Connecting
4.1 Basic safety notes
Transducers
28
Compact Operating Instructions, 09/2018, A5E43390688-AB
4.1.1
Connecting device in energized state in hazardous areas
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
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 (36 °F) higher.
NOTICE
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 (36 °F).
•
Before taking the device into operation let the device adapt for several hours in the new
environment.
Summary of Contents for SITRANS 7ML1100
Page 54: ......
