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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
| EXAMPLE | AT2MS | 1 | 1 | 1 | LCD | A | B | 1 | X | T2 | Series AT2MS-1-11-LCD-AB1XT2 Magnesense® Pressure Transmitter with ATEX/IECEx Enclosure, positive only unit, 4-20mA, high range 1, 2, 5" w.c. & 250, 500, 1250 Pa, wall mount, Liquid Crystal Display, Aluminum housing, Blind Top Cover, Standard Plug without Overpressure Relief Valve, Stainless Steel Tag |
| SERIES | AT2MS | Magnesense® Differential Pressure Transmitter | |||||||||
| OUTPUT | 0 1 2 3 6 7 8 9 | Bidirectional Unit, 4-20 mA Positive Only Unit, 4-20 mA Bidirectional Unit, 0-10 V Positive Only Unit, 0-10 V Bidirectional Unit, 0-5 V Positive Only Unit, 0-5 V Bidirectional Unit, 0-5 V Output 0-12VDC Input Positive Only Unit, 0-5V Output 0-12 VDC Input | |||||||||
| PRESSURE RANGE | 1 2 3 4 5 | High Range 1, 2, 5" w.c. & 250, 500, 1250 Pa Low Range 0.1, 0.25, 0.5" w.c. & 25, 50, 100 Pa Piezo 10" w.c. & 2 kPa Piezo 15" w.c. & 3 kPa Piezo 25" w.c. & 5 kPa | |||||||||
| MOUNTING | 1 | Wall Mount | |||||||||
| DISPLAY | LCD | Liquid Crystal Display | |||||||||
| HOUSING MATERIAL | A | Aluminum | |||||||||
| COVER | O | 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 ports | |||||||||
| TAG | T2 | Stainless Steel Tag |
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