Level Switch - Model K5720 | Ptc Thermistor Sensor For Conductive & Non-conductive Liquids, Led Status Indicators, Optional Manual Reset

Level Switch Level Switch Model K5720 is exclusively designed to monitor level of conductive & non-conductive liquids, such as chemicals, lubricating oil, compressor seal oil, water. The level is sensed by a PTC thermistor, which is to be fixed in the vessel or lube oil tank or sump at a location where the presence or absence of the medium in terms of level is to be monitored. When the tank is filled up, the level sensor is in contact with the liquid, and exhibits a low resistance, so the relay is in OFF condition. When the liquid level goes down, the sensor is exposed to air and exhibits high resistance, switching the relay ON. When the liquid level is restored back to the required normal level and encompasses the sensor, its resistance once again reduces. The relay returns to the normal status automatically. An optional manual reset facility can be provided to restore the relay to its normal status. This feature ensures that the operating personnel confirm the availability of the liquid, while running an equipment. Status indicating LEDs are provided for Power ON condition Red and Relay ON, absence of medium, Yellow. A 2 core cable of 2 metres length is provided with sensor as standard. Longer cable upto a maximum of 5 metres can also be provided if required by user.