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Magnesense® Differential Pressure Transmitter

Series AT2MS

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. 

  • 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: -58 to 140°F (-50 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: NEMKO 10ATEX1096
  • Agency Approvals: CE 0470 II2 GD Ex d IIC Gb T6; -50°C ? Ta ? +60°C Ex tb IIIC Db T 85°C




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