Temperature test communication report of remote measurement and control terminal (RTU)

　　Tested by: Beijing Great Wall measurement and Testing Technology Research Institute of China Aviation Industry Corporation (the first measurement and testing research center of national defense science, technology and industry)

　　Manufacturer: Beijing Juying soaring Electronics Co., Ltd

　　Instrument name: remote measurement and control terminal (RTU)

　　Model / specification: RTU

　　one

　　Reduce room temperature to low temperature (from 25.0 ℃ to - 40.0 ℃)

　　Put the bare metal of remote side control terminal into the climate test chamber Power on the test chamber The temperature of the test chamber shows 26.0 ℃ Set temperature point - 40.0 ℃ Start the climate test chamber It began to cool down

　　Normal communication

　　The data is normal

　　two Low temperature storage (40.0 ℃) The temperature of the test chamber reaches 40.0 ℃ and is maintained for 60min after equilibrium.

　　Normal communication

　　The data is normal

　　three

　　Cooling (from - 40.0 ℃ to - 45 ℃)

　　Set temperature point - 45.0 ℃ It began to cool down Cool to 45.0 ℃

　　Normal communication

　　The data is normal

　　four

　　Upper performance inspection side (- 45 ℃)

　　After the temperature of the test chamber reaches - 45.0 ℃, it shall be kept for 4H In the insulation stage, the remote measurement and control terminal is always powered on and communicated

　　Normal communication

　　The data is normal

　　five

　　Low temperature start-up reconnection performance test (I 45 ℃)

　　Power off the device Keep the temperature at 45.0 ℃ for 30 minutes Turn on the power supply of the tested equipment and monitor the network connection and data return

　　Normal start

　　Normal communication

　　The data is normal

　　six

　　Temperature rise (from 45.0 ℃ to 85.0 ℃)

　　Set the temperature point at 85 ℃, 95.0% RH Start heating up to 85.0 ℃

　　Normal communication

　　The data is normal

　　seven

　　Working performance test (85.0 ℃, 95.0% RH)

　　The temperature of the test chamber reaches 85.0'c, 95 Keep it for 3h after o% RH balance. heat preservation

　　At this stage, the remote state control terminal has been powered on and communicated

　　Normal communication

　　The data is normal

　　eight High temperature startup reconnection performance test (85. O ℃. 95. O% RH) Power off the device Keep the temperature at 85 OC, after 30 minutes of balancing, turn on

　　Turn on the power supply of the tested equipment Monitor networking and data return Normal start

　　Normal communication

　　The data is normal