
1100 Series DAD and MWD Reference Manual 125
Repairing the Detector 4
11 Re-install the flow cell and connect the capillaries to the
union holder.
12 Perform a leak test with the flow cell outside of the
detector.
13 If no leak is observed, install the flow cell and you are
ready to work.
14 Make sure that the flow cell assembly is inserted correctly
and fits perfectly in the optical unit (especially when PEEK
capillaries are used).
IN
OUT
NOTE
The cell body can be fitted in two positions to allow the capillaries routed upwards or
downwards (depending on where the column is located). Route the capillaries directly
column (inlet) and waste assembly (outlet).
NOTE
With the instrument accessory kit comes a 4-mm wrench and with the Sealing Kit a special
adapter. Both together work as a torque wrench with pre-defined torque (maximum
allowed torque for the cell fittings is 0.7 Nm). It can be used to tight the capillary fittings at
the flow cell body. The wrench has to be plugged into the adapter as shown in Figure 30.
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