Thermo Scientific VF-F20-A, Operating Manual

Page: 214 / 240

8
•
Troubleshooting
Page 214 Integral Fraction Collector FT (VF-F20-A) Operating Manual
10. Then switch the fraction collection valve to flush position, flush the
internal surface of flush buffer loop, needle capillary and needle into
the needle wash port at the maximum pump flow rate for
approximately 1 minute.
11. Then switch the fraction collection valve to waste position, flush the
waste line at the maximum pump flow rate for approximately 1
minute. Afterward, turn off the pump flow.
12. Restart the device with its main power switch. The device performs
a self-test. The needle initializes and adjusts its position.
13. Afterward, turn off the pump flow.
8.3.3 Temperature Setpoint Cannot Be Achieved
Causes
•
The ambient temperatures may be out of specified range.
•
The Fraction collector compartment may not be insulated
sufficiently.
Remedial Action
Check if the door is closed properly.