Float liquid level switch is a compact size and highly reliable, which is widely applied in water fountain, air condition, humidifier, bathroom equipment, sale machine, oil tank and chemical liquid level control.
Specification
Model | CHN-MR1045-PS |
Basics | Material (Optional) | Stainless Steel/ Plastic |
Float Pressure | 0.7 MPa |
Applicable Temperature | -10 ~ +85 ℃ |
Withstand Voltage | 1000V/10S |
Terminal Tensile Strength | N/A |
The Contact Resistance | N/A |
Insulation resistance | 100min mΩ |
Maximum Torque | 20 N·M |
Parts | Float | φ28*28mm |
Float Ball | 1045 |
Cap Nut | M10*1.0mm |
O-ring | φ14.3mm * φ8.7mm*2 |
E-ring | φ14.2mm * φ7.2mm*1.4 |
Wire | 1000mm |
Reed Switch Technical Parameters | Contact Form (Optional) | SPST 1NO/ 1NC |
Contact Power Rating | 50W |
Max Switching Voltage | DC350V/ AC300V |
Breakdown Voltage | 600VDC |
Max Switching Current | DC0.7A/ AC0.5A |
Max Carry Current | 2.5A |
Max Contact Resistance | 100mΩ |
Min Insulation Resistance | 1010Ω |
Get an electric shock life | 107 |
Dimensions (Units: mm)

Movement Explanation
When the float down to the D position, in the position between D=3±1mm, the reed switches will be closed. Float ball reverses the opposite action.

Tips: Float liquid level sensor troubleshooting
Faults | Reasons | Solutions |
The floating ball does not work. | The specific gravity of the liquid is less than the floating ball. | Reconfirm the specific gravity of the floating ball. |
The floating ball is leakage. | Replace the floating ball. |
Foreign matters stuck the floating ball. | Remove foreign matters. |
Floating ball works but no signal output. | The position of the floating ball is offset. | Adjust the position of the floating ball. |
The magnetic spring switch is damaged. | Replace the magnetic spring switch. |
Signal output is abnormal. | There is magnetic interference nearby. | Eliminate magnetic field. |
The signal cannot be restored and the floating ball cannot be returned. | It got stuck by foreign matters. | Remove foreign matters. |
There is two signal output at one point. | Ring position moved. | Adjust it. |
Float liquid level sensor for sale, it is a floating switch composed of magnetic spring switch and floating ball. The floating ball will trigger the magnetic spring switch as the level of the liquid tested moves up and down, thus detecting the position of the liquid level. Contact form SPST 1NO/ 1NC, contact power rating 50W, selectable stainless steel or plastic.