Burkert Type 8681 - Manual (Page 4)

12
Structure 6.2.
Pneumatic
connections
Locking/(shoulder) screws
as protection against pulling
off from the hub fl ange
Electrical
connections
(Cable
glands)
Sealing lug
Electronics module
(24VDC- or AS-i-
Design with service
interface, connection
terminals, DIP, Teach-
In-buttons)
Position measuring system with LED’s
Flow restriction
screw(s) of
solenoid valves
Mechanical
manual control
at solenoid
valves (red
levers)
english 13
TECHNICAL DATA 7.
Operating Conditions 7.1.
Ambient temperature: -10 ... +55 °C
Protection class: IP65 / IP67 according to EN 60529 or
IP69K according to IEC 40050-9
Mechanical Data 7.2.
Dimensions: see data sheet
Housing material: outside: PA, PP, PPO, VA
inside:
ABS, PA, PMMA
Sealing material: outside: CR, EPDM
inside:
EPDM, FKM, NBR
Pneumatic Data 7.3.
Control medium: Oil-free and dry air, neutral gases,
Quality classes in accordance with
DIN ISO 8573-1 (5 µm fi lter
recommended)
Dust content:
max. particle size 40 µm,
(quality class 5) max. particle density 10 mg/m 3
Water content: max. pressure dew point -20 °C or
(quality class 3) min. 10 °C below the lowest
operating temperature
english
14
Oil content: max. 25 mg/m 3
(quality class 5)
Temperature range
of compressed air:
-10 to +50 °C
Pressure range: 2.5 to 8 bar
Air rate of solenoid
valve:
110 I
N
/min (for de-/aeration, ventilation)
(110 I
N
/min - supplied state
200 I
N
/min - maximum typical fl ow-rate)
(Q
Nn
value according to defi nition for
pressure drop from 7 to 6 bar absolute
at +20 °C)
Connections: Intake and exhaust air connection G1/4
Working connections
G1/8
Position Measuring System Data 7.4.
Stroke range: 0 ... 80 mm (measuring range)
Resolution:
 0.1 mm
Total fault: ± 0.5 mm - when using a target as
mentioned in the manual
Electrical Data 7.5.
see chapter 9. 24 V DC - Design or 10. AS-I - Design or
11. DeviceNet- Design or 12. 120 V AC - Design .
english 15
ASSEMBLY / INSTALLATION 8.
DANGER!
Risk of injury from high pressure in the equipment!
Before loosening pneumatic lines and valves, turn off •
the pressure and vent the lines.
WARNING!
Risk of injury due to electrical shock!
Before reaching into the system (except for the •
Teach-In procedure in a non-explosive atmosphere)
switch off the power supply and secure it to prevent
restarting!
Observe applicable accident prevention and safety
•
regulations for electrical equipment!
Risk of injury from improper installation!
Installation may be carried out by authorized techni- •
cians only and with the appropriate tools!
Risk of injury from unintentional activation of the
system and an uncontrolled restart!
Secure system from unintentional activation. •
Following assembly, ensure a controlled restart. •
english
Type 8681