LF32
LF32
LF32 Air Differential Pressure Switch
20~5000Pa
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The LF32 is an adjustable differential pressure switch capable of detecting minuscule changes in pressure due to its size and proven design.
The switch set point or switching point can be field adjustable without the need for a manometer by simply using the adjustment knob and the built-in calibrated visual scale.
This switch is equipped with a clear cover that not only protects the adjustment knob from accidental adjustment but also provides class IP54 protection.
The LF32 Air Sensing Switch is primarily used in heating and ventilation applications where the need to accurately monitor airflow in air duct systems, air filters, and flaps is critical.
Some specific applications of the LF32 Air Handling Unit Pressure Switch are :
Controlling fire protection flaps in ventilation ducts
Monitoring air filters in cooling and heating systems
Monitoring cooling systems of industrial electronic circuits,
Monitoring positive pressure on pressurized rooms
Monitoring air flow on fan heaters (overheating protection)
Frost protection for heat exchanger
The LF32 Adjustable differential pressure switch can also be used as an adjustable pressure switch and adjustable vacuum switch as well
| Medium | Air, non-combustible and non-aggressive gasses | ||
| Max Operating Pressure | 10 kPa | ||
| Mounting position | Diaphragm in any vertical plane | ||
| Degree of protection | IP54 (with cover) | ||
| Operating Temperature | -20°C to 85°C | ||
| Contact Arrangement | SPST or SPDT | ||
| Electrical Rating | Resistance: Initial <400 milliohms; 1.5A (0.4A) @ 250V | ||
| Terminals | 6.4 mm (0.25″) copper alloy | ||
| Connection | 6.0mm Dia. for tube connection | ||
| Approval | UL, CE | ||
| Model | Pressure Range | Differential | Tolerance |
| LF32-02 | 20 ~ 200 Pa | 10 Pa | +/-15% |
| LF32-03 | 30 ~300 Pa | 10 Pa | +/-15% |
| LF32-04 | 40 ~400 Pa | 20 Pa | +/-15% |
| LF32-05 | 50 ~ 500 Pa | 20 Pa | +/-15% |
| LF32-10 | 200 ~ 1000 Pa | 100 Pa | +/-15% |
| LF32-25 | 500 ~ 2500 Pa | 150 Pa | +/-15% |
| LF32-50 | 1000 ~5000 Pa | 250 Pa | +/-15% |
| Conversion: 1″H2O=249Pa, 1mbar=100Pa | |||