Technical Specification - Elcometer 124 User Manual

3 TAKING A READING (continued)
3.3 USING THE ELCOMETER 124 WITH ELCOMETER 122
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TESTEX REPLICA TAPE
The Elcometer 122 Testex Replica Tape comprises of two layers of
plastic; a soft layer which carries an impression of the rough surface and
a hard layer 50µm (2mil) 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 automatically subtract the thickness of
the hard layer from the total thickness of the tape.
1 Ensure the faces of the anvil are clean.
2 Loosen the knurled screw near the top of the dial and rotate the
large scale clockwise until the long needle points to 150µm
or 8mil.
3 Tighten the knurled screw.
Readings of the Elcometer 122 Testex Replica Tape samples will now
be shown directly by the long needle, effectively by having 50µm or
2mil subtracted from the total thickness.
Elcometer 122 Testex Replica Tape is available in four profile ranges
and can be purchased from Elcometer or your local Elcometer supplier.

4 TECHNICAL SPECIFICATION

Measuring Range
Each Division: Small Scale
Each Division: Large Scale
Full Large Scale Value
Gauge Dimensions
Gauge Weight
The Elcometer 124 Foil Thickness Gauge together with Elcometer 122 Testex
Replica Tape can be used in accordance with:
ASTM D4417-C, BS ISO 8503-5, NACE RP 0287, US Navy NSI 009-32,
US Navy PPI 63101-000
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Metric
5mm (5000µm)
0.2mm (200µm)
0.002mm (2µm)
0.2mm (200µm)
120 x 95 x 25mm (4.7 x 3.7 x 1.0")
254g (9oz)
TMA-0622 Issue 02 - Text with cover 27258
Imperial
0.25" (250mil)
0.010" (10mil)
0.0001" (0.1mil)
0.010" (10mil)
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