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Dwyer Instruments Inc.

Series 477 Digital Manometer
Dwyer 477 Digital Manometer
  • Selectable Pressure Units from up to 9 English/Metric Units.
  • ±0.5% Accuracy
  • FM Approved Intrinsically Safe for Hazardous Locations
  • Stores 20 Readings in Memory for Later Reference
  • Measure Positive, Negative or Differential Pressures
  • Large 0.4" LCD Display with Back Light
  • Audible and Visual Over pressure Alarms
  • Low Battery Warning
Series 477 Handheld Digital Manometers are packed with features you need to make pressure measurement and recording faster, easier and more accurate than ever. First, 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. Next, a non-volatile memory function enables storage of up to 20 readings - perfect for HVAC technicians making pitot tube traverses of air flow readings across a duct.

The Series 477 is FM approved intrinsically safe for hazardous locations, Class 1, Div. 1, Groups A,B,C,D,T4.
 
Model Numbers
Model Number
English Range
Metric Range
Maximum Pressure
477-000-FM
 0-1.000"WC
 0-0.249 kPa
 5 PSIG
477-00-FM
 0-4.000"WC
 0-0.996 kPa
 5 PSIG
477-0-FM
 0-10.00"WC
 0-2.491 kPa
 5 PSIG
477-1-FM
0-20.00"WC
0-4.982 kPa
10 PSIG
477-2-FM
0-40.00"WC
0-9.96 kPa
10 PSIG
477-3-FM
0-200.0"WC
0-49.82 kPa
30 PSIG
477-4-FM
0-10.00 PSID
0-68.95 kPa
30 PSIG
477-5-FM
0-20.00 PSID
0-137.9 kPa
60 PSIG
477-6-FM
0-30.00 PSID
0-206.9 kPa
60 PSIG
477-7-FM
0-100.0 PSID
0-689.5 kPa
150 PSIG
477-8-FM
 0-150.0 PSID
 0-1034 kPa
 200 PSIG
Specifications
Accuracy ±0.5% of full scale from 60 to 78°F (15 to 25°C);
±1% of full scale from 32 to 60, 78 to 104°F (0 to 15, 25 to 40°C)
Storage Temperature -4 to 176°F (-20 to 80°C)
Pressure Hysteresis ±0.1% of full scale
Pressure Connections: Low Pressure Units: 1/8" or 3/16" ID Tubing
High Pressure Units: Compression Nuts
Power 9V Alkaline Battery (Included)
Battery Life Up to 100 Hours (Less when back light is used)
Display 0.4" LCD with back light
Size 166 x 71 x 23mm
Weight 340g
Contact Us!

Sherman Instruments
John Sherman Agencies Ltd.
1641 Venables Street
Vancouver, British Columbia, Canada
V5L 2H1

Phone: 604-254-9622
Fax: 604-254-3123

e-mail: info@johnsherman.com
 

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