The LF32 is an adjustable differential pressure switch capable of detecting miniscule changes in pressure do to its size and proven design. The air pressure switch set point or switching point can be field adjustable with out the need of a manometer by simply using the adjustment knob and the built in calibrated visual scale. This air flow switch is equip with a clear cover that not only protects the adjustment knob to be move involuntary but also provides class IP54 protection.
The LF32 Air Sensing Switch is primarily used in heating and ventilation application where the need of accurately monitoring air flow in air duct systems, air filters, flaps are 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 (over heating protection)
Frost protection for heat exchanger
The LF32 Adjustable pressure differential switch can also be used as an adjustable pressure switch and adjustable vacuum switch as well.
| Series No. | LF32 |
| 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 | 6.0mmDia. 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"W.C.= 1 inch/H2O=249Pa 1mbar=100Pa
Ps: 1 box(10-100 pieces) minimum order.Quantity discounts.
