- Home
- Companies
- Particle Measuring Systems (PMS)
- Articles
- Calibration and Spectrum ...
Calibration and Spectrum Troubleshooting: Troubleshooting Abnormal IMS Spectrums (Series Part 4 of 4)
Courtesy of Particle Measuring Systems (PMS)
Outside of calibration activities, the IMS Spectrum is used to troubleshoot functional problems with AirSentry II analyzers.
Possible indicators include:
Contaminated CDA
- A double spectrum peak or bump before the dopant peak is seen while sampling CDA.
- The dopant (reactant) peak is less than 500 bins high.
- The dopant peak is broad.
- A wide, double peak is seen (Acids analyzers only).
Some of these issues can be fixed easily with a filter replacement. Download the full paper to learn more.
Incorrect Dopant Temperature
- Target and dopant peaks have very different bin heights at 25 ppb.
- If the dopant peak is smaller, the dopant temperature is too low.
- If the dopant peak is larger, the dopant temperature is too high.
Dopant temperature adjustment should be adjusted to a specified range only by Particle Measuring Systems.
Blocked Orifice/Shutter Grid Malfunction/Missing Dopant
- No visible peaks seen in the spectrum.
Incorrect Carrier Gas in Acids/Chlorides
- A very “noisy” spectrum is seen with no obvious peaks (Acids or Chlorides analyzers only).
Out of Spec Pressure in CDA, Vacuum or Sample Flow
- Peak is too far to the left or right.
Our service technicians are trained to assist with all functional issues.
-
Most popular related searches
Customer comments
No comments were found for Calibration and Spectrum Troubleshooting: Troubleshooting Abnormal IMS Spectrums (Series Part 4 of 4). Be the first to comment!