Q150T S/E/ES Sample Preparation System Instruction Manual

7.2.1 Shaping Carbon Rods
Q150T Sample Preparation System
WARNING
It is essential that you shape the tips of the carbon rods to the correct
profile to minimise the possibility of damage to the instrument due to
excessive currents.
We recommend that you shape the rods so that one is sharpened to 1.4mm diameter x
5mm long and the other is flattened as shown in Figure 7-4.
Figure 7-4. Recommended Carbon Rod shapes
The accessory pack contains a rod shaper (see Figure 7-5) that will accept 3mm and
6mm rods. To enable the shaper to accept 6mm rods, remove the collet by unscrewing
the collet screw and pulling the collet out.
Insert rod
Collet
Figure 7-5. Carbon Rod Shaper (S8650/S8651))
To shape a carbon rod:
Thumbscrew Dimple
1. Cut a 50mm length of rod.
Use only Quorum rods due to the varying diameter and quality of other
manufacturer’s rods. Quorum supply rods in two sizes: 3mm (C5422)
and 6mm (C5423).
2. Hold the shaper stationary and insert the carbon rod from the bottom to half way
through the window, as indicated by the dimple at the bottom of the hole.
3. Gently tighten the thumb screw to hold the carbon rod in place.
4. Holding the shaper body and, with
very little force, gently turn the
black knob on the end of the shaper
clockwise (when viewed face on).
5. Keep turning the knob until the tip
of the rod touches the other side of
the hole in the cutter as shown
opposite. Clear the carbon rod dust
as necessary.
6. Undo the thumb screw and
withdraw the rod carefully to avoid
damaging the newly formed tip.
Cutters
Collet screw
Shaper body Black
knob
10473 - Issue 3 52 Q150T - Instruction Manual