Cathodic Protection Monitoring

Cathodic Protection Monitoring

Cathodic protection (CP) is an electrochemical corrosion channel method used to protect metal structures from corroding. Corrosion is the destruction of a metal by a chemical or electrochemical reaction of the metal with its environment. In all electrolytes, such as soil, water and wastewater, metal atoms go into solution as electrically charged atoms (ions). This process results in rapid loss of metal commonly known as corrosion.

CP is defined as “reducing or eliminating” corrosion by making the metal a cathode by means of an impressed direct current (DC) or an attachment to a sacrificial anode (usually magnesium, aluminium or zinc).

When CP is applied, there is an exponential decrease in the rate of corrosion with increasing negative (cathodic) potential. When a certain level (protection potential) is reached, the rate of corrosion becomes negligible.

Device Features & Specifications

1.Real-time Monitoring: The device provides constant monitoring and reporting with a reporting period ranging from 30 seconds to 1+ hours, pre-configured.

2.Automatic On-Board Data Storage: The device can store up to 6K messages on-board automatically in case of communication dropouts.

3.Data Delivery to Any Third-Party Platform: The device is capable of delivering data to any third-party platform directly via MQTT messaging, providing flexibility in data management and analysis. Firmware and messaging protocol development may be required.

4.Low Power Consumption: The device operates at a low power consumption of 1.25W.

5.Wide Input Power Supply Range: The device can operate within a wide input power supply range of 9 – 48VDC.

6.Rechargeable Backup Battery: The device is equipped with a 4Ah, LiFePO4 rechargeable backup battery that provides up to 24 hours of backup time.

7.CatM1/NB-IoT Cellular Modem: The device uses a CatM1/NB-IoT cellular modem for reliable and efficient communication. Wi-Fi and Direct satellite options available.

8.Device-Sensor Interface/Protocol: UART/USART, I2C, SPI, RS485/RS422/MODBUS, SDI-12, 4-20mA loop current, 0-5V Analog output.

9.Rugged Housing: The device comes in a small, rugged flame-resistant ABS plastic (UL94V-0) housing measuring 150x110x40mm. It is IP67 rated and UV resistant.

10.Integration Capabilities: The device will be able to connect directly to the telemetry outputs on TRU and integrate with existing IoT platforms.

11.Scalability: The device will be designed to be easily scalable, allowing for the addition of more devices.

12.Security: The device will have robust security features to protect the data and prevent unauthorised access.

Example Deployment: AxisTech Water Infrastructure Monitoring Solution