Dwyer MS 331 Magnesense Differential Pressure Transmitter

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Dwyer MS 331 Magnesense Differential Pressure Transmitter

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MOQ : 5 Pieces

Dwyer MS 331 Magnesense Differential Pressure Transmitter Specification

Thread
Barbed for 1/4 OD Tubing

Seal Material
Silicone

Outer Size
Approx. 98 mm x 82 mm x 36 mm

Display
LCD Digital Display

Sensor Type
Capacitive Differential Pressure Sensor

Grade
Industrial Grade

Material
Plastic (PC/ABS)

Processing Type
Electronic Measurement

Diameter
Approx. 98 mm (Case Diameter)

Mount Type
Wall or Surface Mount

Scale Range
0 - 250 Pa (various selectable ranges available)

Accuracy
±1% of FS

Accessories
Mounting Screws, Instruction Manual

Operating Temperature Range
0 to 60C

Electrical Connection
Screw Terminal Block

Mounting Orientation
Any orientation

Output Signal
4-20 mA (2-wire)

Response Time
Instantaneous (<1s)

Pressure Overload
Up to 10x Full Span (FS)

Storage Temperature Range
-20 to 70C

Ingress Protection Rating
IP65

Power Supply
10 to 35 VDC

Zero/Span Adjustment
Button-Accessible

Weight
About 150 g

Dwyer MS 331 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
5 Pieces

Payment Terms
Cash on Delivery (COD), Cash Advance (CA), Cash in Advance (CID), Cash Against Delivery (CAD)

Main Export Market(s)
Middle East, Asia

Main Domestic Market
All India

About Dwyer MS 331 Magnesense Differential Pressure Transmitter

Dwyer Instruments MS-331

Magnesense Differential Press. Trans., 0-10 V, range 10 in H2O

The Series MS Magnesense Differential Pressure Transmitter is an extremely versatile transmitter for monitoring pressure and air velocity. This compact package is loaded with features such as: field selectable English or metric ranges, field upgradeable LCD display, adjustable dampening of output signal (with optional display) 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. Field Upgradeable LCD. No need to order two separate transmitters. Simply stock a transmitter and display and you can satisfy any customer's requests. Simply remove cover and snap the LCD onto the board. Field Selectable Ranges in metric or English. Lowers stock and inventory requirements. You'll always have the right transmitter for every job. Digital Push Button Zero and Span. Reduces calibration time significantly over other transmitters that utilize potentiometers. Lowers maintenance time and costs. 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.

Product Highlights

0-10 V output

selectable range 10 in H2O. (2 kPa)

panel mount

Versatile Differential Pressure Monitoring

The MS 331s capacitive differential pressure sensor technology ensures consistent performance, even in demanding industrial or HVAC scenarios. Its instantaneous response time (<1s) and high overload protection (up to 10 times full span) make it suitable for dynamic air handling and filtration system monitoring.

Flexible Installation and User-Friendly Design

Thanks to its compact form (approx. 98 mm diameter), wall or surface mount capability, and support for any orientation, the MS 331 integrates effortlessly into existing systems. The LCD display, barbed connections for 1/4 OD tubing, and intuitive button-accessible adjustments streamline both setup and ongoing operation.

Rugged Construction and Wide Operating Range

Constructed from molded PC/ABS plastic and sealed with silicone, the MS 331 is built to endure field conditions (IP65 ingress protection). It operates effectively between 0 to 60C and is ready for storage in more extreme climates, ranging from -20 to 70Cproviding years of reliable service in industrial environments.

FAQs of Dwyer MS 331 Magnesense Differential Pressure Transmitter:

Q: How is the Dwyer MS 331 Magnesense Differential Pressure Transmitter installed?

A: The transmitter can be mounted on a wall or surface using the included mounting screws. Thanks to its compact design and barbed connections for 1/4 OD tubing, installation is straightforward, and the unit can be oriented in any direction to fit existing layouts.

Q: What types of pressures and gases can the MS 331 measure?

A: This model is designed for measuring differential pressure of air and compatible non-corrosive gases within a selectable range, such as 0250 Pa, with an accuracy of 1% of the full span.

Q: When should zero and span adjustments be performed?

A: Zero and span adjustmentsaccessible via front-panel buttonsare typically completed during initial calibration or after maintenance to ensure maximum measurement accuracy. Its good practice to check these if the installation environment changes significantly.

Q: Where can the MS 331 transmitter be used?

A: With its IP65-rated rugged housing and wide operating temperature range (060C), the MS 331 is ideal for industrial-grade environments, including HVAC systems, clean rooms, filter monitoring, and various process control applications across India and globally.

Q: What are the main benefits of using this pressure transmitter?

A: Key benefits include rapid, precise pressure monitoring, high overload resistance, flexible installation, and long-term durability. The LCD display and 420 mA output make integration and ongoing monitoring efficient for the end user.

Q: How is the output signal connected to a control system?

A: The MS 331 provides a standard 420 mA (2-wire) output via a screw terminal block, permitting seamless integration with most industrial control, data logging, or automation equipment.

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