2-8 Introduction to Your LabScan XE System 01/03
sides of the skein holder. Place the skein holder at the sample 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.
Compression Cell Set
This device is used for compressing fibers into a compact mass that permits repeatable color analysis.
The assembly consists of a port insert, glass 2.5-inch (64-mm) sample cup, and compression cell. It
requires plastic tubing, compressed air line, and a pressure gauge.
To operate the compression cell assembly:
1. Remove the original port insert and replace it with the counter-bored port insert supplied with the
compression cell set.
2. Standardize the instrument.
3. Place the sample material into the sample cup and place the cup in the cup holder on the bottom
half of the compression cell.
4. Place the compression arm over the cup holder and twist the arm counter-clockwise until it locks
into the detents. The red lever on the arm should be pointing down.
5. Supply clean, filtered, compressed air to the compression cell through the 1/8 NPT air fitting at
the top of the arm. The maximum air pressure to be used is 50 psi.
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