Dwyer Differential Pressure Transmitter MS Series
Monitor Differential Pressure and Air Velocity

The MS Series Magnesense? differential pressure transmitter has a wide range of applications, which can be used to monitor micro-pressure, micro-differential pressure, vacuum, as well as measure air velocity and air volume. Its functions include: on-site selectable metric/imperial engineering units, field-installable LCD digital display, adjustable output signal damping coefficient, and square root output selectable when measuring air velocity and air volume in combination with Pitot tubes or other differential pressure air velocity sensors.
The magnetic induction technology endows the Magnesense? differential pressure transmitter with excellent performance, stability and reliability. It can be used for all micro-differential pressure, air velocity and air volume measurement applications.

Applications and Cases
● HVAC
● Pharmaceutical Factories
● Building Pressure Monitoring
● Duct Pressure Monitoring
● Fan Air Velocity Measurement
● Differential Pressure Monitoring Between Areas
● Filter Condition Monitoring

Product Features
● On-site upgrade to LCD digital display without stocking two different transmitters. Simply remove the front cover and insert the LCD module to assemble a digital display transmitter on site, which can easily meet user needs.
● On-site selectable measurement ranges, whether imperial or metric. There is no need for large inventory, and you can always have transmitters that meet the range requirements.
● Digital button calibration for zero point and range replaces traditional potentiometer calibration, which greatly saves calibration time and reduces maintenance costs.
● Adjustable digital damping is used to smooth frequent pressure fluctuations, which is commonly used in airflow monitoring applications.
● Can be field-converted to an air velocity model for applications such as fans. Square root output can be used to directly display air velocity in fpm or m/s. There is no need to use intelligent programmable displays or PLC to convert differential pressure into air velocity. This not only saves hardware costs, but also reduces installation time.

Technical Specifications
Medium: Air and non-combustible compatible gases
Material: Please contact us for consultation
Accuracy: ±1% for ranges of 0.25" (50 Pa), 0.5" (100 Pa), 2" (500 Pa), 5" (1250 Pa), 10" (2kPa), 15" (3kPa), 25" (5 kPa);
±2% for ranges of 0.1" (25 Pa), 1" (250 Pa) and all bidirectional ranges.
Stability: ±1% / year FSO.
Temperature Range: 0 to 150°F (-18 to 66°C).
Pressure Range: Max 1psi, relief pressure 10psi.
Power Supply: 10 - 35 VDC (2-wire); 17 - 36 VDC or isolated 21.6 - 33VAC (3-wire).
Output Signal: 4 to 20 mA (2-wire); 0 - 5 V, 0 - 10 V (3-wire).
Response Time: Adjustable from 0.5 to 15 seconds. Time constant: 1.5 seconds to 45 seconds to reach 95% of reading
Zero and Range Adjustment: Digital buttons
Loop Resistance: Current output: Max 0-1250 Ω max; Voltage output: Min 1 kΩ.
Current Consumption: Max 40mA
Display (Optional): 4-digit LCD
Electrical Connection: 4-20 mA, 2-wire: European style terminal block, suitable for 16 -26 AWG wires.
0-10 V, 3-wire: European style terminal block, suitable for 16 -22 AWG wires.
Conduit: 1/2" NPT thread.
Accessory (A-151): Cable gland for 5-10mm diameter cables
Process Connection: 3/16" inner diameter tube (5 mm inner diameter). Max outer diameter 9mm.
Enclosure Protection: NEMA 4X (IP66)
Installation Orientation: Diaphragm vertical orientation
Weight: 8.0 oz (230 g)
Certification: CE