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3 USING THE ELCOMETER 124 WITH ELCOMETER 122 TESTEX TAPE
Elcometer 122 Testex Tape comprises two layers of plastic; a soft layer which carries an impression of the
rough surface and a hard layer 50 microns (2 mil) thick which acts as a substrate for the soft layer. Only the
thickness of the soft layer needs to be recorded.
The Elcometer 124 can be set to subtract automatically the thickness of the hard layer from the total
thickness of the tape:
• Ensure the faces of the anvil are clean.
• Loosen the knurled screw near the top of the dial and rotate the large scale clockwise until the long
needle points to 150 microns or 8 mil.
• Tighten the knurled screw.
Readings of Elcometer 122 Testex Tape samples will now be shown directly by the long needle, effectively
by having 50 microns (2 mil) subtracted from the total thickness.
4 MAINTENANCE
Elcometer products are designed to give many years reliable service under normal operating and storage
conditions.
Ensure the anvils are kept clean.
124_TMA_0078_00_01 (Part Number 4364).fm Page 4 Friday, May 8, 2009 11:22 AM
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