Series MS in Flame-Proof ATEX Enclosure

The ATEX 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 ATEX 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 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 MS 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	AT2MS	1	1	1	LCD	A	B	1	X	T2	Series AT2MS-1-11-LCD-AB1XT2 Magnesense® Pressure Transmitter with ATEX 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							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 ports
TAG										T2	Stainless Steel Tag

Specifications

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); Case: -76 to 140°F (-60 to 60°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 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.

Features

ATEX housing provides all the capabilities and value of the MS2 in a flame & explosion proof enclosure
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
BACnet® or Modbus® serial communications reduce wiring cost by daisy-chaining the transmitters

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Series AT2MS ATEX Approved Magnesense® Differential Pressure Transmitter

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