DWYER 防爆差压变送器 AT2MS系列

Series AT2MS ATEX/IECEx Approved Magnesense® Differential Pressure Transmitter

The ATEX/IECEx Approved Series AT2MS Magnesense® Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity in hazardous areas. This transmitter is loaded with features such as: field selectable English or metric ranges, field upgradeable LCD display, adjustable dampening of output signal and the ability to select a square root output for use with pitot tubes and other similar flow sensors. Along with these features, the magnetic sensing technology provides exceptional long term performance and enables the Magnesense® transmitter to be the solution for a myriad of pressure and flow applications. Flame-proof enclosures are available in aluminum and can include a glass window for viewing process on the LCD. 

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 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.

Service:Air and non-combustible, compatible gases.

Wetted Materials:Consult factory.

Accuracy:MS-X21: 0.5 in w.c. & 0.25 in w.c.: ±1%; 0.1 in w.c.: ±2%; 100 Pa & 50 Pa: ±1%; 25 Pa: ±2%. MS-X11: 5 in w.c. & 2 in w.c.: ±1%; 1 in w.c.: ±2%; 1250 Pa & 500 Pa: ±1%; 250 Pa: ±2% (@ standard conditions).

Stability:±1% FS/year.

Temperature Limits:0 to 150°F (-18 to 66°C); (Note:
Product temperature limits differ from case).

Pressure Limits:1 psi maximum, operation; 10 psi, burst.

Power Requirements:10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire).

Output Signals:4 to 20 mA (2-wire); 0 to 5 V, 0 to 10 V (3-wire).

Response Time:Field adjustable 0.5 to 15 sec. time constant. Provides a 95% response time of 1.5 to 45 seconds.

Zero & Span Adjustments:Digital push button. In safe zone only.

Loop Resistance:Current output: 0 to 1250 ohm max.; Voltage output: min. load resistance 1 k ohm.

Current Consumption:40 mA max. Display: 4 digit LCD.

Display:4 digit LCD.

Electrical Wiring:4 to 20 mA, 2-wire: European style terminal block for 16 to 26 AWG. 0 to 10 V, 3-wire: European style terminal block 16 to 22 AWG.

Mounting Orientation:Diaphragm in vertical position.

Enclosure Rating:4X 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:11 lb (5 kg).

ATEX Certificate:BVI 14ATEX0072.

Agency Approvals:ATEX Compliant CE 1370 Ex II 2G Ex d IIC T6 Gb / II 2D Ex tb IIIC T85°C Db, -60°C=Tamb=+60°C IECEx Compliant: Ex d IIC T6 Gb / Ex tb IIIC T85°C Db

Model Chart