WARNING
Connecting device in energized state
Risk of explosion in hazardous areas.
● Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Devices having the type of protection "Intrinsic safety Ex i" may also be connected in
energized state in hazardous areas.
● Exceptions for type of protection "Increased safety ec" (Zone 2) are regulated in the
relevant certificate.
WARNING
Incorrect selection of type of protection
Risk of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not used
permanently unrecognizable on the nameplate.
NOTICE
Standard cable gland/torque
Device damage.
● 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.
● In the NPT version, the positioner is delivered with a coupling. When inserting a counter
piece in the coupling, ensure that the maximum permissible torque of 10 Nm is not
exceeded.
CAUTION
Maximum AC/DC switching voltage with UL approval E344532
Mechanic Limit Switches (MLS) 6DR4004-6K/-8K are approved for use with positioners with
UL approval. The maximum switching voltage in this case is ≤ 30 V AC/DC.
If switching voltages greater than 30 V are connected, the UL approval for the positioner
becomes invalid.
Connection
5.1 Basic safety instructions
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 77
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