Dwyer MS 121 Magnesense Differential Pressure Transmitter

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MOQ : 12 Pieces

Dwyer MS 121 Magnesense Differential Pressure Transmitter Specification

Grade
Industrial

Display
LCD Digital

Seal Material
Silicone

Thread
1/8 NPT Female Pressure Connections

Outer Size
Housing diameter: 3.94 (100 mm)

Sensor Type
Differential Pressure Transmitter

Material
ABS plastic housing

Processing Type
Electronic sensor, solid-state

Diameter
100 mm (4) housing diameter

Mount Type
Wall or duct mount

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

Accuracy
1% of Full Scale

Finishing
Matte, corrosion-resistant finish

Measure Pressure Of
Air and compatible gases

Accessories
Mounting screws, Instruction Manual

Dwyer MS 121 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
12 Pieces

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

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

Main Domestic Market
All India

About Dwyer MS 121 Magnesense Differential Pressure Transmitter

Dwyer Instruments MS-121-LCD

Differential Pressure Xmitter 0.5"H2O,Panel Mount,LCD

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

4-20 mA output

selectable range 0.1", 0.25"

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

panel mount

with LCD

Reliable Differential Pressure Measurement

The Dwyer MS 121 transmitter provides highly accurate measurement of differential pressure in air and compatible gases, supporting a scale range up to 250 Pa. Its advanced electronic, solid-state sensor ensures consistent results and exceptional long-term stability, making it ideal for HVAC, clean rooms, and process industries.

Flexible Installation and Easy Configuration

Designed for hassle-free installation, the MS 121 supports mounting in any orientationwall or duct. User setup is simplified with push-button zero and span adjustments, while the screw terminal block allows straightforward electrical connections. Jumper selection lets users choose between 4-20 mA and 0-10 VDC outputs for seamless integration.

Robust, Industrial-Grade Construction

Built with a durable ABS plastic housing, silicone seals, and a corrosion-resistant matte finish, this pressure transmitter is engineered for tough environments. With an IP65 enclosure and an operating temperature range from -20C to 70C, it withstands challenging industrial conditions while maintaining accuracy and reliability.

FAQs of Dwyer MS 121 Magnesense Differential Pressure Transmitter:

Q: How do I select between the 4-20 mA and 0-10 VDC output signals on the MS 121?

A: You can choose between 4-20 mA and 0-10 VDC outputs using a jumper inside the device. Follow the instructions in the included manual to set your preferred signal for compatibility with your control system.

Q: What gases can the Dwyer MS 121 measure differential pressure for?

A: The MS 121 is designed for monitoring air and other compatible gases. It should not be used with corrosive or explosive gases that could damage the sensor or compromise safety.

Q: Where can I install the Magnesense MS 121 transmitter in my facility?

A: This transmitter can be installed in any orientation on walls or ducts, giving flexibility for placement in HVAC systems, clean rooms, or process environments. The compact housing and included mounting screws aid straightforward setup.

Q: What is the process for zero and span adjustment on this device?

A: Zero and span can be easily adjusted using dedicated push-buttons located on the transmitter. This simplifies periodic calibration to maintain measurement accuracy over time.

Q: What benefits does the LCD digital display provide?

A: The integrated LCD display displays real-time differential pressure readings, making on-site monitoring and troubleshooting more convenient for technicians and operators.

Q: How stable and accurate are the measurements of the MS 121 over time?

A: The transmitter offers long-term stability better than 0.5% of full scale and maintains an accuracy of 1% F.S., ensuring reliable performance for prolonged periods in industrial applications.

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