Electrical Installation With Cable Gland - Burkert 3320 Manuel D'utilisation

8.3 Electrical installation with cable
gland
8.3.1 Safety instructions
WARNING!
Risk of injury due to improper installation.
▶ Installation may be carried out by authorised technicians
only and with the appropriate tools.
▶ Observe general engineering standards & rules during
installation.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶ Secure the system against unintentional activation.
▶ Following installation, ensure a controlled restart.
NOTE!
To ensure electromagnetic compatibility (EMC) the functional
earth must be connected to earth with a short line (max. 1 m).
Functional earth must have a cross-section of at least 1.5 mm
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8.3.2
To access the terminals, open the device as described below.
Devices with ATEX or IECEx approval.
The devices are secured with a special cover. The removal
of the cover is described in the supplementary instructions
for the electromotive valves with ATEX approval and IECEx
approval.
1. Remove blind cover:
→ To unlock the blind cover, turn it counterclockwise and
remove.
.
2
Fig. 13: Remove blind cover
2. Remove the LED and storage module:
→ Remove the 2 fastening screws (allen key, width across
flats 3 mm).
→ Grab the LED and storage module by both sides of the metal
housing and lift it out.
English
Type 3320, 3321
Installing the valve
Access to connection terminals
Unlock blind
cover