Parshvi Technology (India) Private Limited

Adjustable differential pressure switch for monitoring overpressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases.

The switching pressure can be adjusted without a pressure gauge using a scaled adjustment knob. Various versions with overlapping adjustment ranges between 0.2 mbar and 50 mbar are available for this purpose. As standard, the pressure switch is equipped with a transparent cover of protection class IP54.

NEW: This series is also available with an ATEX type examination.

Application:

• 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

• Temperature range:
  Medium and ambient temperature from –20°C to +85°C
  Storage temperature from –40°C to +85°C
• Diaphragm material:
  Silicone, free of gas emissions.
• Pressure connection:
  2 plastic pipe connection pieces (P1 and P2), external diameter 6.0 mm.
• Electrical rating:
  Standard version: max. 1,5 A (0,4 A) / 250 VAC
  Low voltage version: max.0,1A / 24VDC.
• Electrical connection:
  Tab terminals 6.3×0.8 mm in accordance with DIN 46244 or push-on screw terminals.
  Cable conduit with cable strain relief.
• Protection class:
  IP 54 with cover
  IP 65 with cover 

Additional Information:

• Item Code: 930.8x
• Delivery Time: Ready stock
• Packaging Details: Box packing

Adjustable differential pressure switch for monitoring overpressure, vacuum and differential pressure of air or other non-combustible, non-aggressive gases.

The switching pressure can be adjusted without a pressure gauge using a scaled adjustment knob. Various versions with overlapping adjustment ranges between 0.2 mbar and 50 mbar are available for this purpose. As standard, the pressure switch is equipped with a transparent cover of protection class IP54.

Application:

• 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 Ex zones 1, 2 and 21, 22 with ATEX type examination

• Temperature range:
  Medium and ambient temperature from 20°C to +85°C
  Storage temperature from 40°C to +85°C
• Diaphragm material:
  Silicone, tempered at 200°C free of gas emissions (other materials on request).
• Pressure connection:
  2 plastic pipe connection pieces (P1 and P2), external diameter 6.0 mm.
• Electrical rating:
  24 VDC/100 mA
  30 VDC/60 mA
• Electrical connection:
  AMP flat plug, 6.3 mm x 0.8 mm, in accordance with DIN 46244 or push-on screw terminals.
• Protection class:
  IP 54 with cover
• Arrangement of contacts:
  

Adjustable differential pressure switch monitoring overpressure, vacuum or differential pressure of liquid and gaseous – also aggressive – media.

The differential pressure switch uses an adjusting screw to enable the adjustment of the switching pressure.

Applications:

1. HVAC plant room pumps 
2. filter condition
3. flow monitoring
4. chiller
5. heat pump or AC unit
6. Air compressor

• Setting ranges:
  

   

  Type	Factory-set switching points between	Maximum operating pressure
  908.32	40 and 200 mbar	10 bar
  908.34	150 and 1000 mbar	10 bar

• Temperature range:
  Ambient temperature from -10 to +80°C
  Temperatrure of media from -10 to +80°C
  Storage temperature from -40 to +80°C
• Diaphragm material:
  EPDM / NBR / Viton / Silikon
• Pressure connection:
  Inner thread G 1/8 of brass
• Electrical rating:
  Standard version:
  max. 6 (1,5) A / 250 VAC
  max. 10 (2,0) A / 250 VAC
  Low power version:
  max. 100 mA / 24 VAC
  max. 30 mA / 24 VDC
• Electrical connection:
  flat plug 6.3 x 0.8 mm according to DIN 46244
• Protection class:
  IP54 / IP65 depending on the used protection cap. IP00 without protection cap.
• Arrangement of contacts:
  
  

Additional Information:

• Delivery Time: 4 to 5 weeks

The PS series mechanical differential pressure switches offer a cost effective solution for filter, fan and duct pressure monitoring in building automation systems in the HVAC/R industry. PS series products offer field selectable switching point adjustment.

Measurement range: PS200: 20-200 Pa

• PS300: 30-300 Pa
• PS500: 30-500 Pa
• PS600: 40-600 Pa
• PS1500: 100-1500 Pa
• PS4500: 500-4500 Pa

Additional Information:

• Delivery Time: Ready stock
• Packaging Details: OEM Box packing