Float Level Sensors

SSF67B50B200PM12 are float level sensors used in various applications to sense the level of a liquid in a container. The device consists of a float, reed switch, and magnet assembly encased in a stainless steel housing. The float is designed to follow the liquid level, and as it does, the reed switch and magnet combination causes the internal contacts to open or close. The reed switch is hermetically sealed in the stainless steel housing and the magnet assembly is permanently mounted to the float.

Applications

Float level sensors are used to provide an indication of the level of a liquid in a variety of containers. These applications include industrial process tanks, oil tanks, fuel tanks, water tanks, wastewater tanks, and drinking water tanks. They are also commonly found in automotive applications where they are used to monitor the fuel level in a vehicle.

The SSF67B50B200PM12 is a float level switch designed for use in applications requiring a high degree of accuracy and reliability. It is ideal for applications that require a liquid level measurement within ±15 mm accuracy and have liquid temperatures up to 140°C. It has a maximum switching current of 10 A and a maximum switching voltage of 250 V.

Working Principle

Float level sensors consist of a float, reed switch, and magnet assembly. The float is fixed to the container and allowed to move up and down with the liquid level. As the liquid rises, the float also rises and pulls the connected magnet along with it. This in turn closes the reed switch contacts. When the liquid level drops, the float drops and the magnet moves away from the reed switch contacts, allowing them to open. In this way, the liquid level can be monitored by sensing the open or closed state of the reed switch contacts.

The SSF67B50B200PM12 has an IP67 environmental rating, which means that it is protected against the ingress of dust and against immersion in water up to a depth of 1 meter for up to 30 minutes. This makes the device suitable for use in harsh environments.

Conclusion

The SSF67B50B200PM12 is a float level sensor designed for use in a variety of applications. It is ideal for applications requiring a high degree of accuracy and reliability, as well as liquid temperatures up to 140°C. The device consists of a float, reed switch, and magnet assembly, which operate together to provide an indication of the liquid level in a container.