CTZN Inductive Conductivity Sensor: Not Sensitive to Fouling.
MEASURED PARAMETERS
APPLICATIONS
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.
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.
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)