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    Series AT2605 ATEX Approved 605 Differential Pressure

    ATEX Approved 605 Differential Pressure Indicating Transmitter
    Series 605 in Flame-Proof ATEX Enclosure

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    Series AT2605 ATEX Approved 605 Differential Pressure

    Series 605 in Flame-Proof ATEX Enclosure

    The ATEX approved SERIES AT2605 Indicating Transmitter provides for both visual monitoring and electronic control of very low differential pressure in hazardous locations. The easily read dial gage is complimented by the two-wire, 4 to 20 mA control signal utilizing the time-proven Dwyer® Magnehelic® gage mechanical design and Series 600 transmitter technology. The two-wire design simplifies any 4 to 20 mA control loop powered by a 10 to 35 VDC supply. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing process pressure on gage face. 

    Important notes for installation: 
    • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument). 
    • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve). 
    • 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 area.

    Please see SERIES 605 for non-ATEX approved.

    Product Applications

    • Monitor pressures in ducts, rooms, or total building pressures
    • Filter monitoring
    • Local indication of clean room pressures with process signal sent to control room
    • Hazardous area pressure measurement and transmitter
    More Information
    Model Chart
    EXAMPLE AT2605 00N X A B 1 X T2 Series AT2605-00N-X-AB1XT2 Magnehelic® Indicating Transmitter with ATEX enclosure, range 0-.05-0-0.20" w.c., aluminum housing, blind top cover, 1/8" npt female brass pressure port, standard plug without overpressure relief valve, stainless steel tag
    SERIES AT2605               Magnehelic® Indicating Transmitter with ATEX Enclosure
    RANGE  

    00N
    11
    0
    1
    2
    3
    6
    10
    20
    30
    50
    60PA
    125PA
    250PA
    500PA

    		            

    0.05-0-0.20" w.c.
    0.25-0-0.25" w.c.
    0-.50" w.c.
    0-1.0" w.c.
    0-2.0" w.c.
    0-3.0" w.c.
    0-6.0" w.c.
    0-10.0" w.c.
    0-20.0" w.c.
    0-30.0" w.c.
    0-50.0" w.c.
    0-60 Pa
    0-125Pa
    0-250Pa
    0-500Pa
    CONSTRUCTION     X           Standard Construction
    HOUSING MATERIAL       A         Aluminum
    COVER         B
    O    		       Blind Top Cover
    Glass Top Cover
    PRESSURE CONNECTION           1
    2    		     1/8" npt female Brass Pressure Port
    1/8" npt female Stainless Steel Port
    OVERPRESSURE PLUG            

    X
    OPV

    		   Standard without Overpressure Relief Valve
    Overpressure Relief Valve material same as port
    TAG               T2 Stainless Steel Tag
    GAGE SPECIFICATIONS
    Service: Air and non-combustible, compatible gases.
    Wetted Materials: Consult factory.
    Accuracy: See 605 ordering page.
    Pressure Limits: See 605 ordering page.
    Temperature Limits: 20 to 120°F (-6.67 to 48.9°C); Case: -76 to 140°F (-60 to 60°C) (Note: Product temperature limits differ from case).
    Size: 4" (101.6 mm) dial face.
    TRANSMITTER SPECIFICATIONS
    Accuracy: See 605 ordering page (includes linearity, hysteresis, repeatability).
    Compensated Temperature Range: 32 to 120°F (0 to 48.9°C).
    Thermal Effect: ±0.025% FS/°F (0.045% FS/°C).
    Stability: ±1% FS/year.
    Power Requirements: 10 to 35 VDC (2-wire).
    Output Signal: 4 to 20 mA.
    Zero and Span Adjustments: Protected potentiometers on 605 face. Can access those by opening case. Allowed only in safe zone.
    Loop Resistance: DC: 0 to 1250 Ω max.
    Current Consumption: DC: 38 mA max.
    Electrical Connections: Screw terminal block.
    Mounting Orientation: Diaphragm in vertical position.
    Enclosure Rating: IP66. IP65 with option OPV, overpressure relief valve.
    Housing Material: Aluminum.
    Finishing: Texture epoxy coat RAL7038.
    Pressure Connections: 1/8" NPT female brass (SS optional). In presence of acetylene it is necessary to use SS.
    Electrical Connections: Two 1/2" FNPT. Cable gland not included.
    Weight: 12.6 lb (5.7 kg).
    ATEX Approved Products from Comhas with ECN: BVI 14ATEX0072.
    Agency Approvals: CE 1370 II2 GD Ex d IIC Gb T6; -60°C ≤ Ta ≤ +60°C Ex tb IIIC Db T 85°C.
    • ATEX housing provides all the capabilities and value of the Magnehelic® 605 in a flame & explosion-proof enclosure
    • Quick response to pressure changes means no delay in assessing critical situations
    • Durable and rugged housing and high-quality components combined provides longservice life and minimized down-time
    • High impact strength and high temperature rated for applications where hazardous environments exist