Real-Time pH Monitoring for Aquatic and Marine Science with
Calibration-Free Solid State pH Sensors
ANB Sensors, a leading UK scientific technology company have developed ground-breaking solid-state sensors for pH, conductivity & temperature. These innovative and revolutionary sensors require NO calibration, can be stored wet or dry, require simple maintenance, and are extremely rugged.
Real-Time pH Monitoring with LoRaWAN and NB-IoT
The ANB-OC pH sensor range, integrated with Telemetry2U, is an ideal solution for real-time pH monitoring in aquatic environments. Perfect for applications in aquaculture, marine science, and oceanographic research, this advanced sensor, combined with our IoT platform, ensures precise and reliable data collection. With Telemetry2U, you can effortlessly connect, monitor, and manage your pH sensors in challenging environments, enabling you to maintain optimal water quality and make informed decisions with confidence.
- Real-Time Data Monitoring: Enables continuous, real-time monitoring of pH levels, accessible from any device connected to the Telemetry2U platform.
- Customisable Alerts: Set up specific alerts to notify you instantly when pH levels exceed predetermined thresholds, helping you respond quickly to potential issues.
- Remote Access: Monitor and manage your pH sensors from anywhere with internet access, ensuring flexibility and convenience in your operations.
- Data Logging and Analysis: Automatically logs pH data over time, allowing for detailed analysis and trend identification, crucial for long-term research projects.
- Seamless Connectivity: Easily integrates the ANB-OC Series pH sensor into your existing Telemetry2U setup, ensuring a hassle-free experience.
- Multi-Sensor Support: Manage multiple pH sensors across different locations within a single platform, simplifying complex monitoring tasks.
- Scalable Solutions: Telemetry2U offers scalable solutions, making it easy to expand your monitoring network as your research or operations grow.
Solid-State pH Sensor: Self Calibrating, Low Maintenance
The ANB pH sensor range is designed for those who need reliable and precise pH monitoring in challenging environments. These solid-state pH sensors pack a lot of capability into a robust, calibration free, low-maintenance design, for what should be the go-to choice for professionals working in marine and freshwater settings. With features like multi-parameter measurement and deep-water operation, it’s the next big thing in marine research, offering the kind of innovation that drives new discoveries and advancements in the field.
- Multi-Parameter Measurement: Simultaneously measures pH, temperature, salinity, and conductivity, providing comprehensive water quality data.
- Calibration-Free Operation: Utilises patented self-calibrating technology, eliminating the need for manual calibration. The sensor also advises when basic field maintenance is required.
- Deep-Water Capability: Operates effectively at depths of up to 1250 metres, making it ideal for deep-sea applications.
- Low Maintenance: Designed for minimal upkeep, offering low ongoing costs and reducing operational burdens.
- Biofouling Protection: Features electrochemical biofouling prevention to ensure reliable performance in challenging environments.
- Adaptable to Various Water Types: Suitable for use in both saltwater and freshwater environments, enhancing its applicability across various aquatic settings.
- Flexible Storage: Can be stored wet or dry without any degradation in performance for the ultimate convenience and reliability.
- Cost-Effective Design: Offers a very cost-efficient solution, with an easy-to-replace sensor head for long-term use.
ANB pH Sensor Cloud Integration
At Telemetry2U, we use various wireless technologies to connect your sensors to our platform, including NB-IoT and LoRaWAN which both provide a robust and flexible solution for various environments. NB-IoT, an extension of the LTE network, offers significantly improved coverage, even in challenging locations such as deep indoor environments or remote areas. This enhanced coverage, combined with its low power consumption, ensures that your sensors maintain reliable connectivity over long periods. Meanwhile, LoRaWAN uses a single internet connected gateway to connect hundreds of sensors to the cloud with a range of more than 10km outdoors. It's highly scalable with very low ongoing costs. It supports a vast number of devices and its low power usage further extends the battery life of your sensors. By integrating NB-IoT and LoRaWAN, Telemetry2U offers a versatile and dependable platform for continuous pH sensor monitoring, no matter the location.
Configure the ANB pH Sensor
Thanks to the standardised MODBUS RTU interface, the integration between the ANB pH sensor range and the Telemetry2U IoT platform doesn’t get much easier. ANB provide detailed documentation for their MODBUS RTU interface and our trusted supplier, Dragino, provide an RS485 node in both LoRaWAN and NB-IoT versions. Read more below to see how easy it is to integrate ANB pH sensors to Telemetry2U.
- Connect to the ANB OC300: Use their free utility software with the default connection settings: 57600, 8, N, 1.
- Configure for Controlled Sampling: Enter the command MODE and select option 1 to put the sensor into controlled mode.
- Enable MODBUS Mode: Enter the command INTERFACE and select option 2 to switch the sensor into MODBUS mode. The default address is 0x55.
- Make Physical Connections: The sensor is now ready to connect to the Dragino device. Simply connect the RS485 A- and B+ lines together.
Configure the the Dragino RS485 Converter
We now need to set up the Dragino device to send the MODBUS commands required to start a pH scan, read the register, and stop the scan. The ANB pH sensor range requires a 3-minute warm up time upon first power-up, we have chosen to allow 5-minutes to ensure ample stabilisation time. It would be a good idea to review Dragino's documentation to become familiar with the device as we will not go into too much detail here.
- Connect to the Dragino Device:Refer to the device documentation and connect to the device with either a PC or smartphone. We recommend using a PC.
- Match Communication Settings: Change the baud rate to 57600 with the command AT+BAUD=57600 to match the default baud rate of the ANB pH sensor range.
- Program Command Set: Send the following commands to configure the command set that will be sent to the pH sensor at every transmit interval.
Note:
It is recommended to change the transmit interval of the Dragino device to 60 minutes (AT+TDC=60000) since the ANB range of pH sensors performs an automatic sensor conditioning cycle every time a scan is started. This is usually required once per hour. A sensor conditioning performed more frequently than this may degrade the sensors life-span.
| Command | Data Cut | Delay | Function |
|---|---|---|---|
| AT+COMMAND1=55 06 00 00 00 04,1 | AT+DATACUT1=0,0,0 | AT+CMDDL1=60000 | Start fresh water scan |
| AT+COMMAND2=100,0 | AT+DATACUT2=0,0,0 | AT+CMDDL2=60000 | 1-minute delay |
| AT+COMMAND3=100,0 | AT+DATACUT3=0,0,0 | AT+CMDDL3=60000 | 1-minute delay |
| AT+COMMAND4=100,0 | AT+DATACUT4=0,0,0 | AT+CMDDL4=60000 | 1-minute delay |
| AT+COMMAND5=100,0 | AT+DATACUT5=0,0,0 | AT+CMDDL5=60000 | 1-minute delay |
| AT+COMMAND6=55 03 00 00 00 09,1 | AT+DATACUT6=23,2,4~21 | AT+CMDDL6=400 | Read Registers |
| AT+COMMAND7=55 06 00 00 00 00,1 | AT+DATACUT7=0,0,0 | AT+CMDDL7=400 | Stop Scanning |
Command 1 tells the ANB pH sensor to start a fresh water scan and return no data. It then has a delay of 60 seconds before moving to the next command.
Commands 2-5 perform no action and return no data; they simply provide an additional 4-minute delay in total (the dragino device has a delay limit of 65 seconds per command).
Command 6 reads the registers that hold the data for pH, Temperature, Salinity, Conductivity, and sensor health. It cuts bytes 4 to 21 from the pH sensor response and disregards the rest.
Command 7 tells the ANB pH sensor to stop the scan.
Now just add the Dragino device to Telemetry2U, select the ANB pH Sensor V1.0 decoder and you'll be able to see the pH sensor data in real time - It’s as simple as that. Customise your own real-time dashboards, analyse historical data, configure alerts, trigger other devices and actuators, share with other users, and much more.
Endless Possibilities with Telemetry2U’s IoT Solutions
With Telemetry2U's versatile platform and an extensive array of IoT sensors, the possibilities for innovative applications are virtually limitless. Whether you’re looking to improve efficiency, enhance monitoring capabilities, or automate processes, Telemetry2U provides the flexibility and tools you need to bring your ideas to life.
- Energy Monitoring: Gain precise, real-time insights into your energy consumption. Our platform not only tracks power usage but also enables you to control systems remotely, helping you save on energy costs and improve operational efficiency.
- Leak Detection: Prevent costly damages with instant alerts from our leak detection sensors. Whether it’s water, or any critical substance, Telemetry2U ensures you’re always aware of leaks before they escalate.
- Water Level Monitoring: Keep an eye on your tanks, ponds, or reservoirs from anywhere. With real-time updates and historical data logging, you can optimise your water management processes and prevent issues before they arise.
- Oceanography & Aquaculture: Enhance your marine science or aquaculture operations by integrating water quality sensors with our IoT platform. Measure salinity, pH, and more, with data accessible from anywhere.
- Temperature Monitoring: Our solution ensures compliance with industry standards while providing real-time monitoring to prevent temperature-related issues, safeguarding your valuable assets.
- Asset Tracking: Stay in control of your assets with GPS tracking and motion detection features. Ideal for fleet management or high-value equipment, our solution offers real-time updates and rollover alerts.
Stand-Alone Solution for Wireless pH Monitoring
Powering your ANB pH sensors couldn’t be easier with our range of power enclosures, available in both 12V and solar options. Whether you’re working in remote locations or need a reliable off-grid solution, our 20W Solar Kit with an IP67 Enclosure and 12V SLA Battery has you covered. With a Dragino LoRaWAN or NB-IoT device fitted and programmed, it is designed to pair seamlessly with the ANB pH sensor range and get you up and running fast.
Our 12V enclosures come with an isolated 12V power supply to offer added protection for sensitive electronics. We take care of the hard work for you - each unit is fully assembled, tested, and ready to go straight out of the box. This means faster installation and a smoother experience when integrating your sensors.
But it doesn’t stop with just ANB pH sensors. Our enclosures and wireless hardware can be used to connect a wide variety of other sensors, making them the perfect choice for anyone needing a flexible, plug-and-play solution.
Working Examples
Check out a couple of our example dashboards, offering real-time and historical insights with both an In-Situ AquaTroll 500 SONDE and some other Oceanographic Sensors. See first hand how our versatile solutions optimise resource management and efficiency
Aquaculture Sensors - AT500
Oceanographic Sensors
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