LEX 1 has two operating keys. The left key
(SELECT)
serves to select
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.
Turn-on:
Pressing the SELECT key turns the instrument on. The
instrument first displays the software version (year/week) and the full-
scale pressure range. The instrument is then ready for use and indi-
cates the actual pressure (top display) and the last measured Max.-
value (bottom display).
The instrument has the following functions:
RESET:
Max.-/Min.-value are set to the actual pressure
OFF:
Turns off the instrument
MANO:
Releases the following functions:
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,
kp/cm
2
, cmH
2
O, mH
2
O, inH
2
O, ftH
2
O, mmHg, inHg
Example: Setting a new pressure unit (mbar):
--> 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:
ZERO SEt
appears.
--> Press
SELECT:
ZERO rES
appears.
--> Press
SELECT:
CONT on
or
CONT off
appears.
--> Press
SELECT:
bar
appears.
--> Press
SELECT:
mbar
appears.
--> Press ENTER: The new pressure unit (mbar) is set.
The instrument returns to the measuring mode.
2