Hardware manual

4-64 Agilent 7500 Series ICP-MS Hardware Manual
4Maintenance
Clean the Ignition Terminal and Shield Contact Area
Before installing the shield torch, clean the metallic surface that contacts the
torch mounting assembly ignition terminal and shield plate as necessary.
1 Moisten a cotton swab with methanol (HPLC grade).
2 Wipe the metallic surface that contacts the ignition terminal and shield
contact plate.
Installing the ShieldTorch System
To install the ShieldTorch, complete the following steps:
1 Place the torch in its holder.
With the auxiliary gas fitting on top of the torch, carefully slide its open end
inside the work coil and at the same time align the projection for the torch
stand into the torch stand hole. Refer to Figure 58 showing how the
projection for torch stand aligns with the torch stand hole. The end of the
middle, or auxiliary, tube will be 1 to 2 millimeters from the top of the work
coil, as shown in Figure 64. Close the quick- release clamp over the torch.
Figure 64 Position of Torch Inside Work Coil
NOTE
When you place the torch with auxiliary gas fitting on the top, the projection on the torch
for the shield plate faces down. It is important that a part of the shield plate contacts the
metal plate on the torch holder.
1~2 mm