Dwyer MS 221 Magnesense Differential Pressure Transmitter

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MOQ : 12 Pieces

Dwyer MS 221 Magnesense Differential Pressure Transmitter Specification

Outer Size
Height: 82 mm; Width: 81 mm; Depth: 37 mm

Thread
1/8 NPT Female

Display
No Local Display

Seal Material
Silicone

Grade
Industrial Grade

Sensor Type
Differential Pressure Sensor

Material
Polycarbonate Plastic Housing

Processing Type
Electronic Sensing

Diameter
Not Applicable (Rectangular Case)

Mount Type
Wall Mount

Scale Range
0 to 250 Pa (Model: MS-221) and other selectable ranges

Accuracy
1% of Full Scale

Finishing
Injection Molded Housing

Measure Pressure Of
Air and Non-aggressive Gases

Accessories
Mounting Bracket, Installation Screws, Instruction Manual

Dwyer MS 221 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
12 Pieces

Payment Terms
Cash on Delivery (COD), Letter of Credit (L/C), Paypal, Western Union, Letter of Credit at Sight (Sight L/C), Delivery Point (DP), Cash Against Delivery (CAD), Telegraphic Transfer (T/T), Days after Acceptance (DA), Cash in Advance (CID), Cheque, Cash Advance (CA)

Main Export Market(s)
Middle East, Western Europe, Africa, Central America, Eastern Europe, South America, Asia, North America, Australia

Main Domestic Market
All India

About Dwyer MS 221 Magnesense Differential Pressure Transmitter

Dwyer Instruments MS-221

Differential Pressure Xmitter 0.5"H2O,+/-0.0,0.25

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

Field-Selectable Output for Versatile Applications

With switchable 4-20 mA or 0-10 VDC signal outputs, the MS 221 adapts seamlessly to diverse system requirements. Its adjustable response time and pushbutton calibration ensure accuracy and customizability, making it ideal for industrial ventilation, filter monitoring, or duct pressure measurement. Its electronic sensing design delivers reliable performance for demanding air-handling units and BMS integration.

Rugged Construction Meets Stringent Environments

Encased in an IP65-rated, injection-molded polycarbonate housing, the MS 221 withstands dust, moisture, and harsh weather, suitable for both indoor and outdoor applications. With a wide operating temperature range from -20C to 70C and silicone sealing, it guarantees long-term durability even in challenging conditions.

FAQs of Dwyer MS 221 Magnesense Differential Pressure Transmitter:

Q: How is the Dwyer MS 221 differential pressure transmitter installed?

A: The transmitter is designed for wall mounting using the included bracket and installation screws. Connect the 1/4" (6 mm) ID tubing to the plastic barbed pressure ports, and use the screw terminals for electrical wiring. Detailed steps are outlined in the provided instruction manual.

Q: What are the primary applications for this pressure transmitter?

A: It is primarily used for measuring differential pressure of air and compatible gases in HVAC systems, clean rooms, ductwork, filter monitoring, and building automation, thanks to its accurate sensing range and industrial-grade design.

Q: When should I perform zero and span adjustments?

A: Zero and span adjustments should be performed after installation and during periodic maintenance to ensure measurement accuracy. The pushbutton digital calibration feature makes this process quick and user-friendly.

Q: Where can the Dwyer MS 221 be used in terms of environmental conditions?

A: Its IP65 (NEMA 4X) rating and wide temperature tolerance (-20C to 70C) allow it to function reliably indoors or outdoors, even in dusty or damp environments.

Q: What media is compatible with the MS 221 Magnesense transmitter?

A: The device is suitable for use with air and other non-aggressive, compatible gases only. It is not intended for measuring liquids or corrosive gases.

Q: How does the adjustable response time benefit users?

A: The user can set how quickly the device reacts to pressure changes (between 4 and 60 seconds), helping tailor the sensors behavior to specific application needs and minimizing unwanted signal fluctuations.

Q: What are the main benefits of using the MS 221 in industrial settings?

A: Users benefit from accurate, reliable pressure readings, ease of installation, robust protection, and seamless integration with monitoring systems, making it ideal for maintaining optimal performance and safety in critical environments.

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