ST-CW880A Wireless Temperature Color Display Mini 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 | 2.4G/433M optional Number of Wireless Sensors Managed | Up to 240 wireless temperature sensors + wireless humidity sensors Display Mode | 3.5-inch color screen display + touch buttons Wired Communication Interface | RS485 (MODBUS-RTU protocol), can be equipped with 2 RS485 interfaces Wireless Communication Interface | Lora wireless interface, communication distance 1500m; NB-IoT wireless (MODBUS-RTU protocol) Temperature/Humidity Control Function | Can connect 2 wired temperature/humidity sensors, automatic heating/ventilation (optional) Relay Output | Optional 2 channels, contact capacity AC220V/5A Power Supply | AC85~265V/DC110~370V, other power supplies can be customized Installation | DIN-rail/embedded mounting Cut-out Dimension | 91*91mm Main Functions: Function | Description Receive Data | Receives temperature and sensor operating voltage uploaded by wireless temperature sensors Display Data | Color displays received data with intuitive effect; backlight switch is controllable, suitable for various application scenarios Clock Display | Real-time clock display serving as time reference for event records Parameter Setting | All parameters are flexibly configurable, easy to operate, data not lost during power failure Alarm Output | When an alarm event occurs, relay dry contact signal outputs and buzzer alarm sounds Temperature Extreme Record | Records the maximum and minimum temperature of each temperature measurement point monthly, together with corresponding supply voltage and occurrence time; when used across years, automatically overwrites the previous year's data for the same month Temperature Alarm Record | Records the temperature, start time and end time of the temperature measurement position where alarms have occurred, up to 100 records can be saved; when exceeding 100 records, automatically overwrites the earliest record Temperature Imbalance Record | When three-phase temperatures of the same group of temperature measurement positions are unequal, records the current temperature and occurrence time of each phase in the group monthly and calculates imbalance degree; when used across years, automatically overwrites the previous year's data for the same month Password Management | Password management is adopted; password must be entered when setting parameters; passwords are divided into user password and system password; entering system password enables more advanced setting functions Product Drawing: