16
Installation and initial startup
AZURA® Detector DAD 6.1L, DAD 2.1L, MWD 2.1L Instructions, V6700
4.6 Connecting the capillaries
Capillaries connect the detector with the column and waste or more sub-
sequent operating detectors. For the LightGuide flow cell connectors, we
recommend PEEK capillaries and PEEK fittings.
The flow cell was inserted.
Screw-type cap fittings and cap fittings were removed.
Note:
The KNAUER LightGuide flow cell cartridges have unisex input and
output connections.
Component defect
Damage to components due to excessive tightening possible.
Observe the torque of the screw connection
Use 5 Nm torque for stainless steel fi ttings.
Use 1 Nm torque for PEEK fi ttings.
Process
Steps
Figure
1.
Push the capillary
1
through
the fitting
2
.
2.
Slide the lock ring
3
over the
tubing. Note that the tapered
end of the lock ring has to
point to the seal ring
4
.
3.
Attach the seal ring
4
.
2
1
3
2
4
Fig. 12
Capillary fittings
4.
Fasten the capillary at the
flow cell
4
fingertight.
4
4
Fig. 13
Flow cell with capillary
Bring the device into operation.
Using the PEEK fittings
PEEK fittings withstand a maximum pressure of 400 bar. Note the torque
of 0.5 Nm.
Prerequisites
1
3
2
4
Next step
