Hardware manual

Troubleshooting 5
Agilent 7500 Series ICP-MS Hardware Manual 5-45
Alarm Messages
The following alarm messages can appear in the MassHunter Workstation (and
ChemStation) green message bar when you operate the Agilent 7500. When an
alarm message is displayed, the instrument runs a safety sequence.
2150* Warning: Interface Vacuum is too low.
The interface line pressure is below the limit (In Analysis Mode).
Check the interface line pressure. The following causes are inferred.
• The orifice of the sampling cone is too small or clogged.
• The orifice of the skimmer cone is too small or clogged.
2150* Warning: Vacuum (IF/BK) is too low.
The vacuum pressure (IF/BK) is below the limit (In Analysis Mode).
Check the vacuum pressure (IF/BK). The following causes are inferred.
• The orifice of the sampling cone is too small or clogged.
• The orifice of the skimmer cone is too small or clogged.
2151* Warning: Interface Vacuum is too high.
The interface line pressure exceeds the limit (In Analysis Mode).
Check the interface line pressure. The following causes are inferred.
• The orifice of the sampling cone is too big.
• The seal of the sampling cone is incomplete (Defective O- ring).
• The plasma is too far from the sampling cone.
• The rotary pump oil level is low or the oil is dirty.
• The vacuum tubing has failed (the tubing is off, or a leak is caused by an
incomplete seal such as a pin hole or a defective O- ring). A drop of water
was introduced into the vacuum chamber.
2151* Warning: Vacuum (IF/BK) is too high.
The vacuum pressure (IF/BK) exceeds the limit (In Analysis Mode).
Check vacuum pressure (IF/BK). The following causes are inferred.
• The orifice of the sampling cone is too big.
• The seal of the sampling cone is incomplete (Defective O- ring).
• The plasma is too far from the sampling cone.
• The rotary pump oil level is low or the oil is dirty.
• The vacuum tubing has failed (the tubing is off, or a leak is caused by an
incomplete seal such as a pin hole or a defective O- ring). A drop of water
was introduced into the vacuum chamber.
2152 Warning: Analyzer Vacuum is too high.
The vacuum pressure (AN) exceeds the limit (In Analysis Mode).
Check the vacuum pressure (AN). The following causes are inferred.