OsmoPRO® Multi-Sample Micro-Osmometer User’s Guide
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8. Diagnostics
The Diagnostics screen (Figure 8.1) allows the user to navigate through the various diagnostic
features designed to test various components of the instrument. Enter diagnostics by pressing
MENU on the Main screen, and then press DIAGNOSTICS. From the Diagnostics screen, the
user can navigate to the various diagnostic functions discussed in more detail below. To exit
Diagnostics and return to the Main screen, press HOME.
Figure 8.1: Diagnostics Screen
From the Diagnostics screen, press A/D to open the A/D screen (Figure 8.2). Using this
screen, the user can perform A/D samples. Press EXIT to return to the Diagnostics screen.
A/D tests are designed to check the performance of the analog to digital converter (A/D),
sample probe, block probe, cooling assembly, and the efficiency of heat transfer between the
components of the cooling assembly. Results are presented as resistance (ohms), temperature
(°C), and power level. Power level is expressed as a percentage and indicates how much power
the thermoelectric cooler uses to reach an operating temperature sensed by the block probe. An
increasing power level, indicates deteriorating performance of the cooling assembly.
Figure 8.2: A/D
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