Hardware manual

5-28 Agilent 7500 Series ICP-MS Hardware Manual
5 Troubleshooting
1200 Error: Shunt capacitor time out, did not reach desired value.
The Shunt capacitor was not controlled properly. Setting could not be done
within the prescribed time.
Check the operation of the Shunt capacitor. The following causes are inferred.
• Defective drive mechanism of the Shunt capacitor, such as loosened screws.
• Defective potentiometer to detect the position of the Shunt capacitor.
• Fault in the wiring of the Shunt capacitor drive motor or the potentiometer.
• Faulty MNBXYZ Board.
1201 Error: Series capacitor time out did not reach desired value.
The Series capacitor to control was not managed properly. The setting could
not be done within the prescribed time.
Check the operation of Series capacitor. The following causes are inferred.
• Defective drive mechanism of the Series capacitor, such as loosened screws.
• Defective potentiometer to detect the position of Series capacitor.
• Fault in the wiring of the Series capacitor drive motor or the potentiometer.
• Faulty MNBXYZ Board.
1202 Error: RF reflected power time out, did not get below pre match
limit.
The Plasma RF reflected power does not go below the limit (When the
instrument is changing from Standby Mode to Analysis Mode).
Check the plasma RF reflected power. The following causes are inferred.
• The installation of the torch, bonnet, and shield plate is faulty.
• The limits of the tuning parameters for RF Matching are inappropriate.
• The limits of the system parameters for the Shunt condenser and the Series
condenser- related items are inappropriate.
• The Plasma RF cable came off or the cables are defective.
• Malfunction of Shunt condenser and the Series condenser (Faulty XYZMN
Board is also probable).
1203 Error: Plasma did not come ON.
The Plasma did not ignite (When the instrument is changing from Standby
Mode to Analysis Mode).
Check the plasma RF forward power and reflected power, argon gas line
pressure, and flow rate. The following causes are inferred.
• The installation of the torch, bonnet, and shield plate is faulty.
• The work coil position is mis- aligned (refer to page 4- 58).
• Argon gas is not supplied or there is a leak in the gas line.
• The air is mixed with argon gas.
• The limits of the tuning parameters for the RF Matching are inappropriate.
• The limits of the system parameters for the Shunt condenser and Series
condenser- related items are inappropriate.