Dwyer MSX Pro Magnesense Differential Pressure Transmitter

Product Introduction

The Dwyer MSX Pro Magnesense Differential Pressure Transmitter is a professional-grade device designed for precise monitoring of differential pressure, air velocity, and volumetric flow in critical building applications. Engineered to meet stringent industry standards, it combines exceptional stability with versatile functionality, leveraging innovative global design principles. The transmitter offers 32 configurable pressure ranges in Pa, mm w.c., and in w.c., supporting both unidirectional and bidirectional modes. With dual voltage/milliamp outputs, square root extraction for velocity/flow calculations, and NIST calibration options, the MSX Pro simplifies setup while delivering reliable performance in high-stakes environments.

Product Features

Sensing & Measurement

Wide Range of Configurations:

32 pressure ranges (unidirectional/bidirectional) in Pa, mm w.c., or in w.c.

Linear pressure or velocity output with square root extraction for flow calculation.

High Accuracy & Stability:

±0.5% FSO accuracy (±1% FSO for unidirectional 0.5 in. range).

±1% FSO/year long-term stability.

Versatile Media & Environments:

Suitable for air and non-combustible gases.

Operating temperature: -4 to 158°F (-20 to 70°C).

Electrical & Outputs

Dual Signal Capability:

4–20 mA (2-wire) and selectable 0–10 V/0–5 V (3-wire) outputs for control and verification.

Flexible Power Input:

10–36 VDC (2-wire) or 17–36 VDC/21.6–33 VAC (3-wire).

Loop Resistance:

Current: 0–1250 Ω max; voltage: min. 1 kΩ load.

Design & Installation

Robust Enclosure:

NEMA 4X (IP66), UL 2043 (Plenum), and UL94 V-0 fire rating for harsh environments.

Tamper-resistant cover and liquid-tight cable gland for protection.

Easy Setup & Mounting:

Tool-less terminal block and flip-lid housing for quick wiring.

Wall, duct, or DIN mounting options; orientation-independent sensing.

Optional Display & Calibration:

4-digit LCD for real-time readings.

NIST calibration certificate available for traceable accuracy.

Technical Specifications

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.