Series AT-1800 ATEX/IECEx Approved Low Differential Pressure Switch

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.

Compliance:

ATEX: 0080 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: Ex db IIC T5, T6 Gb -60°C ≤Ta ≤+50°C (T6) -60°C ≤Ta ≤+60°C (T5) Ex tb IIIC T75°C Db.

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

Approvals

• ATEX QAN
• CE Approval, and Safety Note
• EU-Type Examination Certificate
• IECEx Certificate

Drawings

• VS0 (STD PORT/NO VALVE) .dwg
• VS0 (STD PORT/NO VALVE) .pdf
• VL0 (LD PORT/NO VALVE) .dwg
• VL0 (LD PORT/NO VALVE) .pdf
• VS1 (STD PORT/STD VALVE) .dwg
• VS1 (STD PORT/STD VALVE) .pdf
• VS2 (STD PORT/LD VALVE) .dwg
• VS2 (STD PORT/LD VALVE) .pdf
• VL1 (LD PORT/LD VALVE) .dwg
• VL1 (LD PORT/LD VALVE) .pdf

Model Chart

     SERIES AT-1800 SERIES PRESSURE SWITCH          
     
     AT-101NA-1823-X-XXXX  AT-1800 PR SW W/ ATEX ENCLOSURE
  
          1ST SYMBOL (1ST X) RANGE
             00    0.08 - 0.22 IN WC
             0     0.15 - 0.50 IN WC
             1     0.3 - 1.0 IN WC
             2     0.5 - 2.0 IN WC
             5     1.5 - 5.0 IN WC
             10    2.0 - 10.0 IN WC
             20    3.0 - 22.0 IN WC
             40    5.0 - 44.0 IN WC
             80    9.0 - 85.0 IN WC
  
          2ND SYMBOL (2ND X) COVER
             B     BLIND
  
          3RD SYMBOL (3RD X) PRESSURE PORT/VALVE MATERIAL
             1     BRASS
             2     STAINLESS STEEL
  
          4TH SYMBOL (4TH X) PRESSURE PORT/VENTING VALVE
             VS0   STD PRESSURE PORT 1/8” FEMALE NPT/NO VENTING VALVE
             VL0   LD PRESSURE PORT 1/8” FEMALE NPT/NO VENTING VALVE
             VS1   STD PRESSURE PORT 1/8” FEMALE NPT/STD VENTING VALVE
             VS2   STD PRESSURE PORT 1/8” FEMALE NPT/LD VENTING VALVE
             VL1   LD PRESSURE PORT 1/8” FEMALE NPT/LD VENTING VALVE

          4TH SYMBOL (4TH X) CABLE ENTRY
             12    1/2" NPT ANSI/ASME B1.20.1