Electrical installation
Installation guide 762 VITO interfaces & VITO probes Page 17
3 Electrical installation
The entire electrical installation shall be in accordance with the International Standard IEC
EC 60079-14 (Selection and Installation).
Warning
Make sure that all power to the associated instrument is switched off before opening the
cover of the 762 VITO Interface.
Failure to do so may cause danger to persons or damage the equipment.
The cover must be closed before switching on power.
Caution
Make sure that no dangerous quantities of combustible products are present in the
working area.
3.1 Bonding of the VITO Interface
Proper bonding of the VITO Interface to the tank is required. Use the external ground
terminal on the VITO Interface enclosure (refer to figure 8).
Caution
Safety depends on proper bonding.
Check the resistance of the ground
connection directly after installation.
The measured ground resistance shall be
below the maximum prescribed by local
bonding requirements.
Warning
When measuring the resistance,
use a suitable explosion-proof tester.
Note:
Bonding shall be performed according
to local (explosion-proof) regulations.
Figure 8 Bonding of the
VITO Interface
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