57Troubleshooting
Troubleshooting
Problems and Possible Solutions
Problems Possible Cause Possible Solutions
Recoveries are low Hold time not long enough Increase hold time by 1:00
Incorrect Temperature Increase temperature by 10 °C or decrease by 10 °C for
temperature sensitive analytes
Water in the extract Wet Sample Increase drying agent
Possible System Clog Slow sample draining Increase pore size of Q-Disc. For cellulose, increase C#
Mix dry samples with sand to disperse sample
Q-Cup(s) overlled Clean the actuator. See “Routine Maintenance” for instructions. See
“Sample Preparation” for preventative measures.
Solvent/Extract Recovery low Solvent Bottle(s) empty Add solvent
Slow sample draining Increase pore size of Q-Disc. For cellulose, increase C#.
Mix dry samples with sand to disperse sample
Particulates in extract Porosity of samples less than
Q-Disc
Decrease pore size of Q-disc. For cellulose, decrease C#
Q-Cup sticking to actuator Q-Cup(s) dirty Clean the Q-Cups. See “ for instruction
Q-Cup(s) overlled Clean the actuator. See “Routine Maintenance” for instructions. See
“Sample Preparation” for preventative measures
Max Pressure Exceeded Pressure generated at
temperature exceeds maximum
system pressure
Decrease method temperature or decrease amount of sample
Clog Check
1. Select System Menu icon located in the lower right corner of the screen.
2. Select Tools.
3. Select Utilities.
4. Select Clog Check Start.
5. A screen will appear with a list of locations to check for a clog: Vent, Drain, Cooling coil/dispense needle.
Select “OK” to begin clog check.
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