CTZN: Inductive Conductivity
CTZN Inductive Conductivity Sensor: Not Sensitive to Fouling.
- Temperature regulated sensor
- Range 0 to 100 mS/cm
- Modbus RS-485 and SDI12
- Compact, robust and watertight
MEASURED PARAMETERS
- Conductivity compensated in temperature (mS/cm)
- Conductivity non-compensated in temperature (mS/cm)
- Salinity (g/Kg)
- Temperature (°C)
APPLICATIONS
- Urban wastewater treatment
- Industrial effluent treatment
- Surface water monitoring
- Sea water
- Fish farming
Utilising the CTZN Sensor in a custom IoT (Internet of Things)
The SNiP-SAL2 is a ‘Sensor Node Integrated Package’ for LoRaWAN or CAT-M1 communication of real-time salinity, conductivity and temperature measurements for continuous water quality monitoring.
The base SNiP-SAL2 integrates 1x CTZN Sensor with 1x S-NODE to a site’s unique network, communication and power requirements. The S-NODE can support an added 3x compatible sensors.
INDUCTIVE METHOD
A ring-type coil is excited at fixed intervals and the response is measured by a second coil, which is linked to the excited coil. The connectivity between the coils (determined by the degree of conductivity) takes place via the conducting solution.
The CTZN uses low-cost technology that requires little maintenance and no consumables.
DIGITAL TECHNOLOGY
The CTZN sensor stores calibration and history data within the sensor. This allows for a plug and play system without the need for re-calibration.
Modbus RS485 and SDI-12 allow the CTZN to connect to a range of dataloggers and monitoring systems.
| Measurement: | |
| Measurement Principle: | Inductive conductivity sensor, temperature regulated |
| Measurement Range: (Conductivity) |
0 to 100 ms/cm |
| Resolution: | 0.1 ms/cm |
| Measurement Range: (Salinity) |
5-60 g/Kg |
| Temperature Compensation: | Inbuilt NTC or external measurement |
| Accuracy T°C: | ± 0.1°C, range 0-40°C |
| Response Time: | 90% of the value in less than 30 seconds |
| Signal Interface: | Modbus RS-485 standard; SDI-12 optional |
| Measurement Interval: | 1Hz |
| Sensor Power Supply: | 5 to 30 volts max. |
| Current Draw: | Automatic Standby: < 50 μA, Heating time 100 ms Average Modbus RS485 – Range 0-100 ms/cm: 1Hz: • 5V: 31 mA • 12V: 15.5 mA • 24V: 11.5 mA Max. current pulse: 700 mA/2 ms, 350 mA/ 150ms |
| Sensor: | |
| Operating Temperature: | 0 to 50°C |
| Storage Temperature: | -10°C to +60°C |
| Dimensions: | Diameter: 62.4mm, Length: 196mm |
| Weight: | 700g |
| Material: | EPDM, PVC, Stainless steel |
| Maximum Pressure: | 5 bar |
| Connection: | 9 armoured connectors, polyurethane jacket, bare-wires or waterproof Fischer connector |
| Protection: | IP68 |
Dimensions (mm)
