Under specific circumstances, it might occur that a portion of a peak is cut at top. This is caused by the signal being out of range of the current detector or A/D converter:
It is possible to indicate that a signal has reached a value out of the detector range via scheduling an event in the Event table. Such event needs to be triggered by the signal reaching a specific value, that is right below the detector maximum.
For that, set the event according to the following steps:
- Open the Method Setup and prepare the method as necessary (or open an already existing method).
- Switch to the Event Table tab.
- Fill in the first row of the table:
- Name (e.g., Signal out of range)
- Type - Input Run >
- Source - your detector or A/D converter
- Value - slightly below the maximum range
- Output Type and Output - based on your requirements, for example Abort.
Once the entered input value is surpassed, the specified output event is triggered. Suitable output events also include alarm activation, close a contact, etc.
Note:
Solvent peaks typically surpass the detector range. Consider the presence of a solvent peak in the sample before setting output events such as Abort, Skip vial, etc.