Maintenance And Testing; Running The Repeatability Test - HunterLab LabScan XE User Manual

Maintenance and Testing

The LabScan XE is engineered to be virtually maintenance free. There are no fans with air filters to
change and the lamp is unlikely to need replacement over the normal expected instrument life. This
chapter outlines the few parts of the sensor you must maintain in order for the instrument to function
properly and tests that you may run to assess its performance.
Notice: Do not disassemble the instrument and attempt to clean the optical
components. Do not open the instrument or remove any covers except using the
instructions given in this User's Manual or under the direction of HunterLab Technical
Support.

Running the Repeatability Test

You may test the repeatability of your LabScan XE as follows:
1. Turn the LabScan XE on and allow it to warm it up for two hours. Meanwhile, clean the black glass
and white tile and allow the tiles to return to room temperature.
2. Insert the 2-inch port plate and standardize the instrument for the 1.75-inch area of view with UV
filter nominal. Use the default 5 flashes per measurement.
3. Configure your color data display to show DE* using D65/10°.
4. Center the instrument's white standard tile at the measurement port. Do not move or remove the tile
for the remainder of the test.
5. Read the white tile as a standard.
6. Configure the timed read feature (if available) to automatically make 20 more measurements with a
read interval of 7 seconds and then initiate reading of the tile as a sample. If a timed read feature is
not present, simply make 20 more measurements approximately 7 seconds apart.
7. When all measurements are complete, examine the DE* values. The instrument passes the
repeatability test as long as no value in the DE* column is greater than 0.09. Contact HunterLab
Technical Support as described in "When You Need Assistance" if the instrument fails the
repeatability test.
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