
a) Updates outside the hazardous area:
Remove the positioners from the plant
and update them outside the hazardous
area.
b) Updates on site:
Updates on site are only permitted after
the plant operator has presented a sig
-
ned hot work permit.
After updating has been completed, add the
current firmware to the nameplate; this can
be done using labels.
13 Maintenance, calibration and
work on equipment
The interconnection with intrinsically safe
circuits to check or calibrate the apparatus
must only be performed with intrinsically
safe current/voltage calibrators and mea-
suring instruments to rule out any damage
to components relevant for explosion pro
-
tection.
The maximum values for intrinsically safe
circuits specified in the approvals must be
kept.
EB 8384-4 EN 79
Maintenance, calibration and work on equipment
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