Dwyer 477 - Manual

Series 477 Digital Manometers are versatile, hand-held, battery operated manometers available in several basic
ranges from 0-20 in. H
2
O up to 0-150 psid. All models measure either positive, negative or differential pressures with
±0.5% of full scale accuracy. You can select from up to nine common English and metric pressure units so conversions
are not necessary. A memory function allows storage of up to 40 readings for later recall and a backlight provides aux-
iliary lighting for hard-to-see locations. Also standard are a hold feature plus both visual and audible overpressure
alarms.
Series 477 Handheld Digital Manometer
Specifications - Installation and Operating Instructions
Bulletin D-22
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Service: Air and compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±0.5% F.S., 60 to 78°F (15.6 to 25.6°C);
±1.5% F.S. from 32 to 60°F and 78 to 104°F (0 to
15.6°C and 25.6 to 40°C).
Pressure Hysteresis: ±0.1% of full scale.
Pressure Limits: See chart.
Temperature Limits: 0 to 140°F (-17.8 to 60°C).
Compensated Temperature Limits: 32 to 104°F (-0 to
40°C).
Storage Temperature Limits: -4 to 176°F (-20 to 80°C).
Display: 0.42˝ (10.6 mm) 4-1/2˝ digit liquid crystal.
Resolution: See chart.
Power Requirements: 9 volt alkaline battery. Battery
included but not connected.
Weight: 10.2 oz (289 g).
Connections: Two barbed connections for use with 1/8˝
(3.18 mm) or 3/16˝ (4.76 mm) I.D. tubing. Two compres-
sion fittings for use with 1/8˝ (3.18 mm) I.D. x 1/4˝ (6.35
mm) O.D. tubing for 477-6-FM & 477-7-FM only.
Agency Approvals: FM, CE.
Model*
477-000-FM
477-00-FM
477-0-FM
477-1-FM
477-2-FM
477-3-FM
477-4-FM
477-5-FM
477-6-FM
477-7-FM
477-8-FM Range
0-1.000 in w.c.
0-4.000 in w.c.
0-10.00 in w.c.
0-20.00 in w.c.
0-40.00 in w.c.
0-200.0 in w.c.
0-10.00 psi
0-20.00 psi
0-30.00 psi
0-100.0 psi
0-150.0 psi kPa
.2491
0.996
2.491
4.982
9.96
49.82
68.95
137.9
206.9
689.5
1034 bar
.0498
.0996
.4982
.6895
1.379
2.069
6.895
10.34
psi
.1445
.3613
.7225
1.445
7.225
10.00
20.00
30.00
100.0
150.0
in Hg
.0736
.2942
.7355
1.471
2.942
14.71
20.36
40.72
61.08
203.6
305.4 in w.c.
1.000
4.000
10.00
20.00
40.00
200.0
276.8
553.6
830.4
2768
4152 mm Hg
1.868
7.473
18.68
37.36
74.73
373.6
517.1
1034
1551
5171
7757 mbar
2.491
9.96
24.91
49.82
99.6
498.2
689.5
1379
2069
6895 mm w.c.
25.40
101.6
254.0
508.0
1016
5080
7031 Pa
249.1
996
2491
4982
9964
Available Pressure Units Maximum
Pressure
5 psig
5 psig
5 psig
10 psig
10 psig
30 psig
30 psig
60 psig
60 psig
150 psig
200 psig