Operation; Keyboard - MACHEREY-NAGEL PF-12 Mode D'emploi

The photometer is now ready for measurement.

3. Operation

The photometer PF-12 has a 20-part keyboard:
10 number-keys and 10 keys with special functions

3.1 Keyboard

Key :
Keys * ... ) :
Keys /
F1 F2
Key O
:
Key
:
ESC
Key
:
Key
:
Key
:
OK
Key
:
MEM.
Key
:
Key
:
NULL
ZERO
Key S
:
In case the display shows the following, remove cu-
vette and then confirm with
tion mode by pressing
on the display.
In case the instrument shows the following display
(while in battery mode), the batteries need to be
changed or the PF-12 must be connected to an ex-
ternal power supply.
On / Off switch
For entering digits, letters, special characters
/ Double-function keys, for sample number, sampling loca-
:
F3
tion (alphanumeric) and dilution
For entering the decimal point, to select special methods menu
Abort-key, return to method selection
Scroll-mode up key
Scroll-mode down key
Enter key, Call up last result
Memory-key, call-up memory functions, store / not-store
results
Extinction programme-key, recall the extinction after
measurement, display additional information
Manual zero adjustment
Measurement key, consecutive measurements are
numbered continuously, Call up last test
or select the calibra-
OK
. Then follows the instruction
15