Starting From Standby Mode - Agilent Technologies 7500 ICP-MS Operator's Manual

Agilent 7500 ICP-MS ChemStation Operator's Manual
Startup, Shutdown and Status

Starting from Standby Mode

The following instructions assume that the instrument is in Standby mode and the
analyzer vacuum chamber is evacuated to a partial or high vacuum. See "Starting
from Shutdown Mode" to evacuate the vacuum chamber.
The plasma is off when the Agilent 7500 is in Standby mode. At this point the
Plasma can be switched on. Once the interface vacuum has reached 4.5 x 10
the plasma is on, the instrument will switch to Analysis mode and you can perform
tuning and sample analysis. To start the instrument from Standby mode, complete
the following steps:
1 Ensure that the instrument is in Standby mode.
The title bar shows that the instrument is in the Shutdown mode. Also the LED on
the top cover displays an orange light. (A blinking orange LED indicates that the
mode is changing).
2 Close the hoods.
Close both the hoods tightly. The safety function is tripped if either hood is open.
The plasma will not ignite and go to the analysis mode if the covers are open.
3 Ensure that the vent's air flow is acceptable.
The exhaust air flow should be 5 m
"Agilent 7500 ICP-MS Hardware Manual", for information on "Checking the
Exhaust System".
4 Supply the instrument with cooling water and argon gas.
The cooling water chiller must be turned on.
The primary argon gas pressure should be:
100 ± 2.8 psi (700 ± 20 kPa)
5 Ensure that the drain vessel is empty.
See Chapter 2, "Precautions" in the "Agilent 7500 ICP-MS Hardware Manual", for
information on emptying the drain vessel.
6 Ensure that the gas tubing is not pinched and that the torch box and sample
introduction gas connections seal correctly.
Check the gas tubing and make adjustments if necessary. See Chapter 4,
"Maintenance" in the "Agilent 7500 ICP-MS Hardware Manual", for information
on connecting the gas hoses.
7 Insure that all peristaltic pump (peripump) tubes are in good condition and
correctly clamped into the peristaltic pumps.
3
/min. See Chapter 2, "Precautions" in the
2
Pa and
3-9