1124   Error: Vacuum pressure (AN) time out.  Vacuum is too high to enter Analysis mode.

Vacuum pressure (AN) is not below the limit within the prescribed time. Therefore, the instrument could not transit to Analysis Mode (When the instrument is changing from Standby mode to Analysis Mode).

Check the pressure of the analyzer chamber and the interface line for the following possible issues.

• The orifice of the sampling cone is too big.
• The seal of the sampling cone is incomplete (Defective gasket).
• 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 Plate Bias lens is incomplete.
• The power of the foreline pump is not connected or the breaker is OFF.
• The foreline 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 Ion gauge.