Hardware manual

Precautions 2
Agilent 7500 Series ICP-MS Hardware Manual 2-3
NOTE
To shut down the instrument quickly, turn OFF the power switch located on the lower right
side of the front panel. To switch the instrument to Standby mode and/or Shutdown mode
without using MassHunter Workstation (or ChemStation), a “Plasma Off Switch” and
“Shutdown Switch” are available on the instrument top cover.
CAUTION
• A sensor monitors the radio frequency (RF) generator and shuts it down if it is
improperly matched to the work coil.
• A fiber-optic sensor shuts off the RF high voltage power whenever the plasma is not
present or is turned off manually.
• The Agilent 7500 MassHunter Workstation (or ChemStation) displays warning
messages in its green status line when the sensors first detect a problem, enabling
you to stop work before the shutdown limits are reached.
• The parameters displayed in the instrument control window change from green to
yellow/red as the shutdown limits are approached/reached. However, some
parameter windows do not change color when the value reaches the shutdown
limit.
In addition to the above safety features, the following precautions should always be
taken during operation or maintenance of the Agilent 7500:
• Check acid concentration. Continuous aspiration of a highly concentrated acid
might attack the inside of the instrument. Refer to the Agilent 7500 Series ICP-MS
Tuning and Application Handbook for more detail on acid concentration.
• Close the instrument hoods and panels before operation.
• Check the exhaust system for a positive extraction at the exhaust duct.
• Handle solvents correctly.
• Check the drain vessel frequently.
• Store argon safely.
• Wait for the instrument to cool before performing any maintenance operation.
• Check the condition of the pipes, replace as needed.
Pay close attention to the cautions and warnings within this manual and the Agilent
7500 Series ICP-MS MassHunter Workstation Operator's Manual (or ChemStation
Operator's Manual).