High quality Air Differential Pressure Switch

Differential pressure switch used for Air and other non-combustible, non-aggressive gases Monitor overpressure, vacuum

Applications

Air and other non-combustible, non-aggressive gases

Monitor overpressure, vacuum and differential pressure for air and compatible gases.

Possible applications are:

monitor air filters and ventilators

monitor air status in heating and cooling circuits

monitor flows in ventilation duct

other applications

Specifications

Adjustable range: 4 ranges selectable, different engineering units available, see models

Pressure limit: 7500Pa

Working temperature: -20~ 85°C

Storage temperature: -40~85°C

Pressure connection: φ6.0mm plastic pipe, P1 high and

P2 low pressure

Service life: over 106 switching cycles

Electrical Contact: SPDT, max. 2A/250VAC,         max. frequency 6 switching cycles/min

Electrical connection: 3 screw terminals

Repeatability: ±2%

Materials: housing PC, cover PC, diaphragm silicone and contact silver

Weight: 140g with bracket, 90g without bracket

Protection: IP54 with cover

Installation: vertical, pressure ports P1 and P2 downward.

This is the factory-calibrated position. If horizontally

installation needed, the switching value should plus about 20pa (cover upward) and minus about 10pa (cover downward). See operation manual.

Accessory: the pressure connection set (part number 1001)

includes plastic pipe 2m, 2 pressure connection parts and 4 screws.

Structure

1. Bracket for installation

2. Diaphragm

3. P1 high pressure or low vacuum

4. P2 low pressure or high vacuum

5. Scale dial (switching point setting)

Remark: it is for the one with bracket, the left one in the upper left picture of this page. Another style with installation ear is the right one in the picture. The two styles are for different applications. Their internal structures are the same.

Models 

	609.	X	X	X	Scales for different units
Enclosure	With install ear	0
	No ear, with bracket	1			mbar	inch wc	mm wc
Adjustable range	20-300Pa		0		0.2-3	0.08-1.2	2-30
	50-500Pa		1		0.5-5	0.2-2	5-50
	100-1000Pa		2		1-10	0.4-4	10-100
	0.5-2.5KPa		3		5-25	2-10	50-250
Engineering unit	Pa			0
	mbar			7
	inch wc			8
	mm wc			9

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