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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