AWQ-C4E Conductivity/Salinity Sensor.
Utilising the AWQ-C4E Sensor in a custom IoT (Internet of Things)
The SNiP-SAL is a ‘Sensor Node Integrated Package’ for LoRaWAN or CAT-M1 communication of real-time salinity, TDS, conductivity and temperature measurements for continuous water quality monitoring.
The AWQ-C4E sensor uses 4 electrode technology: an alternating current of constant voltage is established between the primary pair of graphite electrodes. The secondary platinum electrodes allow for voltage regulation of the primary electrodes to reflect fouling.
The voltage measured between the primary electrodes is a function of the resistance of the material, and thus, the conductivity.
The AWQ-C4E sensor stores calibration and history data within the sensor. This allows for a plug and play system without the need for re-calibration.
The AWQ-C4E can be connected to most Dataloggers, Controllers, Automation Systems and Alarms via Modbus RS485 or SDI-12.
|Measurement Principle:||Conductivity sensor with 4 electrodes (2 graphite, 2 platinum)|
|Resolution:||0.01 to 1, depending on range|
|Accuracy:||±1% of the full range|
|Response Time:||< 5s|
|Temperature Compensation:||NTC Thermistor|
|Sensor Interface:||Modbus RS-485 (standard); SDI-12 (optional)|
|Sensor Power Supply:||5 to 12 volts DC|
|Current Draw:||Standby: 25 μA
Average RS485 (1 measurement/second): 6.3 mA
Average SDI-12 (1 measurement/second): 9.2 mA
Current pulse: 500 mA
|Operating Temperature:||0°C to +50°C|
|Storage Temperature:||-10°C to +60°C|
|Dimensions:||Diameter: 27 mm; Length: 177 mm|
|Weight:||300g (sensor and 3 meter cable)|
|Material:||PVC, DELRIN, stainless steel|
|Maximum Pressure:||5 bar|
|Connection:||9 armoured connectors, polyurethane jacket, bare-wires or waterproof Fischer connector|