Operating instructions

Charged Aerosol Detectors
Corona Veo and Corona Veo RS
Page 50 Operating Instructions
5.3.3 Run Mode Menu
From the Main Menu, press the Run Mode soft key to open the Run Mode Menu with the
available functions and parameters. Use the Run Mode Menu to make real-time
adjustments to instrument settings. Changes made on the Run Mode Menu screens will not
alter the internal memory of the detector.
Fig. 8: Run screen (here: Corona Veo RS)
If the gas is not turned on yet, the detector will automatically start the gas flow when you
press the Run Mode soft key in the Main Menu.
The following functions and parameters are available in the menu. Select the desired
parameter and adjust as required.
Parameter Description Options Default Setting
Current Detector signal during data
acquisition
read-only ---
Full Scale Percent offset added to the analog
output of the detector
-50 % to +50 % 0 %
Filter Digital filter constant that is applied
to output current.
Filter time constants:
0.1, 0.2, 0.5, 1.0, 2.0,
3.6, 5.0, 10.0 seconds
5.0 sec.
Power Function Data linearization function 0.67 – 2.00 1.00
SSV Position Position of the stream-switching
valve
Nebulizer, Diverted Nebulizer
Range Set the signal current range for the
analog output of the detector
1 pA to 500 pA
(in steps of 1, 2, and 5)
100 pA
RUN MODE
Current = 0.000 pA
Full Scale = -0 %
Filter ( 5.0 sec)
Power Function ( 1.00 )
SSV Position = Nebulizer
Range (100 pA)
Auto Zero
Diagnostics
Exit
Graph
Evap T