Setting analog output to an
external chart recorder
The external chart recorder output from the instrument is always 0 to 1 V, but the ab-
sorbance value for full scale deflection (AUFS) and the zero absorbance level on the
recorder can be set.
Display
Action
Step
Select menu Analog Out, press OK.
1
Select menu Set Range, press OK. The range is the
full scale absorbance range for the chart recorder (1
V).
2
Use the arrow keys to set the absorption range for
recorder output in AUFS, press OK. Only fixed steps
between 5.0 AUFS and 0.01 AUFS can be set and the
value is the same for all 3 wavelengths.
3
Select menu Set Zero Level, press OK. This value de-
termines where the zero absorbance level should be
in relation to full scale on the recorder.
4
Use the arrow keys to set the value and press OK.
5
The instrument has an automatic overrange function. If the monitor signal reaches the
full scale value on the recorder, the signal will instantly drop to 0 V and give an accurate
display of the peak starting from this position.
48
Monitor UV-900 Operating Instructions 28962214 AD
5 Operation
5.3 Menu selection and settings
