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 36.52 260±25 40.80 70±8 41.25 50±6 41.70 30±8 42.3+0.7/-0.3 0 |
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| Electric performance | Insulation resistance | The insulation resistance is more than 100MΩ between live parts and non live parts |
| 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 |
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| Life resistence function | Rated voltage is applied, to 10 times / min speed alternating with the highest water level and lowest sensor, sensing water level pressure, make the reciprocating diaphragm were 50000 times, frequency - level should meet the requirements | |
| Environmental requirements | The products and packaging are in line with the EU RoHS directive 2011/65/EU | |
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WORKING CONDITONS |
Working temperature: -10℃,+50℃
Max altitude: 2500M |
Frequency-Water level curve
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