Burkert Type 8691 - Manual (Page 6)

6
Basic safety instructions
General hazardous situations.
To prevent injury, ensure:
▶ In the potentially explosion-risk area the control head Type 8691
may be used only according to the specification on the separate
approval sticker. For use observe the additional instructions
enclosed with the device together with safety instructions for the
explosion-risk area.
▶ Devices without a separate approval sticker may not be used in a
potentially explosive area.
▶ Installation and repair work may be carried out by authorized
technicians only and with the appropriate tools.
▶ After an interruption in the power supply or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.
▶ The device may be operated only when in perfect condition and
in consideration of the operating instructions.
▶ The general rules of technology apply to application planning and
operation of the device.
To prevent damage to property on the device, ensure:
▶ Do not feed any aggressive or flammable media into the pilot air
port.
▶ Do not feed any liquids into the pilot air port.
▶ When unscrewing and screwing in the body casing or the trans-
parent cap, do not hold the actuator of the process valve but the
connection housing of Type 8691.
▶ Do not put any loads on the housing (e.g. by placing objects on
it or standing on it).
▶ Do not make any external modifications to the device housing. Do
not paint the housing parts or screws.
english
Type 8691