COVID-19 Update: Alpha Controls & Instrumentation is here to help and support your business in anyway possible during these uncertain times. Please click here to read more.

Dwyer

475 Intrinsically Safe Handheld Digital Manometer

Measures positive, negative, or differential pressures of air and natural gases with a large, easy-to-read LCD

Starting At
$230.00 CAD
Normally ships in 2-3 Weeks

Configure   Request Quote

Can We Help You?

CALL US   EMAIL US   CHAT LIVE

Our product experts are here to help you find the right solution for your application!

The Series 475 Handheld Digital Manometer measures positive, negative, or differential pressures of air and natural gases in ranges from 1 in W.C. (0.249 kPa) to 150 PSID (10.34 Bar). The dual push pads on the front panel control the on/off, auto zero, and pressure unit selection, allowing for simple operation with no set up needed. When used with a Dwyer® Pitot tube, the Series 475 can also be used as an air velocity gage.

The 475 is also available in a convenient kit, which includes one (1) pitot tube, two (2) statis pressure tips with magnetic mounting, rubber tubing, one (1) 9 V battery, one (1) step drill, one (1) AV calculator slide rule, and a custom fitted carrying case.

• Rugged aluminum case protects instrument from damage during transport/use
• Large, easy to read LCD and simple operation
• FM approved to be intrinsically safe in hazardous locations, Class 1, Div 2, Groups A, B, C, D, T4 Ta = 70°C

Service Air and compatible combustible gases
Wetted Materials Consult factory
Accuracy 0.5% Full Scale, 60F - 78F (15.6C - 25.6C);
1.5% Full Scale from 32F - 60F and 78F - 104F (0C - 15.6C and 25.6C - 40C)
Pressure Hysteresis 0.1% of Full Scale
Pressure Limits See catalog page
Temperature Limits 0F - 140F (-17.8C - 60C)
Compensated Temperature Limits 32F - 104F (0C - 40C)
Storage Temperature Limits -4F - 176F (-20C - 80C)
Display 0.42 in (10.6 mm) 4-digit LCD
Resolution See Data Sheet
Power Requirements 9 V alkaline battery, installed non-functional, user replaceable
Weight 10.8 oz. (306 g)
Process Connections Two (2) barbed connections for use with 1/8 in (3.18 mm) or 3/16 in (4.76 mm) I.D. tubing.
Two (2) compression fittings for use with 1/8 in (3.18 mm) I.D. x 1/4 in (6.35 mm) O.D. tubing for 475-7 & 475-8 only
Agency Approvals CE, FM

• Monitoring natural gas pressures on boilers and other combustion equipment
• Air velocity monitoring, when used with a Dwyer® Pitot tube and AV calculator
• Field calibration of other instruments
• Monitoring or troubleshooting HVAC systems

Item
Description
Availability
Price
A-402A Carrying Case
Tough gray nylon pouch to protect and series 477AV manometer
Normally ships in 1-2 Weeks
$75.00 CAD
UHH-C1 Soft Carrying Case
Soft carrying case for use with the UHH2 universal handheld base unit
Normally ships in 1-2 Weeks
$68.00 CAD
A-47X-BOOT Protective Magnetic Rubber Boot
Protective magnetic rubber boot for manometers (manometer not included)
Normally ships in 1-2 Weeks
$22.00 CAD