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6
Routine Maintenance
Recommended Maintenance
Recommended Maintenance
86
Surveyor PDA Plus Detector Hardware Manual
Table 2
lists recommendations for routine maintenance of the Surveyor PDA Detector. Use
the table as a basis for developing your maintenance program in accordance with the practices
of your company.
Table 2. Recommended Routine Maintenance
Procedure
Cleaning External Surfaces
LightPipe flow cell Cleaning
Wavelength Calibration
Dark Current Calibration
(Calibrating the dark current increases the
linearity of the detector at the high end of its
operating range. The dark current does not
significantly affect absorbance values between
0.2 AU and 0.8 AU. The dark current is a
function of temperature.)
Event Log Printout
Operation Verification
Lamp Replacement
• Deuterium (D2)
• Tungsten (W)
Adjust Attenuators
Update Firmware
*
Good Laboratory Practice (GLP) dictates that the flow cell should be flushed with clean solvent after every use.
This practice reduces the frequency with which you need to clean your flow cell.
Interval
As needed
*
As needed
After lamp replacement or as needed
After 100 hours of use or monthly,
whichever comes first
After significant changes (>4 C) in
ambient room temperature
After lamp replacement
Weekly
Semi-annually
Every 1000 hours or as required
Every 2500 hours or as required
As needed
As needed and as updates become
available
Thermo Scientific
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