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6.2. Preferences
Here can be optimized detector functions to satisfy any user needs.
6.2.1. Lamp
In each sub menu can be set used lamps, method of their start and eventual preheating.
6.2.1.1.
Lamps Use
The unit can be set (only model ECD2800) so, that BOTH LAMPS (deuterium and tungsten
lamp) are always on, or only deuterium lamp (ONLY DEUTERIUM (D2)) and/or only tungsten
lamp (ONLY TUNGSTEN (W)).
6.2.1.2.
Preheat Time
Preheating of lamp is performed at first start of light sources after unit start, because of
highest possible accuracy of followed first optical calibration of the unit. Default value is 10 s.
The preheat time can also be used for enforcement of general stabilization of the unit before
measurement. It is not possible to perform measuring before lamp is preheated. Preheating can be
skipped using key ESC.
6.2.1.3.
Auto Turn On Mode
The unit can be set in a mode that immediately after unit start the light sources are
automatically turned on. In mode OFF the lamps are not turned on after unit start, in mode ON the
lamps are started automatically. Default value is OFF.
6.2.2. Cell Temp
This mode is not used so far.
6.2.3. Display
6.2.3.1.
Brightness
The display brightness can be set in eight levels, where value 8 is maximum brightness.
6.2.3.2.
ABS Units
Units displayed can be set to AU, mAU and mAU without initial digits (mAU ZEROS
SUPPRESSION). This setting does not influence analogue nor digital output.
Absorbance is measured in relative absorbance units. It does not refer to 1 cm optical path
length. Absorbance measuring range is <−0.2; 4.0> AU for negative dynamic range NORMAL and
<−0.8; 3.0> AU for negative dynamic range HIGHER. It can be set in Menu/Preferences/signal.
6.2.3.3.
ABS Precision
For setting number of displayed digits of absorbance.
6.2.4. Sound
Sound signals of the unit can be set as follows:
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ECD2800 / ECD2600
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