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The LF30 employs a differential pressure to actuate a precision snap switch at chosen pressure setting. This may be the difference between atmospheric and a negative or positive pressure or between any two given pressures. When a change of pressure occurs between the negative pressure chamber and the positive pressure chamber the main diaphragm activates the snap switch at a pre-determined value.
| Model | LF30 |
| Media | Air, products of combustion or natural gas |
| Mounting/Fixing | 4 screws with maximum penetration depth of 6.3mm into appropriate mounting holes, or fixed with optional bracket |
| Mounting Position | The LFAS is position sensitive. It may be mounted in most positions provided it has been calibrated |
| Pressure Range | 0.4mbar~8.0mbar make on positive or negative pressure rise. Minimum upper switching pressure 0.4mbar. Minimum lower switching pressure 0.2mbar |
| Switch Differential | Not less than 0.1mbar and not greater than 0.3mbar depending on pressure settings |
| Maximum Operating Pressure | 10mbar Pmax=50mbar |
| Operating Temperature Range | 105℃ Maximum |
| Electric Rating | 0.1A, 5A, 16A, 125/250VAC. other ratings are available on request |
| Contact Arrangement | SPDT or SPST |
| Terminal | 6.3 or 4.8mm male Q.C. Optional insulation cover available as necessary |
| Calibration Tolerance | Standard production tolerance at ambient temperature is ±0.10mbar or ±5% of set point, whichever is the greater. |
Conversion: 1mbar=100Pa 1"W.C=249Pa
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