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4 Electrical Installation Volume 1
4.6 Uni-Probe with Signal Output
Profibus PA / FOUNDATION
™
Fieldbus
(not intrinsically safe)
The following special information is valid for the devices:
• LB 491-81 Profibus PA
• LB 491-91 FOUNDATION
™
Fieldbus
Danger, electric shock!
If the housing is open, you may get in contact with live parts when
the power supply is turned on.
Carefully attach the cover on the housing before turning on the
power supply. Attach the cover carefully onto the housing and
tighten it using a torque of 25Nm (standard value).
Fig. 4-9 Uni-Probe with fieldbus module
Before closing, make sure that the threads are clean and greased
with OKS 217.
For information on the terminal assignment of the remaining termi-
nals, please refer to section "4.2 Terminals" on page 1–59.
Terminals for signal output
Fieldbus module
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