TESTO 623 - Measuring Operation

6 Using the product
No. Dis
play Function
Setting
option/value
⑥
Ma
nual Scale
or Auto Scale
flashes
Choose between
automatic and
manual scaling
Manual Scale or
Auto Scale
Only if Manual
Scale is
selected:
Manual Scale
and upper limit
value flash
Set value for upper
limit
-
Only
if Manual
Scale is
selected:
Manual Scale
and lower limit
value flash
Set value for lower
limit
-
If the po
wer supply is interrupted the settings are being
saved for at least 3 min.
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6.5. Measuring
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With max./min., the time that it occurred and the
corresponding value (°C/% RH) is shown.
Displaying max. values
> Press [Max].
If Max. flashes, the past max. values can be viewed with [
◄] or
[
►].
If the max. temperature value is shown, press [
] to
display the max. humidity value.
If the [Max] key is not pressed for > 5 min, the screen
automatically reverts to the current display