1. Select the type of proximity switch according to the detected object. If the detection object is a metal *** inductive proximity switch, if the detected object is a non-metal such as wood, plastic, paper, water, etc. or a smaller and thinner metal, a capacitive proximity switch should be selected.
2. The shape of the proximity switch is selected, which can be determined according to the orientation of the proximity switch installation, and there are generally cylindrical proximity switches, square proximity switches, and annular proximity switches. If you choose a cylindrical shape, you should consider how large the diameter is required, such as the square type, you must also choose the diameter of the detection surface.
3. The induction interval of the proximity switch is selected, generally speaking, the detection interval of the proximity switch is relatively short, and the common ones are 1-50mm. The longer the detection interval, the larger the detection surface and the higher the price.
4. The orientation of the switch sensing surface is generally available for front-end induction, upper induction, and inner hole induction; 5. The length of the cable near the switch is selected, and the length of the connecting cable is 2 meters as standard. If you need a longer cable, you should explain it to the manufacturer before ordering, but you can't add an extension cable after approaching the switch, which will simply lead to the instability of the output signal of the close switch.
6. The working voltage of the switch output is selected, generally DC DC24V or AC AC250V are optional;
7. Selection of close switch output mode, generally NPN-normally open, NPN-normally closed, PNP-normally open, PNP-normally closed, 2-wire normally open, 2-wire normally closed, DC 3-wire type, DC 4-wire type optional;
8. The connection mode of the close switch is selected, and there are outlet type and plug-in type optional.
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