Technical Data - Elcometer 456 Operating Instructions Manual

Term Meaning
NO. OF Number of Readings. The
READINGS running value for the number
of readings taken in a group.
In the case of the mode, the
Number of Readings is the
number of values recorded,
not the total number of
readings taken.
STD DEVIATION Standard Deviation. A
statistical measure of the
spread of values in a group of
readings.

14 TECHNICAL DATA

14.1 MEASUREMENT SPEED
>60 readings per minute.
When measuring high temperature materials
measurement speed must be reduced to prevent
overheating of the
measurement speed of the High Temperature
PINIP™ probe at 250°C (480°F) is 4 readings per
minute.
14.2 MINIMUM SUBSTRATE THICKNESS
Ferrous: 300 µm (12 mils)
Non-ferrous: 100 µm (4 mils)
Measurements can be taken on thinner substrates
if 2-point calibration is carried out either side of the
required substrate thickness, however gauges will
have reduced range when adjusted for thin
substrates.
14.3 PROBE OPERATING TEMPERATURE
Separate ferrous probes:
High temperature PINIP™ probes: 250°C (480°F)
probe. The maximum
150°C (300°F)
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