Conductivity sensor
K5300i-Two-Pole Graphite Digital Electrode
The K5300i Conductivity Electrode integrates the transmitter into the electrode, redefining communication among the electrode, end-users, and process control system operators. This integration replaces traditional transmitters with a built-in microprocessor, enabling direct RS485 signal output. Its graphite front electrode ensures resistance to high temperature, corrosion, and strong stability with a wide measurement range — making it ideal for demanding industrial applications.
| Measurement Range | 0 ~ 70 mS/cm |
|---|---|
| Measurement Accuracy | ±2% |
| Temperature Range | -20 ~ 60 °C |
| Pressure Resistance Range | 0 ~ 6 Bar |
| Temperature Compensation Type | NTC22K |
| Data Compensation | Default 25 °C temperature compensation, 2%/°C |
| Response Time | < 10 s |
| Sensor Lifespan | 2–3 years |
| Mounting Thread | G3/4 |
| Housing Material | POM |
| Length | 189 mm |
| Cable Connection | Integrated Direct Connection Type |
| Power Supply Mode | 6–30 VDC |
| Communication Mode | MODBUS RTU Protocol (RS485) |
Features Overview
- Measurement range far exceeds stainless steel two-pole electrodes.
- One electrode covers all requirements — no need to select different constants.
- Strong acid and alkali corrosion resistance.
- Graphite electrode for high durability and long lifespan.
- IP68 waterproof rating for harsh environments.
- High measurement accuracy with fast response time.
- G3/4 thread allows direct installation into the process.
Applications
- Surface Water
- Wastewater Treatment
- Seawater
- Agricultural Aquaculture
- Industrial Processes
Expansion Capability
- Low-power consumption version can be customized.
- Mounting threads available in pipe type or submersible type.
- Cable length can be extended up to 100 meters.
K5500-Two-Electrode Conductivity Electrode
The K5500 Conductivity Electrode Series consists of high-precision two-electrode sensors designed for accurate conductivity measurement in water with very low to moderate conductivity levels. Built entirely from high-quality 316L stainless steel using a precision machining process, these sensors deliver superior stability, temperature resistance, and durability. The K5500 supports multiple process connections, making it suitable for diverse industrial water analysis applications.
| Measurement Range | 0.01~20 µS/cm; 0.1~200 µS/cm; 1~2000 µS/cm; 10~20000 µS/cm |
|---|---|
| Measurement Accuracy | ±1% |
| Temperature Range | 0 ~ 100 °C |
| Pressure Resistance Range | 0 ~ 8 Bar |
| Temperature Compensation Type | NTC10K, NTC2.252K, NTC22K, PT100, PT1000 (options available) |
| Response Time | < 10 s |
| Mounting Thread | G3/4 |
| Housing Material | 316L Stainless Steel |
| Insertion Depth | 60 mm |
| Cable Connection | Integrated Direct Connection Type |
Features Overview
- Applicable medium conductivity range: 0–20000 µS/cm.
- Different cell constants correspond to different measurement ranges.
- Excellent temperature and pressure resistance for stable performance.
- All-stainless steel construction for durability and longevity.
- IP68 waterproof rating ensures reliable use in harsh environments.
- High measurement accuracy with rapid response time.
Expansion Capability
- Electrode insertion depth can be customized.
- Mounting threads available in pipe type or submersible type.
- Cable length can be extended up to a maximum of 30 meters.
Applications
- Pure Water
- Surface Water
- Wastewater Treatment
- Reverse Osmosis Systems
- Recirculating Water
- Tap Water
K5700i-Four-Pole Graphite Digital Electrode
The K5700i Conductivity Electrode integrates the transmitter directly into the electrode, redefining communication between the electrode, end-users, and control system operators — effectively combining electrode and transmitter functions. Equipped with a built-in microprocessor, it can directly output RS485 signals. The front-mounted four-pole Hastelloy electrode ensures exceptional resistance to high temperature, corrosion, and harsh conditions, offering reliable performance with a wide measurement range and long service life.
| Measurement Range | 0 ~ 500 mS/cm |
|---|---|
| Measurement Accuracy | ±1.5% |
| Temperature Range | -20 ~ 60 °C |
| Pressure Resistance Range | 0 ~ 6 Bar |
| Temperature Compensation Type | NTC22K |
| Data Compensation | Default 25 °C temperature compensation, 2% / °C |
| Response Time | < 10 s |
| Sensor Lifespan | 2–3 years |
| Mounting Thread | G3/4 |
| Housing Material | POM |
| Length | 160 mm |
| Cable Connection | Integrated Direct Connection Type |
| Power Supply Mode | 6–30 VDC |
| Communication Mode | MODBUS RTU Protocol RS485 Communication |
Features Overview
- Measurement range up to 0–500 mS/cm.
- Single electrode covers multiple measurement ranges — no need for constant-specific models.
- Strong resistance to acid, alkali, and salt corrosion.
- Four-pole Hastelloy electrode ensures durability and long service life.
- IP68 waterproof rating for reliable underwater or harsh environment operation.
- High measurement accuracy with fast response time.
- G3/4 thread design allows direct process installation.
Expansion Capability
- Low-power consumption version available upon customization.
- Mounting threads can be configured for pipe or submersible installations.
- Cable length extendable up to a maximum of 100 meters.
Applications
- Wastewater Treatment
- Seawater Measurement
- Industrial Process Monitoring
- Acid, Alkali, and Salt Solution Analysis
K-CON5000-Conductivity Transmitter
The K-CON5000 Conductivity Transmitter adopts a miniaturized design and can be used with various conductivity electrodes of different cell constants. It integrates measurement, display, signal transmission, alarm, and communication functions, flexibly meeting the monitoring needs for various online conductivity and TDS (Total Dissolved Solids) measurements.
Equipped with a high-definition LCD screen and an intelligent bilingual (Chinese/English) interface, it offers user-friendly operation and adapts to demanding on-site industrial environments for long-term stable operation.
| Screen | 2.8-inch high-definition monochrome LCD (320×240) |
|---|---|
| Dimensions | 113.5 × 118 × 136 mm |
| Measurement Range | 0 – 20000 µS/cm |
| Resolution | 0.01 µS/cm |
| Installation Method | Panel-mounted / Pipeline-mounted / Wall-mounted |
| Mounting Hole Size | 92 × 92 mm |
| Basic Error | ±1% |
| Protection Rating | IP67 |
| Temperature Compensation Type | NTC10K / PT100 / PT1000 / NTC22K / NTC2.252K |
| Temperature Compensation Range | −20 ~ 150 °C |
| Current Output | 4 – 20 mA (Load resistance < 500 Ω); Accuracy ±0.2% |
| Relay Output | Two groups (3A 250 VAC / 3A 30 VDC) |
| Communication Output | RS485 (Modbus RTU) |
| Stability | < 1% / 24 h |
| Power Supply (Optional) | 220 VAC ± 10% / 24 VDC |
| Operating Environment | −10 ~ 60 °C; Relative Humidity ≤ 90% |
Features Overview
- High-definition LCD display for clear and easy data reading.
- Software digital filtering for excellent anti-interference performance.
- Multiple temperature compensation technologies ensure measurement accuracy.
- IP67-rated enclosure enables 24-hour continuous stable operation.
- Supports tag input and various parameter correction functions.
Applications
- Thermal Power Plants
- Chemical Industry
- Chemical Fertilizer Production
- Textile Dyeing & Printing
- Desulfurization & Denitrification Systems
- Surface Treatment
- Metallurgy
- Environmental Protection
- Pharmaceutical Industry
- Biochemical Industry
- Food & Beverage Industry
- Tap Water Supply