Safe-Drive
®
Process Refractometer PR-23-SD Best Practices, Generation 2
© Copyright K-Patents 2014. All rights reserved.
17
1. Turn the Retractor 60 degrees (1/6 turn) to the right to lock
the bayonet.
2. Push down the latch on Outer casing.
Attach the safety pin for additional locking.
1. Close the blow-out ball valve underneath the
isolation valve.
2. Lift up the isolation valve handle locking plate.
3. Open the isolation valve by turning the valve handle
90 degrees (a quarter turn) to the right.
Turn the hand-wheel counterclockwise until it stops.
WARNING:
If you detect leaking, revert immediately to the
previous step. Do not continue installation until the reason for
leakage has been cleared and fixed.
Fit the four M12 nuts to the bolts holding the sensor to the
isolation valve and screw them on with a 19 mm or 3/4”
wrench.
NOTE:
Set the torque at 50 Nm.
1. Turn the wheel 90 degrees (a quarter turn) to the right.
2. Remove the safety pin.
3. Unlock the latch of Outer casing.
4. Turn the casing 60 degrees (1/6 turn) to the left i.e. until the
handle is up on top.
1. Turn the hand-wheel to the left to drop the thread.
2. Lift off Outer casing.
1
2
4
3
1
2
3
5
140 mm
(5.5”)
6
1(4xM12)
50Nm (37ft/lbs)
7
2
1
8
3
4
1
2
9
