14
(E)
SR27A-AZ Series, CH22 Series
6. Air Purge
In the standard confi guration, an M5 tap hole for air purging is provided in the end cap section of the scale.
Air can be injected into the scale unit to reduce the eff ects of the environments shown below.
Th
e actual eff ects, however, will vary depending on operating conditions. Th
erefore, be sure to fully check the eff ects before
using air purge.
• Use in dusty area
• Use in locations close to coolants
Air Tube Route and Device Confi guration
Prepare the devices as shown in the fi gure below, and air is injected into the scale by connecting the air tubes.
T
ube
bending
radius
R:
1
5
mm
or
more
Po
l
yurethane
tube
with
outer
diameter
of
6
mm
and
inner
diameter
of
4
mm
Ny
l
on
tube
with
outer
diameter
of
8
mm
Air
pressure
sour
c
e
Air
fi
l
ter
(5
μm
fi
l
tration)
Mist
separator
(0.3
μm
fi
l
tration)
Pressure
redu
c
ing
va
l
ve
Distributors
S
c
a
l
e
unit
Air
nipp
l
e
Hex.
so
c
ket-head
set
s
c
rews
(M5
×
6)
Fig. 6-1
Th
e customer must obtain the air supply unit and input/output air tube. Th
e recommended air supply unit specifi cations and
main components are shown in the table below.
Specifi cations
Guaranteed pressure resistance
1.5 MPa
Maximum operating pressure
1020 kPa
Minimum operating pressure
20 kPa
Pressure setting range
20 to 200 kPa
Operating temperature and operating fl uid temperature
–
5 to 60 °C (no freezing allowed)
Filtration
Air fi lter: 5 μm
Mist separator: 0.3 μm
Pressure gauge connection port
2 × Rc (PT) 1/8
Tube connection port
Input side: Tube outer diameter of 8 mm (1 location),
Output side: Tube outer diameter of 6 mm (3 locations)
Auto drain diff erential pressure
150 to 1020 kPa
Summary of Contents for SR27A-AZ Series
Page 3: ...SR27A AZ Series CH22 Series J 1...
Page 4: ...SR27A AZ Series CH22 Series 2 J...
Page 6: ...ii J SR27A AZ Series CH22 Series...
Page 10: ...4 J SR27A AZ Series CH22 Series 1 6 2006 42 EC...
Page 11: ...J 5 SR27A AZ Series CH22 Series 2 SR27A AZ CH22 S N...
Page 12: ...6 J SR27A AZ Series CH22 Series 3 8 3 1 CH22 SR27A M4 M8 M4 B A M8 3 2 3 2 1 3 1 ML 3 2 3 2...
Page 13: ...J 7 SR27A AZ Series CH22 Series 2 3 M8 16 20 N m M4 10 2 7 N m M4 20 2 7 N m 3 3 3 4...
Page 15: ...J 9 SR27A AZ Series CH22 Series 3 3 7 2 1 0 1 MG 0 05 MG 0 0 2 0 05 3 8 mm...
Page 16: ...10 J SR27A AZ Series CH22 Series 2 2 0 1 MG 3 9 3 t 1 0 mm t 1 0 mm 3 10 t 1 0 mm 1 mm mm...
Page 17: ...J 11 SR27A AZ Series CH22 Series 3 3 5 mm 1 0 N m 242 1 0 N m 1 3 2...
Page 27: ...J 21 SR27A AZ Series CH22 Series 9 3...
Page 28: ...22 J SR27A AZ Series CH22 Series...
Page 32: ...ii E SR27A AZ Series CH22 Series...
Page 54: ...22 E SR27A AZ Series CH22 Series...
Page 58: ...ii G SR27A AZ Series CH22 Series...
Page 80: ...22 G SR27A AZ Series CH22 Series...
Page 82: ......
Page 83: ...SR27A AZ Series CH22 Series 1...
