K-Patents PR-23 - Manual (Page 168)

160 PR-23 instruction manual
6 Open and remove the four M12 nuts on the bolts
holding the sensor to the Isolation valve using a
19 mm or 3/4" wrench.
7 1 Turn the hand wheel clockwise until it stops to
remove the sensor from process.
2 At this stage about 140 mm (5.5") of the thread
should stick out from the middle of the wheel.
Warning! If you detect leaking, revert immediately
to the previous step. Do not continue removal until
the reason for leakage has been cleared and fixed.
8 1 Lift up the isolation valve handle locking plate.
2 Close the Isolation valve on by turning the
handle 90 degrees (a quarter turn) to the left.
Important: The Isolation valve is properly closed
when the handle points away from the sensor and
the locking plate drops down over the handle.
3 Open the blow-out valve under the Isolation
valve for box cleaning to get rid of any process
liquid inside the isolation valve.
Warning! Some process liquid will leak out through
the small ball valve; beware of splashing!
9 1 Remove the safety pin.
2 Lift the Outer casing locking latch.
3 Turn the Outer casing 60 degrees
counterclockwise (to the left) so that the handle
comes up on top.