Thermo Scientific Surveyor PDA Plus, Hardware Manual

Page: 94 / 136

5
ChromQuest Diagnostics for the PDA Detector
Verifying Operational Performance
74 Surveyor PDA Plus Detector Hardware Manual Thermo Scientific
Figure 68. Display page with an intensity scan of the light output from the deuterium lamp
6. View an intensity scan of the deuterium (D
2
) and tungsten (W) lamps together:
a. Open the Lamps page and turn on the tungsten (W) lamp. Leave the deuterium (D
2
)
lamp on.
b. Return to the Control page and change the Discrete Channels settings to monitor
diodes 94, 177, and 260.
c. Click Load To Detector . A dialog box containing the message Method Has Been
Downloaded appears. Click OK .
d. Open the Display page and click Start to refresh the display (see Figure 69 ).
e. Save a printout or an electronic copy of the spectrum. Date the printout and add it to
your maintenance records (see
“Recording the Performance of the Lamps” on
page 77 ).
Note These diodes roughly correspond to the wavelengths of 300 nm, 400 nm,
and 500 nm, respectively. The Discrete Channels area on the Display page
contains a digital readout for the selected diodes (
Figure 68 ). Record these
readout values to track the performance of both lamps.