Hardware manual

5-20 Agilent 7500 Series ICP-MS Hardware Manual
5 Troubleshooting
Check the pressure of the analyzer chamber and the interface line. The
following causes are inferred.
• The orifice of the sampling cone is too big.
• The seal the sampling cone is incomplete (Defective O- ring).
• The plasma is too far from the sampling cone.
• The diameter of the hole in the skimmer cone is too big.
• The installation of the skimmer cone and skimmer base is incomplete.
• The installation of the ion lenses is incomplete.
• The power of the rotary pump is not connected or the breaker is OFF.
• 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).
• The vacuum pressure (AN) cannot be measured correctly due a failure in
the Penning gauge.
1125 Error: Penning gauge (AN) malfunction.
The Penning gauge is working abnormally (When the instrument is changing
from Standby Mode to Shutdown Mode).
1126 Error: Penning gauge (AN) malfunction.
The Penning gauge is working abnormally (In Standby Mode).
1127 Error: Vacuum pressure (AN) is too high to stay in Standby mode.
Standby mode cannot be maintained because the vacuum pressure (AN)
exceeds the limit or the vacuum pressure (AN) rose abnormally (In Standby
Mode).
Check the pressure of the analyzer chamber. The following causes are inferred.
• The vent valve is not closed or the seal is incomplete.
• The cover of the vacuum chamber is not closed or the seal is incomplete.
• The power of the rotary pump is not connected or the breaker is OFF.
• 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).
• There is a leak in the gate valve.
• The vacuum pressure (AN) cannot be measured correctly due to a fault in
the Penning gauge.
• There is a fault in the turbomolecular pump.
1128 Error: Penning gauge (AN) malfunction.
The Penning gauge is working abnormally (In Analysis Mode).
1129 Error: Vacuum pressure (AN) is too high to stay in Analysis mode.
The Analysis mode cannot be maintained because the vacuum pressure (AN) is
below the limit or the vacuum pressure (AN) rose abnormally (In Analysis
Mode).