LEO 1 has two operating keys. The left key (SELECT) serves to se-
lect the functions and the pressure units. The right key (ENTER)
activates the selected function or pressure unit. The right key is also
used to switch between the MAX.- and MIN.-value in both the Mano-
and Peak-mode.
Turn-on: Pressing the SELECT key turns the instrument on.
The instrument subsequently displays the software
version (year/week), the full-scale pressure range,
the actual pressure (top display) and the last mea-
sured MAX.-value (bottom display).
The instrument has the following functions:
RESET: Max.-/Min.-value and Peak-value are set to the
actual pressure
OFF: Turns off the instrument
MANO: Releases the following functions:
PEAK off: Normal measuring mode with 2 measurements
per second
PEAK on: Fast measuring mode with 5000 measurements
per second
ZERO SEt: Sets a new Zero reference
ZERO rES: Sets the Zero to factory setting
CONT on: Deactivates the automatic turn-off function
CONT off: Activates the automatic turn-off function
(the instrument
turns off 15 minutes after the last key function)
followed by the unit selection: bar, mbar/hPa, kPa, MPa, PSI
Example: Setting a new Zero Reference:
--> Turn on the instrument by shortly pressing the SELECT-key.
--> Wait for the instrument’s measuring mode (approx. 3 seconds).
--> Press the SELECT-key 3 times: MANO appears.
--> Press ENTER: PEAK on or PEAK off appears.
--> Press SELECT: ZERO SEt appears.
--> Press ENTER: The new Zero reference is set. The instrument
returns to the measuring mode.
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