Dwyer Photohelic Gauge Pressure Switch, Series AT3A3000

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Series AT3A3000 ATEX/IECEx Approved Photohelic Switch/Gauge

Flame-proof ATEX/IECEx approved Series AT3A3000 Photohelic® Switch/Gauges, function as versatile, highly repeatable pressure switches combined with a precise pressure gauge employing the time-proven Magnehelic® gauge design.

The Photohelic® switch/ gauge measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 psig (2.4 bar) or 80 psig (5.5 bar). Two phototransistor actuated, DPDT relays are included for low/high limit control.

Easy to adjust set point indicators are controlled by knobs located on the gauge face (accessible opening case after de-energizing instrument). Set points can be interlocked to provide variable dead band– ideal for control of fans, dampers, etc.

Gauge reading is continuous and unaffected by switch operation, even during loss of electrical power.

Flame-proof enclosures are available in aluminum with glass window which allows for viewing of set point needles and process pressure.

Features

3-in-1 ATEX approved instrument allows the reduction of several instruments with one product, saving inventory, installation time and money
Flame-proof ATEX enclosure with optional glass window and aluminum housing protects the device in hazardous areas while giving local visibility to process pressure and set point status

Displaying prices & availability for Ohio, United States in CAD. Change location.

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Models matching criteria: 2,880

AT3A3000-0-240VAC-MPXX-AO1XT2

Pressure Range - Inches WC: 0 to 0.5
Input - 240 Vac
Pressure Application - Medium Pressure
Temperature Options - Standard Temperature
Cover - Glass Top Cover
Process Connection - 1/8” Female NPT Brass Port
Overpressure Plug - None Required

100+ In Stock

$108.00 CAD