Techcomp UV 2600 - Performance Verification

CHAPTER 4 MAINTENANCE
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Figure 4-8 Removal of Sample Compartment Window Plate
4.2 Performance Verification
After powering on the instrument, wait for 30 minutes for stability. Then
performance verification can be done.
Item
Contents
(1)Wavelength Accuracy
Test peak value of D2 lamp feature spectrum and
get the error comparing with 656.1nm. At 1nm slit
after powering on.
Specification：±0.3nm
(2)Wavelength
Repeatability
For repeatability test of wavelength standard
value, do the test at 1nm slit after powering on.
Specification：±0.1nm
(3)Baseline Stability
Check stability using time scan.
Specification：≤0.0004Abs/h（500nm）
（◇Note： 2 hours after powering on）
(4)Baseline Flatness
Check baseline flatness using wavelength scan
（200nm～850nm，120nm/min）
Specification：≤±0.001Abs
△Note
1）Auto test basic performance and work status of main parts of instrument,
must wait for 30 minutes after powering on the instrument.
2）As for baseline stability test, it must be done 120 minutes after powering on
the instrument. And test time is about 60 minutes. Usually, it need not to test
this item.
3）If instrument performance has been tested too often, it may have bad effect
on instrument lifetime. It is suggested to select certain item for test.
Transparent Window
Window frame
Optical axis
Spring
Adhesive tape
Black window frame
(Pull it forward with tweezers)