Pneumatic.connection.of.the.type.8692/8693 - Burkert 8692 Operating Instructions Manual

12.7 Pneumatic connection of the Type 8692/8693
DANGER!
Risk.of.injury.from.high.pressure.in.the.system/device.
▶ Before working on the system or device, switch off the pressure and vent/drain lines.
Observe.the.following.for.the.proper.functioning.of.the.device:
▶ The installation must not cause back pressure to build up.
▶ To make the connection, select a hose with sufficient cross section.
▶ Design the exhaust air line in such a way that no water or other liquid can get into the device through
the exhaust air port (3 or 3.1).
Exhaust.air.concept:.
▶ In compliance with the degree of protection IP67, an exhaust air line must be installed in the dry area.
▶ Always maintain an applied control pressure of at least 0.5 ... 1 bar above the pressure which is
required to move the pneumatic actuator to its end position.
This ensures that the control behavior is not negatively affected in the upper stroke range on account of
too little pressure difference.
▶ During operation, keep the fluctuations of the control pressure as low as possible (max. ±10 %).
If fluctuations are greater, the control parameters measured with the X.TUNE function are not optimum.
Exhaust air port
Pilot air port
Figure 24: Pneumatic connection
Procedure:
→
Connect the control medium to the pilot air port (1) (3 ... 7 bar; instrument air, free of oil, water and dust).
→
Mount the exhaust air line or a silencer on the exhaust air port (3) and, if present, on the exhaust air port (3.1).
46
Label: 3
Label: 1
english
Additional exhaust air port
Label: 3.1
(only for Types 23xx and 2103 with pilot-controlled control system for a high
air flow rate from actuator size ø 125 / 130)
Type 8692, 8693
Installation