Dwyer Differential Pressure Transmitter Magnesense MS-111 MS-021 Series Digital differential pressure transmitter

Functional Specifications

• Service: Air and non-combustible compatible gases
• Stability: ±1% F.S./year
• Temperature Limits: 0 to 150°F (-18 to 66°C)
• Pressure Limits: 1 psi maximum, operation; 10 psi, burst
• 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
• Loop Resistance: Current Output: 0-1250 max. Voltage Output: min. load resistance 1 k
• Current Consumption: 40 mA max
• Display (optional): 4 digit LCD
• Electrical Entry: 1/2" NPS Thread. Accessory: Cable Gland for 5 to 10 mm diameter cable
• Process Connection: 3/16" (5 mm) ID tubing. Maximum OD 9 mm
• Enclosure Rating: NEMA 4X (IP66)
• Mounting Orientation: Diaphragm in vertical position

PRODUCT APPLICATIONS

• Building pressure monitoring
• Duct pressure monitoring
• Fan velocity measurement
• Zone differential pressure monitoring
• Filter condition monitoring

Product Parameter

General Specifications

• Power Requirements: 10 to 35 VDC (2-wire)
• 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire)
• Weight: 8.0 oz (230 g)

Magnesense must be installed on a plane that is perpendicular to the horizontal plane. The pressure connection hole and wire connection pipe must be oriented downward. Fix it stably on the plane with three screws, not too tight. If you choose other installation Angle, will cause a large loss of accuracy.

• Adjustable Digital Dampening smooths out unstable pressure fluctuations common in air flow applications.

• Field Selectable Air Velocity Mode for fan and blower applications. Unit provides square root output that accurately tracks fpm or m/s flow rate. No need for a smart programmable indicator or PLC to convert pressure to air flow. Reduces components and installation time lowering overall costs.

MS-111-LCD

Differential pressure transmitter, 4-20 mA output, selectable range 1", 2", 5" w.c. (250, 500, 1250 Pa), wall mount, with LCD.

MS-121-LCD

Differential pressure transmitter, 4-20 mA output, selectable range 0.1", 0.25", 0.5" w.c. (25, 50, 100 Pa), wall mount, with LCD.

MS-021-LCD MS-122-LCD MS-131-LCD MS-141-LCD MS-151-LCD