ST-CW880D Wireless Temperature DIN-Rail Host

Overview: The temperature monitoring points of high-voltage electrical equipment are located in environments with high voltage, large current and strong magnetic field, and some monitoring points are even in enclosed spaces. Due to issues such as strong electromagnetic noise, high-voltage insulation, and space constraints, conventional temperature measurement methods cannot solve these problems and therefore cannot be used. The wireless temperature monitoring system independently developed and designed by our company uses radio waves for signal transmission. The sensors are installed on high-voltage equipment with no electrical connection to the receiving devices, fundamentally solving the problem of difficulty in real-time online monitoring of the operating temperature of high-voltage equipment contacts. The wireless temperature monitoring system features high reliability and safety, with relatively low price, and can be directly installed on each high-voltage switch, busbar joint, outdoor disconnector, or transformer. The system is equipped with standard communication interfaces and supports networking. Through the host computer software, the real-time operating temperature data of high-voltage equipment can be recorded, providing accumulated data for high-voltage equipment maintenance and achieving predictive maintenance of high-voltage equipment thermal faults. Technical Parameters: Technical Parameter | Specification Wireless Frequency | 433M Number of Wireless Sensors Managed | 240 Display Mode | No display Communication Interface | RS485 (MODBUS-RTU protocol) Power Supply | DC9-36V Dimension | 88*59*37mm Installation | DIN-rail Relay Dry Contact Parameter | AC220V/5A (1 group of NO/NC contacts) Working Voltage | AC85~265V/DC110~370V Overall Power Consumption | ≤5VA Working Temperature | -10℃~+70℃ Working Humidity | ≤90%RH, no condensation, non-corrosive Altitude | ≤2500m Protection Level | IP20 Insulation Resistance | ≥100MΩ (temperature 10~30℃, RH <80%) Installation | Snap-on mounting Main Functions: Function | Description Communication Parameters | Parameters set during communication Wireless Parameters | Matching parameters between receiving module and temperature sensors Temperature Parameters | 16-bit data, high byte first, accuracy 0.1℃, error ±1℃ Voltage Parameters | 16-bit data, high byte first; for active sensors, this value is battery voltage; for passive sensors, this value is the voltage after current-taking rectification and stabilization ID Register Parameters | Sensor ID can be set Register Address Parameters | The starting address of parameter register can be modified Alarm Temperature and Status Information | Default alarm temperature is 90℃. Status information: 0x0000 indicates no overtemperature, 0xFFFF indicates overtemperature, 0x1111 indicates that the maximum temperature is negative; if the maximum temperature is positive, it is the maximum temperature; if negative, it is the minimum temperature Product Drawing: Product Construction Drawing: