Thermo Scientific Thermo Scientific Vanquish VC-D40, Operating Manual

Page: 84 / 174

6 • Operation
Page 84 Variable Wavelength Detectors (VC-D40, VF-D40)
Operating Manual
6.5.1 Guidelines for Use of Flow Cells
NOTICE
Flow cells are sensitive to damage and contamination.
• Handle flow cells with care. See Guidelines for Handling Flow Cells
( } page 115) .
• Observe the guidelines below when operating the detector.
Operating conditions
Observe the specified maximum pressure limit for the flow cell. See the
specifications for flow cells in
Flow Cells (
}
page 152) .
Interrupted operation
If the pump flow is interrupted, take appropriate measures to protect
the flow cell:
• Turn off the UV lamp or close the shutter to protect the flow cell
from the light of the UV lamp. UV radiation from the lamp may
damage the flow cell.
• Never leave any substances in the flow cell without flow. Particularly
avoid leaving any aggressive solvents in the flow cell for a longer
time.
• Without flow, air bubbles in the flow cell can accelerate the
deposition of substances. Never leave air bubbles in the flow cell. If
the pump flow is stopped for a longer time, fill the flow cell with a
high purity solvent, for example isopropanol.
Troubleshooting flow cells
• If a flow cell leaks, stop the pump flow, remove the flow cell from
the detector as quickly as possible, and replace the flow cell.
• For information about how to clean a flow cell, see Cleaning the
Flow Cell ( } page 115) .
Storage and shipment
• Always keep unused flow cells in their original dust-free packaging.
• When shipping the instrument, remove the flow cell and install the
diagnostic cell to protect the flow cell opening. The flow cell must be
shipped in its original packaging.
See also
2 Removing the Flow Cell ( } page 116)
2 Installing a Diagnostic Cell ( } page 118)