Dwyer

AT2605 ATEX Approved 605 Differential Pressure

Visual monitoring and electronic control of very low differential pressure in hazardous locations, ATEX housing is flame & explosion proof

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AT2605 ATEX Approved 605 Differential Pressure 02378

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 - 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 - 20 mA control loop powered by a 10 - 35 VDC supply. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing process pressure on gage face.

Note that for installation, cables must be fitted through 1/2 in 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.  Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

• 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
 

GAGE SPECIFICATIONS
ServiceAir and non-combustible, compatible gases
Wetted MaterialsConsult factory
AccuracySee 605 ordering page
Pressure LimitsSee 605 ordering page
Temperature Limits20°F - 120°F (-6.67°C - 48.9°C);
Case: -76°F - 140°F (-60°C - 60°C)
Note: Product temperature limits differ from case
Size4" (101.6 mm) dial face
TRANSMITTER SPECIFICATIONS
AccuracySee 605 ordering page (includes linearity, hysteresis, repeatability)
Compensated Temperature Range32°F - 120°F (0°C - 48.9°C)
Thermal Effect± 0.025% FS/°F (0.045% FS/°C)
Stability± 1% FS/year
Power Requirements10 - 35 VDC (2-wire)
Output Signal4 - 20 mA
Zero and Span AdjustmentsProtected potentiometers on 605 face. Can access those by opening case. Allowed only in safe zone
Loop ResistanceDC: 0 Ω - 1250 Ω max
Current ConsumptionDC: 38 mA max
Electrical ConnectionsScrew terminal block
Mounting OrientationDiaphragm in vertical position
Enclosure RatingIP66. IP65 with option OPV, overpressure relief valve
Housing MaterialAluminum
FinishingTexture epoxy coat RAL7038
Pressure Connections1/8 in NPT female brass (SS optional). In presence of acetylene it is necessary to use SS
Electrical ConnectionsTwo 1/2 in FNPT. Cable gland not included
Weight12.6 lb (5.7 kg)
ATEX Approved Products from Comhas with ECNBVI 14ATEX0072
Agency ApprovalsCE 1370 II2 GD Ex d IIC Gb T6; -60°C ≤ Ta ≤ 60°C Ex tb IIIC Db T 85°C

• 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
 

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