
Bulletin TE-490W-QS
Series 490W Hydronic Differential Pressure Manometer Hydronic Application Software
Specications - Installation and Operating Instructions
Series 490W 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 Dwyer’s Hydronic Application Software that contains valve charts for
numerous manufacturers, which converts differential pressure to ow directly on the
screen.
INCLUDED WITH THE 490W
1. Handheld test instrument with Dwyer Hydronic App preloaded onto device
2. Pressure transducers (4 per kit) with case
3. Installation and operating manual
4. 1/4˝ SAE 45° x 1/4˝ Male NPT straight adapter (2 per kit)
5. 1/4” Female elbow x 1/4˝ Male NPT tting (2 per kit)
6. Piercing gauge adapters [2 per size] (6 per kit)
-1/8˝ DIA x 1-1/2˝ length
-1/8˝ DIA x 3˝ length
-1/16˝ x 1-1/2˝ length
7. 490W fabric carrying case
8. Piercing gauge adapters and ttings case (2 per kit)
9. Charger cable and power adapter for handheld test instrument
3-17/64 [83]
6-17/64
[159]
SPECIFICATIONS
Wireless Distance: Up to 65´ (19.8 m).
Service: Compatible gases & liquids.
Wetted Materials: 316 SS, PTFE, brass.
Accuracy: 2% of reading, ±1 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
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.
®
glass 3, touch screen, 1280x720.
[16]
1.000
2.940
.944
HEX
MODEL CHART
Model English Range Metric Range Maximum Range Available Engineering Units
490W-6-HKIT/NIST 0 to 50 psi, 0 to 200 psi 0 to 344.7 kPa, 0 to 1379 kPa 100 psi (6.89 bar), 400 psi (27.58 bar) psi, ft w.c., in w.c., Pa, kPa, hPa, cm w.c., mm w.c.
REPLACEMENT TRANSDUCERS
A-490W-1
A-490W-2
A-490W-3
A-490W-4
A-490W-5
A-490W-6
0 to 15 psi
0 to 30 psi
0 to 50 psi
0 to 100 psi
0 to 500 psi
0 to 200 psi
1.034 bar
2.069 bar
3.447 bar
6.895 bar
34.47 bar
13.79 bar
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
30 psig
60 psig
100 psig
200 psig
1000 psig
400 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.
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.
Phone: 219/879-8000
Fax: 219/872-9057
Gorilla® is a registered trademark of Corning, Incorporated
www.dwyer-inst.com
e-mail: info@dwyermail.com

FEATURE OUTLINE
Headset speaker
Headphone
connection with
integral protective
rubber cap
Camera
Power/sleep
button
Backlit
touchscreen
LCD
Handheld menu
button
OPERATION
Powering On/Off
To turn on the handheld, press and hold the power button. Wait approximately 15
seconds for it to fully power on. Swipe to unlock the unit.
To turn off the unit, either press and hold the power/sleep button and press Power Off
when prompted on the LCD or press the reset button.
Handheld Battery
The universal handheld utilizes an internal rechargeable battery. The battery symbol in
the top right of the screen shows the status of the battery.
TRANSDUCER BATTERY INSTALLATION
The unit is shipped with a CR2050 lithium battery installed. To replace battery, unscrew
black top cap from transducer. Tilt transducer to remove old battery. Install new battery
and replace top cap.
NOTICE
necessary, use only a CR2050 or CR2032 type such as a Sony CR2050W or
CR2032W.
Low Battery Indicator
A weak battery can cause improper operation or inaccurate measurements. The unit
is supplied with a battery that can last up to 2 years, depending on usage. When
transducers are sent in for annual recertication, the battery will be replaced.
Battery life depends on its capacity, operating temperature and
signal transmission interval. When battery replacement becomes
Handheld back
button
Handheld home
button
Figure 1
Volume
buttons
NOTICE
the battery is low, the battery symbol will turn red. When this occurs, use the included
USB charging cable and charging power adapter to recharge the unit.
NOTICE
When the 490W is received, the handheld test instrument will only
have a partial charge. Be sure to fully charge before using. When
The handheld test instrument comes factory paired to the included
wireless pressure transducers.
Rugged protective
housing
Speaker
Hand strap clip
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