Operating instructions

6. Maintenance page 67
Mercury Instruments UT-3000-E_V2.11.docx 31.07.12
Analytical Technologies
6.4 Troubleshooting
6.4.1 Unusual Measuring Peaks
An example for a non-typical peak is shown in the picture below.
The peak is more of triangular shape and the signal drops to negative values after the peak.
Figure: Example for an non-typical desorption peak
The reason may be precipitation in the tubing at the outlet of the GoldTrap (= tubing which
connects GoldTrap and optical cell, see picture below).
In this case it is recommended to replace the contaminated tubing.
Figure: Tubing at outlet of GoldTrap. The arrow indicates the
position where precipitation might occur.