The ATEX approved Series AT1ADPS Adjustable Differential Pressure Switch is designed for pressure, vacuum, and differential pressure applications in hazardous areas.
The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gauge.
The switch is available with settings from 0.08 in w.c. (20 Pa) up to 16 in w.c. (4000 Pa). The silicone diaphragm makes this series ideal for use with air and other non-combustible gases.
Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing set point status on adjustment knob.
Important notes for installation:
Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
Open cover only after de-energizing instrument.
Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.
Features
Flame-proof ATEX enclosure with optional glass window and aluminum housing protects the device in hazardous areas while giving local visibility to set point status