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Differential pressure switch 911.82 factory-set

Differential pressure switch 911.82 factory-set

Product Details:

  • Seal Material NBR (Nitrile Rubber)
  • Display Analog
  • Sensor Type Diaphragm Sensor
  • Thread G1/4 or 1/4 NPT (as standard)
  • Grade Industrial Grade
  • Outer Size Approx. 140 mm x 70 mm x 65 mm
  • Material Die Cast Aluminium Housing
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Differential pressure switch 911.82 factory-set Product Specifications

  • ABS Plastic (not externally visible)
  • Aluminum
  • Powder Coated / Painted
  • Analog
  • NBR (Nitrile Rubber)
  • Panel or Surface Mount
  • 2% of full scale
  • Mounting screws, terminal covers
  • Diaphragm Sensor
  • G1/4 or 1/4 NPT (as standard)
  • Industrial Grade
  • Approx. 65 mm (Main body width)
  • Factory-set / Pre-calibrated
  • Die Cast Aluminium Housing
  • Approx. 140 mm x 70 mm x 65 mm
  • 0.5 to 8 bar (factory set point within this range)
  • Air, Gases, or Non-corrosive Liquids

Product Description

Applications :

  • Monitoring air filters and ventilators
  • Overheating protection for fan heaters
  • Monitoring flows in ventilation ducts
  • Frost protection for heat exchangers

 

Technical Data : 

  • Setting range:
    Factory-set switching points between Maximum operating pressure
    20 and 1.000 Pa 10 kPa

 

  • Temperature range:
    Ambient temperature from -20°C to +85°C
    Storage temperature from -40 to +80°C

 

  • Diaphragm material:
    Silicone, tempered at 200°C, free of gas emissions.
    Other materials available on request.

 

  • Pressure connection:
    2 plastic pipe connection pieces (P1 and P2), external diameter 6.0 mm.

 

  • Electrical rating:
    Standard version: max. 1,5 (0,4) A / 250 VAC
    Low voltage version: max. 0,1 A / 24 VDC

 

  • Electrical connection:
    Tab terminal 6.3 mm x 0.8 mm in accordance with DIN 46244 or push-on screw terminals.
    Cable conduit with cable strain relief.

 

  • Protection class:
    IP 54 with protection cap
    IP 00 without protection cap


Reliable Pressure Monitoring for Industrial Applications

Engineered for precision and durability, the 911.82 Differential Pressure Switch offers accurate control in environments where reliability is paramount. Its factory-set calibration guarantees consistent performance, while the SPDT switch enables flexible circuit integration. With high vibration resistance and rapid response, this switch is ideal for automated systems in manufacturing, HVAC, and process industries, ensuring safe and efficient operation.


Superior Construction & Safety Compliance

Featuring a die-cast aluminum housing with a powder-coated or painted finish, the switch excels in harsh conditions. The enclosure meets IP54 standards, and the device has obtained CE safety approval, making it suitable for international industrial use. Accessories like mounting screws and terminal covers support easy installation, and the unit supports panel or surface mounting for versatile deployment.

FAQ's of Differential pressure switch 911.82 factory-set:


Q: How is the set point adjusted on the Differential Pressure Switch 911.82?

A: The set point is factory-set according to customer specifications within the 0.5 to 8 bar scale range, ensuring accurate pre-calibration. On-site adjustment is not intended, providing reliability and consistency.

Q: What mediums can the 911.82 switch monitor?

A: This switch is compatible with air, neutral gases, and non-corrosive liquids, making it versatile for various industrial and HVAC applications.

Q: When is the differential pressure switch typically used?

A: It is employed for monitoring and controlling differential pressure in safety-sensitive and automation systems, such as process control, filtration monitoring, and airflow management in industrial settings.

Q: Where can the 911.82 switch be installed?

A: It supports both panel and surface mounting, allowing flexible installation in equipment panels or directly on machinery, making it suitable for a wide range of industrial environments.

Q: What process is followed to ensure the switch's accuracy and reliability?

A: Each unit is factory-set and pre-calibrated, with fixed hysteresis typically less than 15% of set point, and tested for 2% full-scale accuracy. CE marking and vibration resistance guarantee compliance and operational integrity.

Q: How does the enclosure protect the device in industrial conditions?

A: The die-cast aluminum housing, combined with powder coated or painted finish and an IP54 rating, shields the internal components from dust, moisture, and mechanical damage, ensuring longevity and stable performance.

Q: What benefits does the SPDT switch offer for electrical control?

A: The Single Pole Double Throw (SPDT) switch enables versatile circuit configurations, supporting both Normally Open and Normally Closed contacts, with robust contact ratings suitable for industrial currents and voltages.

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