Hardware manual

Appendix
Agilent 7500 Series ICP-MS Hardware Manual A-9
10 Install the Spray Chamber.
11 Connect tubing between the Drain Tank and Exhaust Port on Backside
of 7500.
Adjustment of clamp tension for Drain tubing
1 Make sure the drain tubing is not damaged. Replace the drain tubing
when it is damaged.
2 Select Instrument >> Instrument Control.
3 Select Maintenance >> Sample Introduction.
4 Set Nebulizer Pump at 0.3 rps.
5 Set carrier gas flow to 1.0 and aspirate pure water.
6 Gradually loosen the knob applying pressure to the peristaltic pump
clamp for the drain until the peristaltic pump stops drawing up he drain
line. Gradually tighten the knob until the peristaltic pump begins to
draw up the drain line again. Continue to tighten the knob of the drain
uptake an additional 2- 3 turns.
• When no flow is observed in the drain line, readjust the clamp tension
for drain tubing or replace the drain tubing.
• There is normally liquid and air as shown above. When there is only
liquid, tighten the clamp an additional turn or reduce sample uptake
volume by decreasing the carrier gas flow.
WARNING
Confirm there is no leakage at all of the Drain Lines (e,g, outlet of Spray Chamber). If
there is leakage, there is increased a risk of explosion.
Drain Tubing
Flow Direction
Air Water Solution
(Peristaltic Pump)(Drain Vessel)