This product uses electrochemical principle to detect O3 in the air, with good selectivity and stability. Built in temperature sensor for temperature compensation.
This product uses the 470MHz LoRa wireless communication technology platform. The communication protocol uses the Internet of Things micro power wireless network communication protocol of the State Grid power transmission and transformation equipment to achieve dual-way communication. It also has RS485 communication mode to meet the user's multiple communication needs, achieve intelligent management of ozone concentration in the operating environment of power equipment, and provide data support for the safe operation of power grid equipment.
1. Main technical parameters
| Operating frequency band | 470MHz |
| Communication mode | LoRa/RS485 |
| Communication protocol | Low power waste wireless networking communication protocol for power transmission and transformation equipment of State Grid |
| Maximum transmit power | 17dBm±2dB@812kbps |
| Power supply mode | 22VAC power supply |
| Range of a survey instrument | 0 ~ 100ppm |
| Resolution power | 0.1ppm |
| Operating ambient temperature | -40℃ ~ 85℃ |
| Installation method | Magnetic absorb (default), optional rail mounted |
| Life expectancy | ＞10 years ( -20℃ ~ 50℃ ) |
| Degree of protection | IP40 |
| Flame retardant grade | V0 |
2、Communication protocol
Comply with the State Grid Transmission and Transformation Equipment IoT Sensor Data Communication Protocol
1. Main functional features
Support the Internet of Things micro power wireless network communication protocol for power transmission and transformation equipment;
Real time measurement and dual-way communication;
Wireless communication and easy to install;
High sensitivity and high resolution;
Advanced circuit design, high measurement accuracy and stable performance.
2. Definition of connecting terminal
L N: Connected to 220VAC AC
GND: Connected to RS485 shielded wire
A B: Connected to RS485 communication line
