Basic information
Magnetic float level sensor - plastic SF122 is a very simple way to detect a high or too low level.
Principle of float level sensor
The float consists of a rod (permanent magnet inside) connected to the sensor. As the liquid level rises or falls, the strength of the magnetic field required to close the contact changes. The contact is connected directly to the sensor wires and switches on / off the electrical circuit to which it is connected. The sensor does not require any supply voltage, so it is voltage-free.
- float level sensor
- switching positions: horizontal
- Function principle: magnetic contact
- maximum operating pressure: 0.3 MPa
- maximum temperature of the measured liquid: from -20 ° C to + 125 ° C
- ambient temperature: from -40 ° C to 80 ° C
- minimum density of the measured medium: 0.7g / cm3
- degree of protection: IP 65
- explosion-proof design
- connection: external thread 1/2 NPT
- material: polypropylene
- closed with float in the axis (max. angle 5 °)
- switched off when deviating from the axis (max. angle 75 °)
- sensor connection: two-core cable (length 0.35 m)
Electrical data
| Rated contact power (max.) | 10 W |
| Maximum switching voltage | 200 V DC and 140 V AC |
| Maximum switching current (AC) | 500 mA |
| Maximum switching current (DC) | 500 mA |
| Maximum switching current to active load | 1 A |
| Fault voltage (min) | 250 V DC |
| Contact resistance (min) | 200 mΩ |
Areas of application
- sensing the lower level of the refrigerant
- food and beverage industry
- dairy industry
- fuel or oil level sensing
- liquid level monitoring
- vending machines
- home appliances
- medical equipment
- sanitary facilities
More from the category
Magnetic float level sensor - plastic
Magnetic float level sensor - plastic
Magnetic float level sensor - plastic SF122 is a very simple way to detect a high or too…
Price from
269,00 Kč
