Data Input; Keyboard Lock - Ahlborn ALMEMO 6290-7B Operating Instructions Manual

Display and Keyboard
5.4 Data Entry
The programming of numeric parameters is carried out as follows:
FUNCTION
Select the function by using the key FUNCTION ...
The programming is started by using the key ENTER.
ENTER
The first digit flashes
and can be altered.
The digit can be increased using the key " .
After exceeding the maximum value the cycle restarts from zero.
The digit can be decreased using the key # .
After falling below zero the maximum value follows (9 or 5).
!
The sign can be changed using the key .
A switch to the next digit is performed using the key $ .
To switch back to the previous digit press the key  .
ENTER
The programming process is complete
after setting the last digit and again operating the key $ .
ENTER
Clr
Programming and measured values can be cleared using ,

5.5 Keyboard Lock

To protect all settings during a measurement against unauthorised alteration
the keyboard can, in addition to the sensor locking (see. 6.7), be locked by
using a key switch (6) that is located at the back of the unit.
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