Dwyer Magnesense MS-111 Micro Differential Pressure Transmitter Product Introduction The Dwyer Magnesense MS-111 is a versatile micro differential
pressure transmitter designed for precise monitoring of pressure
and air velocity in industrial and commercial systems. Leveraging
patented magnetic sensing technology, this compact device combines
field-configurable functionality with rugged durability, making it
ideal for building automation, HVAC, and process control
applications. Product Features - High Accuracy: ±1% full-scale (FS) for 2"–5" w.c. ranges; ±2% FS
for 1" w.c. (250 Pa) at standard conditions.
- Flexible Output: 4–20 mA (2-wire) signal for seamless integration
with control systems, supporting up to 1250 Ω loop resistance.
- Field Configurability: Selectable English (in. w.c.) or metric (Pa)
units, with adjustable damping (0.5–15 sec.) for noise reduction.
- Square Root Output: Enables direct flow calculation when used with
Pitot tubes or orifice plates.
- Rugged Enclosure: NEMA 4X (IP66) rating for protection against
dust, water, and harsh environments.
Technical Specifications | Parameter | Detail | | Model | MS-111 | | Pressure Range | Selectable: 1", 2", 5" w.c. (250, 500, 1250 Pa) | | Media | Air and non-combustible gases | | Power Supply | 10–35 VDC (2-wire); 17–36 VDC / 21.6–33 VAC (3-wire) | | Temperature Range | -18–66°C (-4–150°F) | | Pressure Limits | 1 psi (operating); 10 psi (burst) | | Response Time | 300 ms (95% response with adjustable damping) | | Connections | 3/16" ID tubing (pressure); 1/2" NPT electrical entry with cable
gland | | Mounting | Vertical orientation with diaphragm in vertical position | | Weight | 230 g (8.1 oz) | | Certifications | CE compliant |
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