Hardware manual

Maintenance 4
Agilent 7500 Series ICP-MS Hardware Manual 4-17
3 Installing tubes on the peristaltic pump.
1 Connect a sample tube from both ends of the pump tube.
2 Referring to Figure 34, install the combined tube in the peristaltic pump.
Based on the direction of the peristaltic pump rotation, hang one stopper
on the pump. Stretch the tube to bring it into close contact with the
roller and hang the other stopper on the pump.
3 Clamp the tubes in place.
4 Adjusting clamp tension.
From the Instrument Control window, select Maintenance>>Sample
Introduction. (Figure 35). Allow the peristaltic pump (Nebulizer Pump in
the PeriPump area in Figure 35) to draw up pure water by setting the speed
to about 0.1 rps. Gradually loosen the knob applying pressure to the
peristaltic pump clamp until the peristaltic pump stops drawing up water.
Gradually tighten the knob until the peristaltic pump begins to draw up
water again. Continue to tighten the knob of the sample uptake clamp an
additional 1 - 2 turns, and tighten the knob of the drain tube clamp 2 - 3
turns.
Figure 35 Sample Introduction Maintenance dialog box
NOTE
The order of the pump tubing is “sample tube,” “internal standard tube,” and “drain tube”
from the outside (from left to right).
The peristaltic pump rotates in the direction of the arrow sticker.