DAU-20 Instruction Manual
1
1. Outline of Equipment
1-1. Intended Use and Prohibitions of Equipment
This diaphragm type dry vacuum pump performs evacuation by reciprocating motion of rubber
membrane (diaphragm).
Please take note of the following prohibitions to use Equipment correctly.
<Prohibitions>
(1) This pump is for evacuation only. Never use for pressurization.
(2) Do not do resale, repair, and remodeling that we agreed on.
(3) This pump is not made of corrosion resistant specification. Be sure to apply it to
the clean normal temperature air or gas of equivalent characteristics.
(4) Although corrosion resistance resin for external packaging of DTU-20 partly,
there are chemicals that erode the corrosion resistance. Prevent splashing the
following chemicals on the pump. It is recommended to wipe off chemicals
attached regardless description in the followings.
Acetone · Ethyl ether · Ethyl acetate · Flora and fauna oil, etc.
(5) Never absorb the gas that mixed dust, dust, moisture.
(6) Do not operate long time in environment near the atmospheric pressure.
1-2. Equipment Specifications
Table 1
–1 Equipment Specifications
Model Name
DAU-20x
(X: A=100V, B=115V, C=200V, D=220V, E=230V)
Exhaust
velocity
50Hz
20L/min
60Hz
23L/min
Ultimate pressure
200Pa
Motor
1
φ
,AC (
±
10%)
80W, 4 P, condenser driven, w/thermal protector (auto reset type)
Rated current
(A)
A
100V 1.46/1.46(50Hz/60Hz) D
220V 0.7/0.72(50Hz/60Hz)
B 115V 1.30/1.30(50Hz/60Hz) E
230V 0.67/0.68(50Hz/60Hz)
C
200V 0.77/0.74(50Hz/60Hz)
Rotating speed
（
min-1
）
A
100V 1320/1610
D
220V 1310/1610
B 115V 1295/1605
E
230V 1310/1610
C
200V 1315/1615
Inlet-exhaust pipe
O.D.Φ10XI.D.Φ6(Rc1/8)
Weight
7.5kg
Operating ambient
temperature
5
～
40
C
External dimensions
161mm(W)327×mm(L)×217mm(H)
Noise
※
52 dB(A)
Over Voltage Category
Ⅱ
Pollution Degree
2
WARNING
CAUTION
