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Water Quality Station for pH, Redox and Temperature - IC-SNiP-pHR-SL

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Product code: IC-SNiP-pHR-SL
Water Quality Station for pH, redox and temperature (can be expanded to include additional parameters). Includes: 1 x pHEHT, S-NODE with LoRaWAN communications, 13Ah rechargeable li-ion battery, 10W Solar Panel and SPLM7 mounting system for node and solar panel.

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The SNiP-pHR is a 'Sensor Node Integrated Package' for LoRa, LoRaWAN, FSK or CAT-M1 communication of real-time pH, Redox and temperature measurements for continuous water quality monitoring.

Optional features include GNSS to record device location for spatially enabled data.

The base SNiP-pHR integrates 1x S-NODE and 1x pHEHT Sensor to a site's unique network, communication and power requirements. The S-NODE can support an added 3x Sensors.

S-NODE: SDI-12 Node

The S-NODE has been designed to support the broad suite of SDI-12 based environmental sensors. The S-NODE can support sensors with higher power requirements; a solar panel can charge either the internal lithium-ion battery or both the node and sensor can be powered by an external 12V system (e.g. battery or mains source). The S-Node's SDI-12 communications can be customised to allow for interfacing with any SDI-12 sensor.

A decoder suitable for TTN will be provided based upon sensor configuration.

The pHEHT sensor

ThepHEHT sensor has been designed to perform under hard conditions, from pure mountain water with conductivity as low as 20 ?S/cm, lakes and rivers (100 to 2000 uS/cm), seawater with conductivities of 50 mS/cm, to wastewater with conductivity higher than 200 mS/cm.

 

Specifications

pH:

- Measurement Principle: Combined electrode (pH/ref): special glass, Ag/AgCI ref. Gelled electrolyte (KCI)
- Range: 0 to 14 pH
- Resolution: 0.01 pH
- Accuracy: +/- 0.1 pH

Redox:

- Measurement Principle: Combined electrode (Redox/reference): Platinum tip, Ag/AgCI AgAgCl. Gelled reference (KCI)
- Range: -1000 to +1000 mV
- Resolution: 0.1 mV
- Accuracy: +/- 2 mV

Temperature:

- Technology: NTC Thermistor
- Range: 0 C to 50 C
- Resolution: 0.01 C
- Accuracy: +/- 0.5 C
- Response Time: less than 5 s

Sensor:

- Interface: Modbus RS-485 standard; SDI-12 optional
- Power supply: 5 to 12 volts
- Current Draw: Standby: 25uA/Average RS485 (1 Hz): 3.9 mA/Average SDI12 (1 Hz): 6.8 mA/Current pulse: 500 mA
- Storage Temperature: 0 C to 60 C
- Protection: IP 68
- Dimensions: Diameter: 27/21mm; Length: 207mm
- Weight: 350g (sensor and 3m cable)
- Material: PVC, DELRIN, special pH glass, platinum, polyamide
- Maximum Pressure: 5 bar
- Cable: Coaxial armoured, Polyurethane, bare wire or Fischer connector

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