Care and maintenance
contrAA 600
Edition 01/2014
73
CAUTION! RISK OF FRACTURE!
Set the canula height for them to terminate 1-2 mm above the block with the wash and
mixing cup.
5.
Plug the sample intake tube onto the thinner canula. Plug the dosing tube for the diluent
onto the thicker canula.
7.7.3
Replacing the intake tube
If the intake tube is contaminated, it must be replaced.
1.
Pull off the intake tube from the thinner canula at the autosampler arm and then from
the nebulizer canula.
2.
Cut a new tube to the required size and attach it on both canulas.
7.7.4
Replacing the tube set for diluent and washing liquid
1.
Pull the dosing tube for diluent off the thicker canula at the autosampler arm and feed it
through the tube guide.
2.
Detach the tube for the washing liquid at the rear of the autosampler.
3.
Pull the encased tubes out of the attachment lug at the rear of the autosampler.
4.
Pull the tube for the washing liquid off the storage bottle.
5.
Unscrew the dosing tube from the change-over valve.
6.
Screw the new tube set with dosing tube (marking "1") to the change-over valve and
attach the encased tubes with the attachment lug to the rear of the autosampler.
7.
Insert the tube with the marking "2" into the storage bottle for the washing liquid.
8.
Screw the tube for the washing liquid to the rear of the autosampler.
9.
Slide the other end of the dosing tube through the tube guide onto the thicker canula of
the autosampler arm.
7.7.5
Clean-up after cup overflow
If during the process the washing cup or mixing cup (with AS-FD) has overflowed, immedi-
ately interrupt the process and clean the device.
1.
Stop the measuring process immediately.
2.
Take up the liquid with cellulose wadding or cloth. Wipe the surface dry.
3.
Washing cup:
Ensure that the outlet can be drained, i.e., remove any sharp bends in the
draining tube or make sure that the draining tube does not dip into the liquid in the
waste bottle.
Mixing cup (only for AS-FD):
Use
to open the
Autosampler
window. Change to the tab
Function tests
.
In the area
Pumps
enable the checkbox
Mix cup pump
to start the pump.
Run the pump until the liquid has been drained off.
Disable the checkbox
Mix cup pump
, to stop the pump.
