Olympus BF-1TH190, Instructions Manual, Page: 26 / 104

20
2.1 Nomenclature and functions
BF-190 Series OPERATION MANUAL
Ch.2
No. Nomenclature Description
15 UP indication This indication shows the UP direction of the insertion tube. The direction of this
indication is the same as the UP direction of the bending section. When returning the
insertion tube to its neutral position, turn the insertion tube until the indication aligns with
the “
” indication on the control section.
16 Insertion tube
rotation ring When the ring is turned in the right or left direction, the insertion tube turns in the same
direction.
17 UP indication on
the control section This indication shows the neutral position of the insertion tube rotation ring when it is
aligned with the UP indication of the insertion tube.
Top view
15
17
16
Insertion tube rotation ring