b) Same-phase asynchrony: refers to the time difference in the opening (closing) times of the same-phase breaks for switches with more than six breaks.
c) Bounce time: refers to the cumulative time of all contacts and separations (i.e., bouncing) between the moving and static contacts of the switch during the closing process (i.e., the time from the first contact to complete contact).
d) Opening time: the time interval from the moment the opening trip coil is energized to the moment when all pole arc contacts separate, for a circuit breaker in the closed position.
e) Closing time: the time interval from the moment the closing circuit is energized to the moment when all pole contacts touch, for a circuit breaker in the open position.
f) Reclosing time: during the reclosing cycle, the time interval from the starting moment of the opening time to the moment when all pole contacts touch.
g) Just-opening (closing) speed: refers to the average speed of the moving contact relative to the static contact within a specified time or distance. For example, with 10ms, for opening, it is the average speed within 10ms after opening; for closing, it is the average speed within 10ms before closing.
h) Opening distance: refers to the distance from the start of the open state to the moment when the moving contact just touches the static contact.
i) Maximum opening (closing) speed: refers to the maximum value of the instantaneous speed during opening (closing). Generally, this value should appear at the moment when the switch just opens or closes, which can be determined from the speed-travel curve.
j) Average opening (closing) speed: refers to the ratio of the travel of the moving contact to the time during the entire operation process.
Daily Maintenance
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This instrument is a precision and valuable device. Please handle it with care, protect it from heavy drops and impacts. When used outdoors, operate it in the shade as much as possible to avoid direct sunlight on the LCD screen for extended periods.
When not in use, store the instrument in a room with a temperature of -10 to 40°C, relative humidity not exceeding 80%, well-ventilated, and free from corrosive gases. During humid seasons, if it is not used for a long time, it is recommended to power it on once a month for about 1 hour.
Safety Requirements
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Please read the following safety precautions to avoid personal injury and prevent damage to this product or any other products connected to it. To avoid potential hazards, this product should only be used within the specified range.
