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Low pressure switch PS-LA2

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product category: Air,Gas Pressure Switch
Model: PS-LA2

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Product Detail

 PS-LA2  adopts 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.
 It is manufactured from selected compound derivatives of polycarbonate & PBT offering exceptional thermal and dimensional stability at elevated temperatures up to 105℃ when used in contaminated atmospheres of air, products of combustion, L.P. or natural gas. It has been designed to meet the low pressure, high temperature specifications of future generations of fanned gas and similar appliances where differential pressures form part of an integral control systems.
Detects air flow in forced draught appliances
Signals either positive, negative or zero air movement
Shut down burner in blocked flue conditions
Guards against poor or hazardous combustion
Indicates dirty or inefficient filters

Model PS-LA2
Medium 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 It can be mounted in most positions.
Field Adjustable Range 0.4mbar ~ 8.0mbar (positive /negative pressure range). Minimum upper switching pressure 0.4mbar. Minimum lower switching pressure 0.2mbar.
Switch Differential ≥0.1mbar, ≤0.3mbar, depending on pressure settings.
Max. Operating Pressure 10mbar   Pmax=50mbar. 
Operating Temperature Range ≤105℃  
Electric Rating 0.1A,3A,5A @125/250VAC.
Other ratings are available on request.
Contact Arrangement SPDT / SPST
Terminals 6.3 or 4.8 mm male Q.C.
Optional insulation cover available as necessary.
Calibration Normally calibrated at their lower switching pressure in accordance with customer requirements.
Ramp rate at switch point=0.03mbar/second
Calibration Tolerance Standard production tolerance at ambient temperature is ± 0.10mbar or ± 5% of set point, whichever is the greater.
Connections 6mm O.D. for tube connection 

Conversion: 1mbar=100pa  1'' W.C.=249pa
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