Connection
5.1 Electric connection
SITRANS VP300 with or without HART
44
Operating Instructions, 03/2011, A5E01258666-03
WARNING
Lack of equipotential bonding
Danger of explosion through compensating currents or ignition currents through lack of
equipotential bonding.
Ensure that the device is potentially equalized.
Exception: It may be permissible to omit connection of the equipotential bonding for devices
with type of protection "Intrinsic safety Ex i".
WARNING
Unprotected cable ends
Danger of explosion through unprotected cable ends in hazardous areas.
Protect unused cable ends in accordance with IEC/EN 60079-14.
CAUTION
Condensation in the device
Damage to device through formation of condensation if the temperature difference between
transportation or storage and the mounting location exceeds 20 °C (68°F).
Before taking the device into operation let the device adapt for several hours in the new
environment.
CAUTION
Ambient temperature too high
Damage to cable sheath.
At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
ambient temperature at least 20 °C (68 °F) higher.
Note
Installing the option modules
Install the essential option modules before connecting the positioner electrically.
Note
Owing the reasons pertaining to tightness (IP enclosure rating) and the required tensile
strength, only use the cables having a diameter ≥ 8 mm for standard M20x1.5 cable gland,
or use a suitable seal insert in case of smaller diameters.
