Hardware manual

Troubleshooting 5
Agilent 7500 Series ICP-MS Hardware Manual 5-17
1117 Error: Pirani gauge (IF) malfunction (Open).
There is a fault in the interface of the Pirani gauge or the System I/O Board
(When the instrument is changing from Standby Mode to Analysis Mode).
1118* Error: Vacuum pressure (IF) time out vacuum too high to open the
gate valve.
The gate valve cannot be opened because the vacuum pressure (IF) was not
managed lower than the limit within the prescribed time (When the instrument
is changing from Standby Mode to Analysis Mode).
Check the interface line pressure. The following causes are inferred.
• A drop of water was introduced into the vacuum chamber.
• The diameter of the hole in 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 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 fault in the interface of the Pirani gauge or the System I/O Board.
1118* Error: Vacuum pressure (IF/BK) time out vacuum too high to open
the gate valve.
The gate valve cannot be opened because the vacuum pressure (IF/BK) was not
managed lower than the limit within the prescribed time (When the instrument
is changing from Standby Mode to Analysis Mode).
Check the vacuum pressure (IF/BK). The following causes are inferred.
• A drop of water was introduced into the vacuum chamber.
• The diameter of the hole in 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 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 fault in the Pirani gauge (IF/BK) or the System I/O Board.
1119* Error: Vacuum pressure (IF) is too high to open gate valve.
The gate valve cannot be opened because the vacuum pressure (IF) exceeds the
limit or the vacuum pressure (IF) rose abnormally (When the instrument is
changing from Standby Mode to Analysis Mode).
Check the interface line pressure. The following causes are inferred.
• The diameter of the hole in the sampling cone is too big.
• The seal of the sampling cone is incomplete (Defective O- ring).