Burkert Type 8793 - Manual (Page 56)

56
Installation
Type 8792, 8793
english
15. ELECTRICAL CONNECTION - TERMINAL
VERSION FOR CABLE GLAND
DANGER!
Risk.of.injury.due.to.electrical.shock!
• Before reaching into the device or the equipment, switch off the operating voltage and secure to prevent
reactivation!
• Observe applicable accident prevention and safety regulations for electrical equipment!
Risk.of.explosion.if.used.in.Ex.area!
To avoid the risk of explosion, connect the Ex device to the power supply as described below:
• Use only cable and line entry points which have been approved for the respective application area. Screw
cable and line entry points into place according to the associated installation instructions.
• Install pre-assembled cable glands according to the installation instructions supplied by the cable gland
manufacturer.
Before start-up in the Ex area, check whether the cable gland was installed as described in these installation
instructions.
• Close all unnecessary cable glands with lock screws approved for the explosions area.
WARNING!
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 installation, ensure a controlled restart.
Using.the.4.–.20.mA.set-point.value.input
If several devices of Type 8792/8793 are connected in series and the power supply to a device in this
series connection fails, the input of the failed device becomes highly resistive.
As a result, the 4 – 20 mA standard signal fails.
In this case please contact Bürkert Service directly.