Kenosha Reuse Discussion Board > WAUKEEGAN, IL
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> Dwyer digital manometer 477-4-fm 2 units included
Dwyer digital manometer 477-4-fm 2 units included
The Dwyer Series 477-FM Digital Manometers
Intrinsically Safe with 0.5% Accuracy
The Series 477-FM portable digital micromanometers (PDM) are packed with features you need to make low pressure measurement and recording faster, easier and more accurate than ever. You can instantly select from up to nine of the most widely used pressure units without having to waste time and risk mistakes with tedious conversions.
* 11 models with several basic ranges from 0-20" H2O up to 0-150 psid
* Large easy-to-read 0.4" LCD display
* Includes switchable backlight for great visibility
* 9 switchable pressure units: psid, inch H2O, mm H2O, inch Hg, mmHg, kPa, Pa, bar, mbar
* Measures Positive, Negative or Differential Pressures
* Display HOLD key freezes pressure readings for ease of use
* Stores 40 readings in memory
* Includes + and - indicators plus low battery warning
* Both audible and visual overpressure alarms
* Operates up to 100 hours on a single 9 volt battery
* FM approved Intrinsically Safe for Hazardous Locations, Class 1, Div. 1, Group A, B, C, D, T4
* USB option (non-IS) includes cable and software for easy data downloading
Dwyer 477-FM PDM Applications:
* Measurement of system pressures in heating, ventilation and air conditioning (HVAC) systems
* Perfect for HVAC technicians performing Pitot tube traverses of airflow readings across a duct
* Monitoring differential pressure across filters and coils in HVAC systems
* Measuring positive and negative pressure in air conditioning ducts
* Measuring differential pressure for clean room monitoring
