The air differential pressure switch 930-series is suitable for low differential pressure switching applications in air-conditioning systems for providing indication of fan status or ´filter dirty`.

The cable gland for air differential pressure switch 930-series using a cap nut offers highly effective strain relief and a considerably better sealing function.

With the air differential pressure switch 930-series the switching pressure can be adjusted manual by hand or with a screwdriver using a scaled adjustment knob located under the cover.

Applications

Air differential pressure switch 930-series used for monitoring overpressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases.

Possible fields of application for air differential pressure switch 930-series:

• Monitoring air filters and ventilators
• Monitoring industrial cooling-air circuits
• Overheating protection for fan heaters
• Monitoring flows in ventilation ducts
• Controlling air and fire-protection flaps
• Frost protection for heat exchangers

9 different pressure ranges air differential pressure switch 930-series

• 930.80, pressure range 20-200 Pa
• 930.80N, pressure range 20-300 Pa
• 930.84, pressure range 30-400 Pa
• 930.83, pressure range 50-500 Pa
• 930.85, pressure range 200-1.000 Pa
• 930.85N, pressure range 100-1.000 Pa
• 930.86, pressure range 500-2.500 Pa
• 930.87, pressure range 1.000-4.000 Pa
• 930.87N, pressure range 1.000-5.000 Pa

Supplied with:

• Duct Fixing Kit DFK 200 includes:
• 2x plastic tubes with integrated mounting plate,
• 2x metres PVC hose and
• 4x screws