Entrance guard system power how to choose?
2022-06-04 00:00:00
1. The power is.We are not only required power is good, but to achieve a steady power, stable output current.
test method: through the multimeter to actual output of the power supply current value, voltage test, the output voltage and current can on the rated output values.
2. The overload protection.Short circuit protection function, this is mainly used to prevent voltage instability or line wrong and cause damage;
test method: you can check the instruction manual for this function, can any connection test.
3. Open circuit protection.Here can open circuit protection when using battery power supply, automatic cutting off other power supply, such as cameras, the basic operation of the security door.
test method: you can check the instruction manual for this function, can any connection test.
4. Charge and discharge management.Constant current charging, ensure the front other equipment power supply, prevent the battery overcharge, discharge, prolong the service life of the battery;
test method: through the multimeter to actual output of the power supply current value, voltage test, the output voltage and current can on the rated output values.
5. Isolation function.Multiplexed output circuit, the circuit fault will not affect the normal operation of entrance guard all the way.
test method: here we can be judged by the number of the power supply output port have multiple output.