AWQ-pH: pH, Redox & Temperature
The AQW-pH sensor has been designed to perform under hard conditions, from pure mountain water with conductivity as low as 20 μS/cm, lakes and rivers (100 – 2000 μS/cm), seawater with conductivities of 50 mS/cm, to wastewater with conductivity higher than 200 mS/cm.
RANGE
• pH : 0 to 14
• Redox: -1000 to +1000 mV
• T°C : -10°C to +50°C
• Combination pH/Redox/Temp sensor
• Digital Sensor: Modbus RS 485/SDI-12
• Internal Calibration Data Storage
• pH/ORP Cartridge
Utilising the AWQ-pH Sensor in a custom IoT (Internet of Things)
The SNiP-pHR is a ‘Sensor Node Integrated Package’ for LoRaWAN or CAT-M1 communication of real-time pH, Redox and temperature measurements for continuous water quality monitoring.
The base SNiP-pHR integrates 1x AWQ-pH 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.
DIGITAL TECHNOLOGY
| pH | |
| Measurement Principle: | Combined electrode (pH/ref): special glass, Ag/AgCI ref. Gelled electrolyte (KCI) |
| Range: | 0 – 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: | < 5 s |
| Sensor | |
| Interface: | Modbus RS-485 standard; SDI-12 optional |
| Power supply: | 5 to 12 volts |
| Current Draw: | Standby: 25μA 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 |
| Protection: | IP68 |
Dimensions (mm)
