
Maintenance and care
multi N/C pharma UV
74
5.
Adjust position 1.
To adjust the x and y positions, remove
the sample tube and move to the
position. Place the stirrer onto the
sample tray in this position. If it is at the
center of the position, the position is
correctly adjusted.
The y value may not be smaller than 33 mm
to ensure correct operation.
To adjust the z position, place the
sample tube with screw closure and
septum cap (e.g., EPA sample tube) into
the sample tray.
Adjust the special needle in the z
direction until approx. 2 mm of the
ventilation slot are visible above the
septum.
The ventilation slot must be above and below the septum, otherwise the pressure
compensation within the sample tube cannot be guaranteed.
6.
Adjust the rinse position.
Adjust the x and y positions until the cannula is at the center of the wash cup.
In the z direction the special cannula may only dip low enough for the
ventilation slot to be visible at the top edge of the wash cup.
7.
After each change of the x/y/z direction, click the [R
INSE POSITION ADJUST
] or
[P
OSITION
1
ADJUST
]
button.
The autosampler will then move to the new coordinates. Repeat this step until the
cannula position is optimal.
8.
Click [S
AVE
].
The adjustment values will be taken over.
9.
Open the A
LIGNMENT SAMPLER
window again and move to the selected position or
any measuring position to check the alignment.
7.3
Replacing the water traps
ATTENTION
Replace the water traps dependent on the sample matrix, but no later than after 6
months.
Always replace all water traps! The water traps only serve their function if they are
inserted in the order and installation direction specified!
The two water traps (TC pre-filter, disposable retention filter) on the front of
multi N/C pharma UV are installed between the cooling block and the halogen trap.
They protect the MFM (mass flow meter) and the detector from aerosol and rising
water.
Water traps on the front
of multi N/C pharma UV
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