This Information Applies To: Agilent ICP-MS systems (7700/7800/7850/7900/8800/8900)
Error messages related to temperature can cause the plasma to shut off or disable plasma ignition. While a warning message will still allow the plasma to light and stay on, it is necessary to correct the issue.
The troubleshooting procedure in this article is applicable for the following warnings/errors:
Temperature warnings or errors can be due to insufficient exhaust flow, improper room temperature, insufficient air circulation, or dust accumulation on the back of the ICP-MS.
It is useful to view the Internal Temp and Inlet Temp meters when troubleshooting. See the article: How to Select Meters in ICP-MS MassHunter Software.
The Internal temperature is also referred to as the Inside temperature.
Steps to Follow
Warning: The exhaust system must remain on always while the ICP-MS is powered on in Analysis mode, Standby mode, and Shutdown mode. The next step instructs you to remove the exhaust hose from the ICP-MS, so the ICP-MS system must be powered off before proceeding!
Disconnect the exhaust hose from the chimney of the ICP-MS.
Use an anemometer to measure the exhaust flow from the base of the exhaust hose.
Compare the measured exhaust flow with the specifications in Figure 1.
If the exhaust flow is within specifications, continue to step 3.
If the exhaust flow is outside specifications, work with your facilities team to increase the exhaust flow, power on the ICP-MS and retest.
|Port Diameter (mm)||Exhaust flow|
Use a thermometer to measure the room temperature at the location of the ICP-MS.
Compare the measured temperature with the specifications in Figure 3.
If the temperature is outside specifications, work with your facilities team to correct the room temperature and retest.
Light the plasma and monitor the room temperature change near the ICP-MS over time. Insufficient air circulation can cause the temperature near the ICP-MS to rise.
Compare the measured temperature change with the specifications in Figure 3.
If the temperature change is outside specifications, work with your facilities team to correct and retest.
|Room Temperature||15 to 30 °C (59 to 86 °F)
< 2 °C/h change and total change should be < 5 °C
Learn how to effectively troubleshoot your Agilent ICP-MS System:
Agilent 7800/7850/7900 ICP-MS with MassHunter e-learning course available from Agilent education