Application notes 10 Appendix
DMS Go+ Edition 4 (05/2014) 10-3
Wall thickness measurement on hot test objects
Equipped with the probe DA 305 for high-temperature
applications, the DMS
Go+ can be used for wall thick-
ness measurements on materials with a surface tem-
perature of max. 600 °C. A coupling paste especially
developed for such applications is likewise required. It is
recommended to proceed as follows:
– Calibrate the DMS Go+ according to the instructions
given in this manual.
– Clean the test surface carefully by means of a wire
brush and remove any possibly existing oxide layers.
– Knead the coupling paste ZGM for high temperatures
in the tube before using it. After that, apply one drop
of ZGM (diameter approx. 5 mm) to the contact face
of the probe, not to the test object.
– Couple the probe carefully to the test surface.
Probe
Contact face
Separation line
Longitudinal axis of tube
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