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DWYER Photohelic AT-A3000

Photo DWYER Photohelic AT-A3000 Description DWYER Photohelic AT-A3000 Specifications DWYER Photohelic AT-A3000 User Manual for DWYER Photohelic AT-A3000 Related instruments to DWYER Photohelic AT-A3000

DWYER Photohelic AT-A3000 atex/iecex approved pressure switch & gage

DWYER Photohelic AT-A3000 atex/iecex approved pressure switch & gage

Flameproof approved Series AT-A3000 ATEX/IECEx Approved Photohelic® Pressure Switch/Gage functions as versatile, highly repeatable pressure switch combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Two photo-transistor actuated, DPDT relays are included for low/high limit control. Easy-to-adjust set point indicators are controlled by knobs located on the gage face (accessible opening case after de-energizing instrument). Set points can be interlocked to provide variable dead band which is ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Flameproof enclosures are available in aluminum with a glass window which allows for viewing of set point needles and process pressure.

			

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Made in USA. brand DWYER, model Photohelic AT-A3000

International delivery to Europe, Asia and Africa.
Our warehouses are located in the UK, UAE and Senegal.

price by request

Available

Available

Founded in 1931, DWYER manufactures equipment for measurement, conversion and control – pressure, temperature, level, flow.

Advantages

Only the best I&C brands

Our company is a global supplier of control and measuring instruments from well-known world brands

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Discounts for organisations

We sell high-tech equipment at very low prices. We provide really advantageous conditions for partners

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Fast delivery across the Europe & Asia

We take care of all logistics and customs clearance of I&C solutions from Europe, USA, China and India

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Professional advice on device selection

Our specialists are ready to advise you on any technical question. We can find an analogue of any device

Description of DWYER Photohelic AT-A3000

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 measurement and transmitter
  • Air conditioning systems
  • Clean rooms
  • Fume exhaust systems

FEATURES

  • Saves inventory, installation time, and money by consolidating several instruments into one ATEX/IECEx approved product
  • Flameproof 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

Technical specifications of DWYER Photohelic AT-A3000

  • Service: Air and non-combustible, compatible gases.
  • Wetted Materials: Consult factory.
  • Housing material: Aluminum.
  • Finishing: Texture epoxy coat RAL7015.
  • Accuracy: ±2% of FS at 70°F (21.1°C); ±3% on -0 and ±4% on -00 models.
  • Pressure Limits: See pressure limit chart on catalog page.
  • Temperature Limits: 20 to 120°F (-6.67 to 48.9°C) LT low temperature option to -20°F available (Note: Product temperature limits differ from case).
  • Dial Size: 4″ (101.6 mm).
  • Mounting Orientation: Diaphragm in vertical position.
  • Set Point Adjustment: Adjustable knobs on Photohelic® gage face behind enclosure cover. Follow instructions and safety warnings to open cover.

SWITCH SPECIFICATIONS

  • Switch Type: Each set point has 2 form C relays (DPDT).
  • Repeatability: ±1% of FS.
  • Electrical Rating: 10 A @ 28 VDC, 10 A @ 120, 240 VAC.
  • Electrical Wiring: Screw terminals.
  • Power Requirements: 120 VAC, 50/60 Hz; 240 VAC and 24 VAC power optional.
  • Enclosure Rating: IP66 (IP65 for versions VS1, VS2, VL1).
  • Process Connections: 1/8″ NPT female brass (SS optional).
  • Electrical Connections: Two 1/2″ NPT female. Cable gland not included.
  • Weight: 19.8 lb (9 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.

User Guide and Instruction manual for DWYER Photohelic AT-A3000

You can request the necessary certificates, documentation, instructions and user manuals for DWYER Photohelic AT-A3000 using the special form.

You can buy DWYER Photohelic AT-A3000 in UK or Europe at a favourable price in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email . DWYER Photohelic AT-A3000 price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.

See also: Pressure Gauges