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First, identify the site the first time troubleshooting <br> <br> order to ensure the quality of the project, the first of the site survey sources of interference, such as can not be excluded, install the machine away from sources of interference. Interference sources generally include two types: the first type is active interference, such as various types of EDM interferences, motors, hair dryers, and ignition caused by poor contact, or interference caused by severe power supply noise; Interference is passive interference. For example, there are coiled wires near the machine, the pos machine at the cash register, various signal lines of the printer, and whether the power line has a roll.
Second, what should be noted in the installation of the detector 1) Do not install the detector within 0.5 meters of the metal door or within 1 meter of any metal object. Metal objects include metal wall bars, display shelves, metal display cabinets, metal shopping carts, etc.
2) The detector shall not be installed within 2 meters from the cash register, credit card identification device, telephone, computer, data cable, neon, air conditioner and heater.
Third, power considerations
1) Strictly grounding Some three-core sockets do not have a grounding terminal and require the power distribution cabinet to re-pull a dedicated line. Doing so complies with safety standards on the one hand and avoids accidents; on the other hand, it also reduces clutter crosstalk in the power grid.
2) Guaranteed heat dissipation Because of the long working time of the system, although the power box has enough power margin, if it is placed in a narrow or even semi-closed place, the temperature rise of the components will affect the stable operation.
Anti-theft system installation should pay attention to what matters
Anti-theft system installation should pay attention to what matters?