EM1401 / EM1401 UT EMA Thickness Gauge. Operation Manual.
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46
Calibration Test Procedure
During the calibration test, the following operations should be performed:
1.
External examination;
2.
Functional test;
3.
Measurement error calculation.
In agreement with the bodies conducting the Device calibration test, the
calibration test may be performed not in full.
Calibration Instruments
The calibration instruments shall have valid Calibration Test Certificates or
marks.
The calibration test is performed using the following test samples:
1.
A КУСОТ-180 set of standard samples of the equivalent ultrasonic
thickness or a КМТ-176М-1 (КМТС-97) set of ultrasonic thickness control gauges;
2.
A set of plane-parallel samples made of one steel blank with the following
parameters:
Thickness, mm
Roughness RZ, micron, less
than
2 ± 0.01
10
10 ± 0.015
20
60 ± 0.03
20
The calibration instruments can differ from those mentioned above but their
characteristics must not be inferior to those mentioned above and must be sufficient to
obtain a reliable result. The use of such calibration instruments must be agreed with
the Gosstandart bodies
Calibration Test Conditions
The calibration test shall be performed under the following climatic conditions:
Air temperature:
+5 to +30
С
