Burkert Type 8681 - Manual (Page 23)

23
Installation
7. insTallaTiOn
safety instructions 7.1.
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 technicians 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. •
assembly of the Control Head 7.2.
The control head can be installed in any installation position, preferably with the hood face up.
The control head should be installed such that layers of dust thicker than 5 mm cannot form; meaning that such
should be ensured through correspondingly regular cleaning.
If the control head is used in explosive atmosphere (zone 2) it has to be installed in a protected installation
position according to IEC / EN 60079-0.
Hub flange 7.2.1.
Warning!
risk of injury from improper installation!
Do not improperly stress the control head. •
Do not apply any leverage effect on the head and do not climb on it. •
When sealing the flange from the outside to the inside, make sure that the inflow of cleaning agent is consid- •
ered and that the drive space of the process valve towards the control head is sealed.
For the installation of the Control Head Type 8681 to a process valve, you will require a process valve-specific
hub flange as an adapter.
The hub flange must be adapted to the design of the process valve and produce the mechanical connection
between the process valve and the control head. The axial fastening is done by two locking screws (shoulder
english
Control Head Type 8681