SW series water level sensor is a component designed for checking water level. According to the water level, the product sends oscillation frequency to the appliance’s control board. It depends on the pressure, magnetic field, and electric signal to realize the function.
| Working voltage | DC5V±0.1V | |
| Frequency | / | |
| Water level |
Frequency kHz water level mm 42.35+0.6/-0.4 0 41.38 55±10 40.80 82±6 40.60 92±6 40.40 100±6 40.20 109±10 39.80 127±10 39.40 145±10 39.00 164±10 35.80 343±20 |
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| Electric performance | Insulation resistance |
Insulation resistance between terminal and mounting plate ≥100MΩ |
| Working frequency | / | |
| Environmental adaptation performance |
High temperature |
Put the product in（60±3）℃ for 48h, then back to normal temperature for 1h. After that, water level-frequency curve should meet requirements. |
|
Low temperature |
Put the product in（-20±3）℃ for 48h, then back to normal temperature for 1h. After that, water level-frequency curve should meet requirements. | |
|
Humidity |
Put the product in (40℃±3℃, RH95%)for 168h. After that, apply 1200V between the terminal and mounting plate for 1s. There should be no breakdown or flashover, and the insulation resistance between terminal and mounting plate ≥10MΩ |
|
| Life resistence function | At rated voltage with 20 back to the speed of /min continuous action 60000 back to the various parts of abnormal; put 2H at room temperature, before and after test the change of water level under 15mm | |
| Environmental requirements | The products and packaging are in line with the EU RoHS directive 2011/65/EU | |
|
Working Conditons |
Working temperature: -10℃,+50℃
Max altitude: 2500M |
Frequency-Water level curve
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