Dụng Cụ Đo Áp Suất Series 477A
Model |
: |
SERIES 477A |
Manufacturer |
: |
DWYER |
Origin |
: |
USA |
Service |
: |
Air and non-combustible compatible gases. |
Wetted Parts |
: |
Consult factory |
Accuracy |
: |
±0.10% of full scale from 60 to 78°F (15.6 to 25.6°C); ±1% of full scale from 32-60 and 78-104°F (0-15.6 and 25.6-40°C). |
Pressure Hysteresis |
: |
±1% of full scale |
Pressure Limits |
: |
See chart. |
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 digit LCD. |
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 for 477A-1, 477A-2, 477A-3, 477A-4, 477A-5 only. Two compression fittings for use with 1/8" (3.18 mm) I.D. x 1/4" (6.35 mm) O.D. tubing for 477A-6 and 477A-7 only. |
FEATURES
- Measure positive, negative, or differential pressures
- Instant selection from up to nine english/metric units
- Stores 40 readings in memory for later reference
- Both audible and visual overpressure alarms
- Operates up to 100 hours on a single 9 volt battery
- New adjustable damping feature for averaging fluctuating reading
Model |
Range |
Available Pressure Units |
Maximum
Pressure |
bar |
psi |
in Hg |
kPa |
in w.c. |
mm Hg |
mbar |
FTWC |
mm w.c. |
Pa |
477A-1
477A-2
477A-3
477A-4
477A-5
477A-6
477A-7
|
0-20.00 in w.c.
0-40.00 in w.c.
0-200.0 in w.c.
0-10.00 psi
0-30.00 psi
0-50.00 psi
0-100.0 psi |
.0498
.0996
.4982
.6895
2.069
3.447
6.895 |
.7225
1.445
7.225
10.00
30.00
50.00
100.0 |
1.471
2.942
14.71
20.36
61.08
101.8
203.6 |
4.982
9.96
49.82
68.95
206.9
344.7
689.5 |
20.00
40.00
200.0
276.8
830.4
1384
2768 |
37.36
74.73
373.6
517.1
1551
2585
5171 |
49.82
99.6
498.2
689.5
2069
3447
6895 |
1.667
3.333
16.67
23.07
69.20
115.3
230.7 |
508.0
1016
5080
7031 |
4982
9964 |
3 psig
3 psig
15 psig
30 psig
60 psig
100 psig
200 psig |
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