SITA Messtechnik GmbH - Operating Instructions SITA ConSpector
6.2 User-defined output – ContLevel
The operating mode ContLevel differs from FluoLevel by a base value correction. The ContLevel
corresponds to the measured fluorescence intensity in RFU (see measuring principle) minus a pre-
viously set or measured base value of the basic fluorescence of a clean bath approach.
ContLevel = measured RFU - base value (clean bath)
The profile parameters can be set via the Param menu or Menu>Profiles>Edit.
Parameter structure:
Param target temp. mode
Activates/deactivates monitoring of the selectable target temperature.
Target temp.
Selection of the selectable target temperature (-50 °C...150 °C)
Tolerance
Selects the permitted tolerance of the target temperature
Exit
Exits the menu
Alarm
Defines the alarm limits (Alarmbar Max)
Warning
Defines the warning limits
Sets the base value of the basic fluorescence of a clean bath
More
parameters
Average
Internal device averaging (Standard setting 3 advised)
Save
Save automatically (Auto), ask for saving (Ask) or save Off (Off).
The fluorescence is temperature-dependent. The temperature should be
the same when determining the basic fluorescence/baseline value and
during the subsequent routine sample control. You can reach the tempera-
ture monitor via the software key Temp in the main display.
Base value:
You have the option of setting the base value manually in the "Parameters" menu or measuring it
in a bath sample. When you measure it, it is recommended to use the stand and the stainless steel
beaker and lid. Make sure that the sample temperature is correct.
If during the measurement the display shows "Error! Overrange!" appears on the display, base
value correction is cancelled and the old base value is retained.
This may be due to the following reasons:
• The sensor is exposed to direct sunlight or excessive ambient light. The photo diode in the sensor
head is in overrange.
Only use clean bath samples for the base value correction.
• There is a highly fluorescent substance in the process bath. The detector overrides due to the
high intensity of the fluorescence.
Only use clean bath samples for the base value correction.
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