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Dwyer MS 321 Magnesense Differential Pressure Transmitter

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Dwyer MS 321 Magnesense Differential Pressure Transmitter

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MOQ : 1 Piece

Dwyer MS 321 Magnesense Differential Pressure Transmitter Specification

Sensor Type
Differential Pressure Sensor

Grade
Industrial

Thread
1/8 NPT Female

Display
No Display (Analog output signal)

Outer Size
2.6 x 2.1 x 1.8 (66 mm x 53 mm x 46 mm)

Seal Material
Silicone

Material
ABS, Polycarbonate, Electronics

Processing Type
Factory Calibrated

Mount Type
Wall/Surface mount

Scale Range
0 to 0.25 in w.c. to 0 to 1 in w.c. (standard range 0-1.0 w.c.)

Accuracy
1% FS

Finishing
ABS Plastic Housing

Measure Pressure Of
Air and Compatible Gases

Accessories
Mounting bracket, screws, installation manual

Output Signal
Selectable 4-20 mA or 0-10 VDC

Application
HVAC, building automation, duct static pressure, filter monitoring

Protection Level
IP65 (NEMA 4X)

Service Life
Designed for extended use

Operating Temperature
-20 to 70°C

Zero/Span Adjustment
Push-button on device

Weight
~150g

Response Time
< 250 ms

Power Supply
10-35 VDC, 10-28 VAC

Electrical Connection
Screw Terminal Block

Dwyer MS 321 Magnesense Differential Pressure Transmitter Trade Information

Minimum Order Quantity
1 Piece

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

Main Export Market(s)
Australia, North America, South America, Eastern Europe, Middle East, Africa, Central America, Western Europe, 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 Output and Simple Installation

The MS 321 transmitter provides user-selectable analog outputs (4-20 mA or 0-10 VDC), ensuring compatibility with diverse control systems. Mounting is streamlined with a supplied bracket and screw terminal block, while its sturdy ABS enclosure withstands tough environments. The units compact dimensions allow it to fit tight spaces without sacrificing performance.

Reliable, Accurate Monitoring for Demanding Environments

With a protection rating of IP65 (NEMA 4X) and an accuracy of 1% full scale, the MS 321 is designed for extended service life in industrial settings. Zero and span adjustments are easily performed via an onboard push-button, supporting ongoing calibration and consistent operation. It is ideal for monitoring air pressure in ducts and filters, supporting critical building and automation needs.

FAQs of Dwyer MS 321 Magnesense Differential Pressure Transmitter:

Q: How do I select the output signal for the Dwyer MS 321 Magnesense transmitter?

A: The output signal (4-20 mA or 0-10 VDC) can be selected on-site during installation using the internal selector switches, making the transmitter adaptable to your existing control or automation systems.

Q: What types of environments is the MS 321 suitable for, and how is it protected?

A: With an IP65 (NEMA 4X) rated ABS enclosure, the MS 321 is well-protected against dust and moisture, making it apt for industrial HVAC settings, building automation, and environments where robust equipment is required.

Q: When should I use the MS 321 for pressure measurements?

A: The MS 321 is designed for continuous, real-time monitoring of differential air pressure, making it ideal for use in duct static pressure sensing, filter status monitoring, and other HVAC applications that demand accuracy and reliability.

Q: Where is the optimal mounting location for the MS 321 transmitter?

A: The device is intended for wall or surface mounting near the duct or location where you need to measure pressure. It comes with a mounting bracket and related hardware for secure and straightforward installation.

Q: What is the process for calibrating or adjusting the zero/span on this transmitter?

A: Zero and span adjustments are performed directly on the device using the built-in push-button interface. This allows for quick on-site calibration without the need for extra tools or disassembling the unit.

Q: How can users benefit from using the MS 321 in their systems?

A: Users benefit from precise, real-time analog outputs for critical HVAC monitoring, reliable long-term performance in harsh industrial environments, and simplified field adjustments, ensuring system efficiency and reduced maintenance costs.

Q: What accessories are included with the MS 321, and how do they assist installation?

A: The MS 321 comes with a mounting bracket, screws, and an installation manual, which collectively facilitate convenient and secure installation for both new and retrofit pressure monitoring setups.

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