DMTA-10004-01EN, Rev. D, November 2016
Chapter 8
118
•The HIGH or LOW alarm indicator flashes with a red background at the bottom
right corner of the measurement screen (see Figure 8-4 on page 118).
• The thickness value appears in red.
• When the beeper is active (see “Setting the User Interface Language and Other
System Options” on page 49), the 38DL PLUS emits a long beep.
The thickness value and alarm indicator appear in color only when the indoor color
scheme is active (see “Color Schemes” on page 52 to change the color scheme).
Figure 8‑4 Example of a HIGH alarm indicator
The datalogger records an alarm condition in the second status box for all stored
measurements. An A indicates the alarm mode, an L indicates a low alarm condition,
and an H indicates a high alarm condition.
There are four different alarm modes (STANDARD, PREVIOUS THK, B‑SCAN, and
REDUCTION RT):
High alarm indicator
Thickness reading
(turns red during an
alarm condition)
Previous thickness
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