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Dwyer-Compact Low Differential Pressure Switches-1900iDwyer-Dual-Action Explosion-Proof Pressure Switches-A1ni

Dwyer-Diaphragm Pressure Switches

( Dwyer )

General:

Extremely rugged construction provides excellent reliability in chemical, petroleum

and industrial plants. Bellville spring movement permits mounting of control

in any position and helps prevent contact chatter. New design also provides high

over-pressure protection. Weatherproof housing is standard.

Specifications: Series 1000W

Temperature Limits

-30 to 170°F (-35 to 77°C).

Pressure Limit:

3000 psig (206.8 bar).

Enclosure Rating:

Weatherproof, NEMA 4X.

Switch Type

SPDT snap switch. DPDT optional

Electrical Rating

15A @ 125/250 VAC resistive.

Electrical Connections

Screw type.

Conduit Connection

3/4˝ female NPT.

Process Connection

1/4˝ female NPT.

Mounting Orientation

Any position

Set Point Adjustment

Internal thumbwheel.

Weight

3 lb (1.4 kg).

Specifications: Series 1000E

Temperature Limits

-30 to 170°F (-35 to 77°C).

Pressure Limit:

3000 psig (206.8 bar).

Enclosure Rating:

Explosion-proof, UL listed for Class I, Groups A, B, C and D; Class II, Groups E, F, and G.

Switch Type

SPDT snap switch. DPDT or hermetically sealed optional.

Electrical Rating

15A @ 125/250/480 VAC res., 0.5A @ 125 VDC, 0.25A @ 250 VDC.

Electrical Connections

18 AWG, 18˝ (460 mm) long.

Conduit Connection

3/4˝ female NPT.

Process Connection

1/4˝ female NPT.

Mounting Orientation

Any position

Set Point Adjustment

Internal thumbwheel.

Weight

3 lb (1.4 kg).