Burkert 8681 Démarrage Rapide page 4

6.2. Structure
Position measuring system with LED's
Electronics module
(24VDC- or AS-i-
Design with service
interface, connection
terminals, DIP, Teach-
In-buttons)
Mechanical
manual control
at solenoid
valves (red
levers)
Electrical
connections
(Cable
glands)
Sealing lug
Locking/(shoulder) screws
as protection against pulling
off from the hub fl ange
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Oil content: max. 25 mg/m
(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 /min (for de-/aeration, ventilation)
N
(110 I /min - supplied state
N
200 I /min - maximum typical fl ow-rate)
N
(Q value according to defi nition for
Nn
pressure drop from 7 to 6 bar absolute
at +20 °C)
Connections: Intake and exhaust air connection G1/4
Working connections
7.4. Position Measuring System Data
Stroke range: 0 ... 80 mm (measuring range)
 0.1 mm
Resolution:
Total fault: ± 0.5 mm - when using a target as
mentioned in the manual
7.5. Electrical Data
see chapter 9. 24 V DC - Design or 10. AS-I - Design or
11. DeviceNet- Design or 12. 120 V AC - Design .
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All manuals and user guides at all-guides.com
Flow restriction
screw(s) of
solenoid valves
Pneumatic
connections
3
G1/8
7. TECHNICAL DATA
7.1. Operating Conditions
Ambient temperature: -10 ... +55 °C
Protection class: IP65 / IP67 according to EN 60529 or
IP69K according to IEC 40050-9
7.2. Mechanical Data
Dimensions: see data sheet
Housing material: outside:
inside:
Sealing material: outside:
inside:
7.3. Pneumatic Data
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
Water content: max. pressure dew point -20 °C or
(quality class 3) min. 10 °C below the lowest
operating temperature
8. ASSEMBLY / INSTALLATION
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.
Type 8681
PA, PP, PPO, VA
ABS, PA, PMMA
CR, EPDM
EPDM, FKM, NBR
3
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