HunterLab EasyMatch QC, User Manual

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EasyMatch QC User’s Manual Version 2.1
11G-12 UltraScan VIS
5. Turn on the flow of clean, dry, compressed air to the clamp. You should attach a filter dryer to the
assembly.
6. Pull out the knob on the sample clamp and turn it until the desired pressure is obtained as shown on
the pressure gauge. The recommended pressure is 30-40 psi, but must not exceed 100 psi. Push the
knob back in. For comparability of measurements, all samples should be measured under the same
pressure. Monitor the pressure so that fluctuations that might affect measurements are known.
7. Flip the pressure switch on the sample clamp to the on position (up). The clamp will compress the
sample into the sample cup.
8. Initiate a reading.
9. Turn off the air pressure, remove the sample from the port, and continue with measurement of
additional samples.
Note: Always return the modified port insert to its protective cap after use.
Skein Holder
This is a device for measuring yarn skeins. Wind the yarn around
the skein holder in multiple taut layers until it is effectively opaque
and is as flat as possible. Secure it in place with the detachable
arms on the sides of the skein holder. Place the skein holder at the
reflectance port and back it with the sample clamp or a white
backing tile to provide a consistent background and pressure.
Make several measurements of the skein, rotating the holder 90°
between measurements and averaging the readings for the final
result.