OfiTE 112-00 - Page 11

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5. Set the motor speed to 60 rpm.
6. After the unit has been running for 15 minutes, zero the torque reading.
Run the unit approximately 5 more minutes and zero the torque again if
required.
7. Fill the stainless steel sample cup with the test uid (260
–
280 mL) and
place it on the lowered cup stand. Raise the cup stand until the test ring,
test block, and block holder are fully submerged. Tighten the thumb screw
to secure the cup stand.
8. Zero the torque reading.
9. Position the torque arm so that it ts inside the concave portion of the
torque arm clamp. Check to make sure the test block has not fallen out of
the holder and is lying at the bottom of the cup.
10. Turn the torque adjust handle clockwise until the torque gauge on the arm
reads 150 inch-pounds.
Do not apply torque to the test ring unless it is submerged in uid.
11. Zero the time.
12. Let the machine run for 5 minutes and then record the torque reading.
Release the torque on the arm.
Test Block Holder
(#111-00-38)
Test Block
(#111-08)
Sample Cup
(#111-09 )
13. Adjust the motor speed back to Zero.
14. Lower the cup stand and discard the uid. Thoroughly wipe any remaining
uid from the sample cup, block, block holder, and test ring.