Dwyer MS-111 Micro Differential Pressure Transmitter 4-20mA Output 50 Pa Accuracy for HVAC Monitoring

Price Negotiable

Price: usd76 piece/pieces

MOQ: 1

Delivery Time: 5-8 work days

Brand: Dwyer

Product Description

MS-111 Micro Differential Pressure Transmitter Overview

The Dwyer MS-111 is a versatile micro differential pressure transmitter designed for monitoring pressure and wind speed in various industrial applications. This compact instrument features field-selectable units, adjustable output signals, and advanced magnetic sensing technology for superior long-term performance.

Key Applications

Building pressure monitoring systems
Duct pressure monitoring in HVAC systems
Fan velocity measurement and control
Zone differential pressure monitoring
Filter condition monitoring and maintenance

Product Features

Field-selectable English or Metric measurement ranges
Field-upgradeable 4-digit LCD display
Adjustable output signal damping with optional display
Square root output capability for pitot tubes and flow sensors
Magnetic sensing technology for reliable long-term performance

Technical Specifications

Parameter	Specification
Model	MS-111
Output Signal	4~20 mA
Display	4-digit LCD
Service Medium	Air and non-combustible compatible gases
Accuracy	±1% for 0.25" (50 Pa)
Stability	±1% FS/year
Temperature Range	0 to 150°F (-18 to 66°C)
Pressure Limits	1 psi maximum operation; 10 psi burst
Power Requirements	10 to 35 VDC (2-wire); 17 to 36 VDC or isolated 21.6 to 33 VAC (3-wire)
Response Time	300 ms
Mounting Orientation	Diaphragm in vertical position
Weight	230g

Product Images

MS-111 Differential Pressure Transmitter front view showing LCD display and housing

MS-111 Transmitter side view and mounting details

MS-111 Differential Pressure Transmitter wiring diagram and connections

MS-111 Transmitter installation example in industrial setting

Installation Notes

Important Safety Instructions:

Cables must be fitted through 1/2" NPT cable gland or ATEX/IECEx conduit (not supplied)
Ensure tight closure of cover and cable gland to maintain IP66 rating
Open cover only after de-energizing the instrument
Always check local safety rules and warnings on unit and manual for correct use in hazardous areas