Dwyer MS 321 Magnesense Differential Pressure Transmitter

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Dwyer MS 321 Magnesense Differential Pressure Transmitter

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MOQ : 5 Pieces

Dwyer MS 321 Magnesense Differential Pressure Transmitter Specification

Thread
1/8 NPT Female

Display
No display (Analog output only)

Outer Size
Approx. 85 mm x 81 mm x 42 mm (3.34 x 3.19 x 1.65)

Seal Material
Rubber gasket

Sensor Type
Differential Pressure Transmitter

Grade
Industrial

Material
Polycarbonate enclosure

Processing Type
Standard

Diameter
Not applicable (rectangular housing)

Mount Type
Wall mounting

Scale Range
0-250 Pa (model-specific; multiple range options available)

Accuracy
1% full scale

Accessories
Mounting screws, installation manual

Weight
150g

Media Compatibility
Air and compatible gases

Overpressure Limit
15 psi

Response Time
< 1 second

Operating Temperature Range
0C to 60C (32F to 140F)

Model
MS-321

Output Signal
4-20 mA, 2-wire

Power Supply
10-35 VDC

Electrical Connection
Terminal block

Zero & Span Adjustment
Push-button

Protection Rating
IP66 / NEMA 4X

Application
HVAC, clean rooms, duct static pressure, filter monitoring

Dwyer MS 321 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 321 Magnesense Differential Pressure Transmitter

Dwyer Instruments MS-321

Differential Pressure Transmitt er, 0-10V, Panel Mount

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 0.1, 0.25, 0.5 in H2O. (25, 50, 100 Pa)

panel mount

Versatile, Reliable Performance

Built for industrial use, the MS 321 Magnesense Differential Pressure Transmitter provides dependable, long-term measurement of differential pressure. It accommodates a range of pressure scales up to 250 Pa, and excels in environments where precision and safety are critical, such as hospitals, laboratories, and HVAC automation projects.

User-Friendly Adjustments

Featuring push-button zero and span adjustments, the transmitter allows for convenient calibration and setup, reducing downtime. Its analog 4-20 mA output provides compatibility with most control systems, making integration seamless for engineers and technicians.

Durability Meets Safety

Housed in a tough polycarbonate enclosure and equipped with a rubber gasket seal, the MS 321 resists dust, water, and tough industrial conditions (IP66/NEMA 4X). Its compact, wall-mount design and standard 1/8 NPT female thread facilitate secure, flexible installations.

FAQs of Dwyer MS 321 Magnesense Differential Pressure Transmitter:

Q: How is the Dwyer MS 321 transmitter installed for optimal performance?

A: The transmitter should be wall-mounted using the provided screws, ensuring it is securely fastened and oriented properly. Connect the terminal block for electrical wiring, and use 1/8 NPT female ports for pneumatic connections to measure air or compatible gases.

Q: What applications are best suited for the Dwyer MS 321 Magnesense Differential Pressure Transmitter?

A: This transmitter is ideal for HVAC systems, clean rooms, duct static pressure, and filter monitoring where accurate, reliable differential pressure measurements of air or compatible gases are necessary.

Q: When do I need to perform zero and span adjustments on this pressure transmitter?

A: Zero and span adjustments should be performed during installation, system commissioning, or routine maintenance to maintain measurement accuracy, especially if the operating environment changes or the transmitter is moved.

Q: Where can this transmitter be safely used, considering its protection rating?

A: With an IP66/NEMA 4X rating, the device is well-suited for both indoor and outdoor locations prone to dust, moisture, or splashing water, making it suitable for challenging industrial and HVAC environments.

Q: What benefits does the analog 4-20 mA output provide in process control?

A: The 4-20 mA output ensures stable, interference-resistant signal transmission over long distances and easy integration with standard PLCs and building automation systems, enhancing process control reliability.

Q: How do I ensure media compatibility with the Dwyer MS 321?

A: Only use the device for air and non-combustible, compatible gases as specified. For other gases or corrosive media, consult the manufacturer or supplier for advice on appropriate models or materials.

Q: What is the response time of the MS 321, and why is this important?

A: The transmitter has a response time of less than 1 second, enabling rapid detection and control of pressure changes, which is crucial for maintaining safe, consistent conditions in sensitive environments.

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