Dwyer Instruments SERIES 490W Catalog Page
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SERIES 490W
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5/8
WIRELESS HYDRONIC DIFFERENTIAL PRESSURE MANOMETER
Liquid and Gas Pressure Measurement, ±2% of Reading Accuracy
TEST & DATA
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1.000
2.940
.944
HEX
Series 490W Wireless Hydronic Differential Pressure Manometer is the most
accurate and easy to operate manometer on the market. By using wireless transducers
and a versatile handheld, a single operator can monitor and balance a hydronic
system in less time than traditional hydronic balancers. The Series 490W utilizes
mobile technology to communicate via a Bluetooth connection with the transducers to
monitor differential pressure and ow on up to three different valves. Being wireless
means there are no hoses to carry, snag on equipment or needing to be drained. The
490W includes the Dwyer Hydronic Application Software that contains valve charts
for numerous manufacturers, which converts differential pressure to ow directly on
the screen.
FEATURES/BENEFITS
• Rugged weatherproof handheld housing withstands 1.5 meter drop test
• Wireless measurement of differential pressure, single pressure and air ow
• Bluetooth direct wireless communication provides range up to 65 ft (19.8 m)
• The ergonomic design is much lighter and easier to work with, providing greater
maneuverability and quick install setup
Portable
Manometers,
APPLICATIONS
• Refrigerant pressure testing
• Hydronic valve balancing
• Measure pressure drop across pumps
• Measure pressure drop across chiller and coils
for freeze protection
MODEL CHART
Model English Range Metric Range Maximum Pressure Available Engineering Units
490W-6-HKIT
490W-6-HKIT-NIST
REPLACEMENT TRANSDUCERS
A-490W-1
A-490W-2
A-490W-3
A-490W-4
A-490W-5
A-490W-6
0 to 50 psi,
0 to 200 psi
0 to 50 psi,
0 to 200 psi
0 to 15 psi
0 to 30 psi
0 to 50 psi
0 to 100 psi
0 to 500 psi
0 to 200 psi
SPECIFICATIONS
Wireless Distance: Up to 65´ (19.8 m).
Service: Compatible gases and liquids.
Wetted Materials: 316 SS, PTFE, brass.
Accuracy: 2% of reading, ±0.5 psi.
Compensated Temperature Range: 14 to 140°F (-10 to 60°C).
Pressure Hysteresis: ±0.25% FS.
Pressure Range: See chart.
Process Temperature Limits: -4 to 185°F (-20 to 85°C).
Display: 5˝ Gorrilla
®
glass 3, touch screen, 1280x720.
Resolution: 0.01 psi.
Process Connections: Two 1/4˝ male NPT.
Power Requirements: CR2050 or CR2032 lithium battery, user replaceable.
Weight: 2 lb (907 g).
Agency Approvals: CE, FCC.
0 to 344.7 kPa,
0 to 1379 kPa
0 to 344.7 kPa,
0 to 1379 kPa
1.034 bar
100 psi (6.89 bar),
400 psi (27.58 bar)
100 psi (6.89 bar),
400 psi (27.58 bar)
30 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
2.069 bar
60 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
3.447 bar
100 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
6.895 bar
200 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
34.47 bar
1000 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
13.79 bar
400 psig
psi, ft w.c., in w.c., Pa, kPa, hPa, cm
w.c., mm w.c.
ACCESSORIES
Model Description
A-HKIT-500
A-HKIT-500XL
A-HKIT-510
Piercing gage adapter, 1/8˝ dia x 1-1/2˝ length (2 per kit)
Piercing gage adapter, 1/8˝ dia x 3˝ length (2 per kit)
Piercing gage adapter, 1/16˝ dia x 1-1/2˝ length (2 per kit)
USA: California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
DWYER INSTRUMENTS, INC. 166
Gorilla® is a registered trademark of Corning, Incorporated
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