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temperature in tenths of a degree Celsius, to sample temperature in

tenths of a degree Celsius, to cooling block duty cycle (“NN%” on),

to block probe resistance in ohms, etc.

CAUTION The temperature values displayed are based on the

block probe resistance which the instrument is config-

ured for. Thus, if the block probe bin number has been

incorrectly set, both the displayed temperatures and

resistances will be incorrect, as well as the actual tem-

perature of the sample cooling well.

While the target temperature is “off”, the block probe is warm and

its resistance should be less than 4,990 ohms. The resistance win-

dow of the A/D channel is 4,990 to 10,558 ohms, so the display

should continuously indicate 4990.00 ohms until a target cooling

well block temperature has been selected.

Press STOP to exit to the TEST menu.

2. Stir/Freeze Test

This menu item enables visually and aurally checking the stir and

freeze vibration amplitudes. Please refer to section H for instruc-

tions.

3. Probe Bin Test

This test is used to determine the resistance and bin number of the

sample probe at a specific temperature (-0.093°C). It is essential-

ly the same as any other sample test except that the sample probe

resistance and correct bin number are determined and displayed, in

place of the sample freezing point.

Load a cassette containing a sample tube with 2-mL of bin setting

fluid into the 4C3 before running these tests.

The Advanced

Model 4C3 User’s Guide

Advanced Instruments 4C3 User Manual

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