Operation Manual

9 Installing the sensor
8. Using one edge of the locking nut
as a reference, draw a line that is
aligned with this edge on the
hexagonal surface of the connection
head with a pen.
9. Check again to make sure that
the actual flow direction is aligned
with the arrows on the sensor top.
The angle deviation should not be
larger than ±2°, as shown below.
10. Check again and make sure that the installation depth is correct
because sometimes the shaft is moved from its original position by the
compressed air.
11. Follow the steps below to tighten the locking nut with a wrench:
A. Fix the connection head with a wrench.
B. Clamp the locking nut with another wrench. With the line drawn
on the hexagonal surface of the connection head as the reference,
turn the wrench 120 degrees clockwise.
NOTE: If there is still gas leakage
after the above steps, use a
wrench to continue to turn the
locking nut clockwise by 30
degrees.
20 S402