OsmoPRO® Multi-Sample Micro-Osmometer User’s Guide
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7.5.2 Sample probe & cooling assembly engagement
Figure 7.14: Alignment (Engage)
• Select the Engage tab. (Figure 7.14) Press START.
• Place an empty sample tube into the Turntable in position 11.
• The sample probe & cooling assembly partially engages. Place the sample tube Height
Positioning Fixture, P/N 112170FX, between the underside of the stripper bracket and
the top surface of the sample tube.
NOTE: THE ‘U’ CUTOUT IN THE FIXTURE SPANS THE BODY OF THE SAMPLE PROBE.
• Make certain BLOCK MTR is selected.
• Raise the cooling assembly using the UP arrow until the sample tube Height Positioning
Fixture, is sandwiched between the underside of the stripper bracket and top surface of
the sample tube. DO NOT select Learn at this time.
NOTE: THE FIXTURE SHOULD BE ABLE TO BE REMOVED WITH A MINIMAL AMOUNT OF
FORCE.
• Press MOTOR SELECT to change from BLOCK MTR to SAMPLE MTR.
• Remove the sample tube Height Positioning Fixture, and carefully lower the sample
probe until there is a minimal amount of interference between the sample tube and the
sample probe. This can be determined by trying to lift the sample tube out of the cooling
assembly using the sample tube Height Positioning Fixture, or equivalent. If the sample
tube can be lifted, there is no interference, and the sample probe must be lowered. If
the sample tube cannot be lifted, there is an interference between the sample tube and
the sample probe.
NOTE: IT IS VERY IMPORTANT TO KEEP THE INTERFERENCE BETWEEN THE SAMPLE
PROBE AND THE SAMPLE TUBE TO A MINIMUM. EXCESSIVE INTERFERENCE
DAMAGES MECHANICAL COMPONENTS
• Press LEARN. The sample probe & cooling assembly disengages, and the turntable
rotates.
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