LC Packings Probot 161403, User Manual

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Maintenance and Troubleshooting
User’s Manual Probot
D960R3
3-7
To replace the fused silica needle fractionation needle:
a) Remove the fluidic connections on the upper and right µ-Tee, remove the
ground cable.
b) Unscrew the mounting screw (item 5, FIGURE 3-2) and remove the µ-Tee
from the mounting plate.
c) Remove the lower nut from the µ-Tee and take the fused silica needle out of
the stainless steel needle.
d) Put the replacement fused silica needle with the short (10 mm) PEEK sleeve
around it through the stainless steel needle starting at the ferrule side. Let
the PEEK sleeve and fused silica needle protrude for approximately 2 mm
(FIGURE 3-7).
Ferrule with Nut
Fused Silica
Needle
Stainless Steel
Needle
PEEK Sleeve,
330 µm I.D.
µ-Tee
1
2
3
4
2 mm
1
2
3
4
P/N 162146
30 µm: P/N162144
100 µm: P/N162145
P/N 162147
FIGURE 3-7 Fused Silica Fractionation Needle with Stainless Steel Supporting Needle
e) Connect the nut to the µ-Tee to tighten the fused silica needle.
f) Connect the fused silica column / UV flow cell outlet and the connecting
tubing from the rotary valve to the µ-Tee.
g) Mount the µ-Tee on the Probot mounting plate with the mounting screw and
connect the ground cable.
TABLE 3-3 Replacement Parts for the µ-Tee Assembly
Part Number Description
162144 30 µm I.D. fused silica needles for Probot™ µ-Tee for
matrix addition (3 pcs.)
162145 100 µm I.D. fused silica needles for Probot™ µ-Tee for
matrix addition (2 pcs.)
162146 PEEK sleeves for Probot™ µ-Tee for matrix addition,
330 µm I.D., 4x 30 mm and 3x 10 mm
162147 Needle and ferrule for Probot™ µ-Tee for matrix addition
162148 Connecting tubing Probot™ rotary valve to µ-Tee