46
Calibration
4000 MiD® Instructions, V6695
Note:
If an oven is not available, place the vac-chip on a lint free tissue
and leave for few hours to dry completely
15.
The vac-chip is now clean and ready for use.
If the device looks visually degraded or you have any queries please con-
tact KNAUER before using the device.
9.9 Cleaning the vac-chip flange
The following procedure is the recommended cleaning procedure for
your vac-chip flange.
Caution
The vacuum screws have been specially made for the
MID. Do not substitute these screws unless they have been pro-
vided by the manufacturer.
Attention
Les vis à vide ont été spécialement faite pour le MID.
Ne pas remplacer ces vis, sauf qu’elles ont été fournies par le
fabricant.
Caution
The vac-chip is fragile. Always handle it with extreme
caution.
Attention
Le vac-chip est fragile. Toujours manipuler avec une
extrême prudence.
1.
Clean the vac-chip flange, especially the cone region (Fig. 47) using
HPLC grade water followed by HPLC grade Acetonitrile & HPLC gra-
de Methanol.
2.
It is recommend that a lint free cloth or cotton bud is used to clean
the cone region with each solvent, rather than immersing the whole
flange.
Fig. 33
Vac-chip flange and cone region
3.
Repeat until the cone region is clean
4.
Place the vac-chip flange in an oven at 40°C for 30 minutes to com-
pletely dry it.
5.
Once dry, remove the flange from the oven and flush with clean, dry
Nitrogen
Note:
If no oven is available, the flushing with Nitrogen and
leaving covered in tissue should be sufficient.
Procedure
entrance cone
vac-chip flange
