
Power supply: 12–24 V DC (standard); 220 V AC with adapter
Primary output: RS485 Modbus RTU (address configurable 1–247)
Analog output: 4–20 mA (proportional to measured value)
Relay output: 2 × SPDT relay for alarm / dosing control
Communication: Modbus RTU function codes 03 / 06 / 16
Cable entry: M16 cable gland, IP68 submersible cable available
Technical Specifications
| Parameter | Value |
|---|---|
| Measurement Principle | Ion-selective electrode (ISE) |
| Measuring Range | 0–1000 mg/L |
| Accuracy | ±10% FS |
| Temperature Range | 0–40°C |
| Pressure | 0–2 Bar |
| Signal Output | RS485 Modbus RTU + 4-20mA |
| Power Supply | 12–24 VDC |
| Connection | 3/4" NPT Thread |
| Protection | IP68 |
| Cable Length | 5m |
| Material | 316 stainless steel |
Key Features
- Ion-selective electrode technology
- Direct immersion measurement
- Continuous online monitoring
- RS485 Modbus RTU for SCADA integration
Typical Applications
Fertilizer productionFood processingEnvironmental monitoringAgricultural water management
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