DWYER Series AT-1800 Differential Pressure Switch

RM 0.00

SKU: AT-1800 Categories: , , , , , , Tags: , ,

Description

Series AT-1800 ATEX/IECEx Approved Low Differential Pressure Switch, The 1800 in Flameproof ATEX/IECEx Enclosure

 

Essential for industrial environments, the DWYER Series AT-1800 Differential Pressure Switch combines small size with 2% repeatability. Set point adjustment inside the switch allows for set point settings across 9 ranges from the low of .07 in w.c. to a maximum 85 in w.c. differential pressure. DWYER Series AT-1800 Differential Pressure Switch flameproof enclosures are available in aluminum and are ideal for low pressure hazardous area applications. Various housing options such as an over-pressure relief valve or external set point adjustment knob are available. External set point knob allows adjustment without opening the enclosure.

 

Important notes for installation:

  • Cables must be fitted through 1/2″ NPT cable gland or ATEX/IECEx conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to maintain IP66 rating.
  • 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 areas.

 

Product Applications

  • Hazardous area pressure switch
  • Process applications
  • Mechanical equipment control

 

Features

  • Compact size and repeatability provides a high-value switch for many industrial applications
  • External set point knob provides easy access that simplifies making adjustments without opening enclosure
  • Flameproof enclosure protects the device in hazardous areas
  • Increased response time at low pressures with LD port configuration

 

Specifications

  • Service: Air and non-combustible, compatible gases.
  • Wetted Materials: Consult factory.
  • Temperature Limits: -30 to 180°F (-34 to 82.2°C); 1823-00, -20 to 180°F (-28.9 to 82.2°C) (Note: Product temperature limits differ from case).
  • Pressure Limits: See pressure limit chart on the catalog page.
  • Switch Type: SPDT.
  • Repeatability: ±2% FS.
  • Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz. De-rate to 10 A for operation at high cycle rates.
  • Mounting Orientation: Diaphragm in vertical position.
  • Set Point Adjustment: Screw type inside mounting spud internal to switch. External set point adjustment knob optional.
  • Enclosure Rating: IP66.
  • Housing Material: Aluminum.
  • Finishing: Texture epoxy coat RAL7015.
  • Process Connections: 1/8″ NPT female brass (SS optional).
  • Electrical Connections: Two 1/2″ NPT female. Cable gland not included.
  • Weight: 10.5 lb (4.8 kg).
  • ATEX Certificate: INERIS 21ATEX0033X.
  • IECEx Certificate: IECEx INE 21.0064X.
  • ATEX Compliant: CE 0080 EX II 2G Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) II 2D Ex tb IIIC T75 °C Db;
  • IECEx Compliant: Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) Ex tb IIIC T75°C Db.

 

 

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