6 Using the product
30
Format…
The memory card can be formatted. During the formatting, all
saved data on the SD card is lost.
1. [OK] | Configuration… | [OK] | Format… | [OK].
- A confirmation request appears as to whether the memory card
should really be formatted.
2. Confirm with [OK] or cancel process with [Esc].
Factory reset
The instrument settings can be reset to the factory settings.
Time/date and country settings are not reset.
Please note: After a factory reset, the numbering of images begins
anew. When saving images, images that have already been saved
and have the same number are overwritten!
> Transfer all saved images onto a PC before performing a reset
to prevent possible overwriting.
1. [OK] | Configuration… | [OK] | Factory settings… | [OK].
- A confirmation request appears as to whether the instrument
should really be reset to the factory settings.
2. Confirm reset with [OK] or cancel process with [Esc].
6.2. Measuring
Important framework conditions
Please observe the following framework conditions in order to
obtain significant measurement results.
Humidity measurement (testo 875-2 only):
• Gently wave the separate dewpoint measuring instrument to
shorten the equalization period. Avoid sources of interference
(e.g. breathed air).
Building thermography, investigating the building shell:
• Considerable temperature difference between inside and
outside required (ideal: > 15 °C/> 27 °F).
• Consistent weather conditions, no intensive sunlight, no
precipitation, no strong wind.
To ensure the highest level of accuracy, the imager requires an
equalization period of 5 minutes after being switched on.
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