TESTO 340 - General Notes and Identification; Identification of Symbols

General notes
Please read this documentation through carefully and familiarise yourself with the opera-
tion of the product before putting it to use. Keep this document to hand so that you can
refer to it when necessary.
This document describes the country-specific version
GB
of the testo 340 measuring
instrument.
Identification
Symbol Meaning Comments
Warning advice: Warning! Read the warning advice carefully and
Serious physical injury could be caused if the specified take the specified precautionary measures!
precautionary measures are not taken.
Warning advice: Caution! Read the warning advice carefully and
Slight physical injury or damage to equipment could take the specified precautionary measures!
occur if the specified precautionary measures are not
taken.
Important note. Please take particular notice.
Text Text appears on the instrument's display -
Key Press the key.
Function key with the function “OK”. Press function key.
 xyz Short form for operating steps. See Short form ,p.3.
OK
General notes
2