OsmoPRO MAX Automated Osmometer User Guide
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9.1 The Diagnostics Menu
Use the Diagnostics menu to check the performance of
difference instrument components.
1.
From the Home screen, press
> Diagnostics
.
2.
Select one of the following diagnostics functions:
Function
Description/Use
A/D
Analog-to-digital circuit testing
Assurance Tag
Test scanning an assurance on the
assurance tag readers
Sample Probe
Measure the sample probe resistance
Barcode
Test the barcode scanner
LCD
Inspect screen for dead pixels
Printer
Test the printer
Motors/
Sensors
1
Test instrument motors and sensors
Cleaning
1
Supervisors can log fluidics cleaning and
pipettor priming.
Maintenance
Supervisors can perform and log routine
cleaning, preventative maintenance, and
repairs of the instrument, and save to the
events database.
1
This function is covered in
.
9.2 Testing the Analog-to-Digital Converter
Use the
A/D
feature to test the analog-to-digital
converter (A/D), sample probe, block probe, cooling
assembly, and the efficiency of heat transfer between the
cooling assembly components. Results are presented as
resistance (ohms), temperature (°C), and power
level (%).
1.
From the Home screen, press
Diagnostics > A/D
.
2.
Select the
Probe
option.
3.
Select a
Set Point
temperature to adjust the
temperature for the cooling assembly (sample block,
freeze block, and cold block).
4.
Press
Start
.
After five minutes, the block temperature should
roughly equal the set point temperature.
NOTE:
Power level is expressed as a percentage,
indicating how much power the thermoelectric
cooler uses to reach a temperature set point
sensed by the block probe. An increasing
power-level requirement indicates deteriorating
performance of the cooling assembly.
Chapter 9:
Diagnostics
