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Units include a "low battery" indicator.
The pressure sensor used is a highly stable silicon peizo-resistive
device. The standard connections are dual sized for 1/8" or
3/16" I.D. vinyl or rubber tubing. Complete instructions are
conveniently printed on rear of housing.
The
Dwyer® 475 Mark III
Handheld Digital Manometer is ideal for field calibration, monitoring or
troubleshooting HVAC systems, clean rooms, or a wide range of low
pressure pneumatic systems. This handy instrument measure
positive, negative, or differential pressure of air and natural gases in
a range from 1 inch water column (.249 kPa) to 150 psid (10.34
bar). All meters in this series are approved intrinsically safe
for hazardous locations; Class 1, Div. 1, Group A, B, C, D,
T4. Meter operation is simple
and the easy to read digital LCD makes this manometer an indispensable
test instrument for the plant engineer, industrial hygienist, or HVAC technician.
Order the optional 475-AV Air Velocity Kit to turn any of the 475 Mark
III manometers into an air velocity gauge
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Features
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- Measures
Positive, Negative and Differential Pressures
- Ranges:
0-1" w.c. (0-.249 kPa)
to 150 psid (10.34 bar)
- Rugged,
Extruded Aluminum Case
- Lightweight,
Fast and Easy to Use
- Dual
Calibration with English and Metric Units
- Intrinsically
safe. Class 1, Div. 1, Group A, B, C, D, T4
- Meter
comes with wrist lanyard and 10 ft of 3/8" tubing
- Optional
A-402A carry case is tough nylon. Double zippered for quick and easy
access. With belt loop that snaps closed.
- Optional
475-AV Air Velocity Kit includes two static pressure tips, two 9 ft lengths
3/16" ID rubber tubing, Pitot tube, step drill, slide chart,
instructions, and molded plastic carrying case with die-cut foam
liner.
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Specifications
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Service: Air and combustible,
compatible gases
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Accuracy:
±0.5% F.S., 60-78°F (15-25°C); 1.5% F.S., 32-60°F and 78-104°F
(0-15°C and 25-40°C)
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Pressure Hysteresis: ±0.1% of full
scale
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Pressure Limits: model
dependent, see ordering chart
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Temperature Limits:
0
to140°F (-17.8 to -60°C)
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Compensated Temperature Limits: 32
to104°F (0 to 40°C)
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Storage Temperature Limits: -4 to 176°F
(-20 to 80°C)
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Display: 0.5" liquid crystal
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Resolution: model
dependent, see ordering chart
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Power Source: 9 volt alkaline, included
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Battery Life: Typically 100 hours
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Pressure Connections: Two barbed connections for use with
1/8" or 3/16" I.D. tubing. Two compression
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fittings for use with 1/8" I.D. X 3/16" O.D.
tubing for 475-7-FM & 475-8-FM only.
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Size: 6 9/16"H x 2 13/16"W x 29/32"D (166 x 71 x
23 cm)
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Weight, Battery included: 12 ounces (340 grams)
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Agency Approvals: FM, CE
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Ordering
Choose from a wide selection of measuring ranges and accessories
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Model
Ranges (English/metric) Max pressure
Price Order
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Accessories
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