Using The Product - testo 511 Manual De Instrucciones

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3 Press ( ) to confirm the input.
4 Repeat steps 2 and 3 for all functions.
- The instrument changes to measuring mode.

Using the product

For measuring barometric (surface) pressure
at sea level), the following must be observed:
· the altitude of the measurement site above sea level must be known,
and be set in the instrument, see chapter 'First steps', section 'Basic
settings (configuration mode)'.
· The barometric pressure displayed is only correct for the altitude set,
for a change of altitude, the altitude above sea level must be reset.
Altitude
For measuring barometric
level), the following must be observed:
· The altitude above sea level at the starting point of the measurement
(= Reference altitude) must be known and be set in the instrument,
see chapter 'First steps', section 'Basic settings (configuration
mode)'. When entering the reference altitude, the current absolute
pressure is also stored as a reference pressure.
· When carrying out the measurement at the destination, the weather
conditions must be the same as when entering the reference altitude.
If the weather has changed (= change of absolute pressure), a new
reference value must be entered.
Switching the instrument on:
Press .
- Measuring mode is opened.
Switching the display light on:
The instrument is switched on.
Press .
- The display light goes out automatically if no key is
pressed for 10 seconds.
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Use the product
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(= pressure
(= altitude relating to a fixed
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