Technical parameters of TCK-2T mining magnetic proximity switch sensor 1. Power supply voltage: AC85-265VAC2, contact current:/250V3, number of contacts: 2 sets of normally open and 2 sets of normally closed 4. Response speed: 30m/s 5. Working frequency: greater than 100000 times 6. Waterproof, seismic resistant, and rust resistant TCK-2T mining magnetic proximity switch sensor testing. When the magnet approaches the magnetic switch from far to near, the distance between the magnet and the magnetic switch is represented by L when L> At 255mm, the magnetic switch is in a normally open state, and at 100mm< L<245mm， The magnetic switch is in a normally closed state when L< 100mm magnetic switch in normally open operation state; This can control the installation position on site and improve the positioning of the magnetic switch. So when installing a magnetic switch, the distance between the magnet and the magnetic switch should be within the range of (150mm, 220mm) to check the critical state of the magnetic switch: the magnet is close to the magnetic switch from far to near, and when the magnet and the magnetic switch are in a position where the magnet can just make the magnetic switch move, the magnetic switch's suction action should be crisp and there should be no repeated suction actions. Reaction of magnetic switch to magnet: When the magnetic switch is used in combination with S250 magnet, the distance between the magnet and the magnetic switch is 235mm~255mm. The influence of geomagnetism on magnetic switches: A good magnetic switch needs to have good capabilities, and one of the main indicators for judgment is the influence of geomagnetism on magnetic switches. The testing method is as follows: using the S250 magnet as an example, point the head of the magnetic switch towards the geographical south and geographical north respectively, and then align the S pole row of the S250 magnet with the head of the magnetic switch for testing; In both cases, the distance between the magnetic switch and the S250 magnet should be within the range of (235mm, 255mm), with an interval of 20mm. The shorter the interval, the smaller the influence of geomagnetism, and in good cases, the interval is around 5mm. If the interval is greater than 20mm under the influence of geomagnetism, it is not a qualified and good product. KGE1-1P, KGE1-1T, KGE-1AP, TCK-1APTCK-1P, TCK-2P, TCK-3P, TCK-4PTCK-1, TCK-2, TCK-3, TCK-4TCK-1T, TCK-2T, TCK-3T, TCK-4T permanent magnet models: S-250, S-250EX，TS-360，TS-500，S-360EX，S-500EX