Two Point Calibration; Ladder Step Wedge; Two Point Calibration Procedure - Cygnus M5-C2P Operating Manual

Cygnus 2+ Operating Manual

Two Point Calibration

The Two Point Calibration option is only available in Single Echo
and Echo-Echo modes.
Two point calibration allows the gauge to be calibrated against two
reference thicknesses of the same material, one at the minimum
(thin) thickness range the other at the maximum (thick) thickness
range.
To achieve maximum accuracy in Single Echo mode
you must perform a Two Point Calibration – your
measurement is only as good as your calibration.
When performing a two point calibration both sample thicknesses
should be made from the same material. The temperature of the
sample material should be the close to the temperature of the
material to be measured.
The gauge will automatically compensate for v-path error in
addition to either single or two point calibrations.

Ladder Step Wedge

Typically a Ladder Step Wedge is
used to calibrate the probe and
gauge for Steel. The ladder step
wedge has 4 or 5 different
thicknesses typically ranging from
2.5 mm to 20.0 mm. You would
typically choose to calibrate using
the 2.5 and 20 mm thicknesses.

Two Point Calibration Procedure

1. Assuming you have a step
wedge of known thicknesses
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M5-CYG2P-M-01_Iss6.doc
Ladder Step Wedges
20.00
2.50