Dwyer MS 121 Magnesense Differential Pressure Transmitter

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MOQ : 5 Pieces

Dwyer MS 121 Magnesense Differential Pressure Transmitter Specification

Sensor Type
Differential Pressure Transmitter

Display
Digital LCD (optional, model-dependent)

Grade
Industrial

Thread
1/8 NPT Female

Seal Material
Silicone

Outer Size
Approx. 90 mm x 102 mm x 36 mm

Material
Polycarbonate housing

Processing Type
Electronic

Diameter
Not Applicable (rectangular enclosure)

Mount Type
Wall Mount

Scale Range
0-125 Pa (model MS-121); other ranges available

Accuracy
1% of FS at 21C

Finishing
Polycarbonate enclosure (white-grey)

Measure Pressure Of
Air and non-combustible, compatible gases

Accessories
Mounting screws, installation manual

Dwyer MS 121 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
5 Pieces

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

Sample Available
Yes

Main Export Market(s)
Middle East, Asia

Main Domestic Market
Dadra and Nagar Haveli, Chandigarh, Himachal Pradesh, Tripura, Andaman and Nicobar Islands, Uttarakhand, South India, North India, East India, Andhra Pradesh, Assam, Arunachal Pradesh, Bihar, Delhi, Nagaland, Gujarat, Goa, Haryana, Jammu and Kashmir, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Mizoram, Meghalaya, Manipur, Odisha, Punjab, Pondicherry, Rajasthan, Sikkim, Tamil Nadu, Telangana, Uttar Pradesh, West Bengal, Daman and Diu, Lakshadweep, Central India, West India, Chhattisgarh, 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

Compact and Robust Design

The MS 121 is engineered for industrial environments, featuring a durable polycarbonate enclosure graded to IP66 (NEMA 4X) standards for protection against dust and water ingress. This ensures longevity even in challenging conditions, making it suitable for both indoor and outdoor installations. Its light weight and streamlined form simplify wall mounting and integration into existing systems.

Flexible Output and Easy Adjustment

This transmitter offers selectable output signals (4-20 mA or 0-10 VDC), allowing users to match the transmitter to their system requirements. With push-button zero and span adjustments, field calibration is enabled without hassle. The screw terminal block ensures secure and straightforward electrical connections for both professionals and maintenance staff.

High Accuracy and Fast Response

With 1% of full scale accuracy at 21C and a response time under 500 ms, the MS 121 delivers reliable and swift pressure readings. This high precision ensures that processes dependent on accurate pressure measurement, such as air filter monitoring and cleanroom control, operate safely and efficiently.

FAQs of Dwyer MS 121 Magnesense Differential Pressure Transmitter:

Q: How do I install the Dwyer MS 121 Magnesense Differential Pressure Transmitter?

A: Installation is straightforward: mount the transmitter on a wall using the supplied screws, connect the pressure ports with compatible tubing to the process, and wire the screw terminal block according to the included manual. The enclosures compact design and 1/8 NPT female threads facilitate system integration.

Q: What media can the MS 121 transmitter measure pressure of?

A: The MS 121 is designed to measure the differential pressure of air and non-combustible, compatible gases. It is unsuitable for liquids or corrosive gases that may damage the internal silicone seal or polycarbonate housing.

Q: When should I use the zero and span push-button adjustment function?

A: You should use the push-button zero and span adjustment during initial setup, system calibration, or whenever you require recalibration to ensure ongoing measurement accuracy, particularly after installation or maintenance.

Q: Where can this transmitter be used?

A: The unit is suitable for HVAC systems, cleanrooms, laboratories, filter monitoring, and duct static pressure measurement in industrial, commercial, and institutional settings. Its robust IP66 housing allows installation in environments exposed to dust or splashing water.

Q: What are the key benefits of using the Dwyer MS 121?

A: Key benefits include high measurement accuracy (1% FS), rapid response time (<500 ms), flexible output signals to suit various control systems, and user-friendly calibration options, resulting in minimal maintenance and reliable process control.

Q: How do I select the correct output signal for my application?

A: The MS 121 provides selectable output between 4-20 mA and 0-10 VDC. You can field-select the output signal based on your controller or data acquisition equipments requirements, ensuring compatibility with your existing infrastructure.

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