500 D 01/2012
6a
3. Operation
3.1 Keyboard
The photometer
NANOCOLOR
®
500 D
has a 20-part keyboard: 10 numbers
and 10 keys with special functions. The
whole field is covered with plastic foil and
therefore protected against liquid spills.
Tactile feedback for all keys increases
safety of operation.
Explanation of individual keys
Key
On/Off switch of the photometer
Keys
*
...
)
For entering digits, letters or special characters
Keys
F1
/
F2
/
F3
Double-function keys, for sample number, sampling location
(alphanumeric) and dilution
Key
For entering the decimal point
method selection for special methods
Key
ESC
Key for interrupt and return to method selection
Key
U
Roll-mode upward key
interrupt of the automatic program sequence / method selec-
tion / call up previous submethod / next program step / previ-
ous sampling location etc.
Key
U
Roll-mode downward key
interrupt of the automatic program sequence / method selec-
tion / call up next submethod / previous program step / next
sampling location etc.
Key
OK
Enter key, for confirming any input, for confirming selected
functions, after measurement call-up of correction measure-
ment
Key
MEM.
Key for calling up memory functions, for manually storing or
suppressing the storage of recorded measurement values
Key
Call-up key for the extinction program, recalling the extinction
after measurement, display of additional information
Key
NULL
ZERO
Manual zero adjustment
Key
S
Measurement key
The result is displayed. Consecutive measurements are
numbered continuously.
