Thermo Scientific Evolution 201 - PV Test Descriptions

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Performance Verification
PV Test Descriptions
452 Evolution 200 Series User Guide Thermo Scientific
PV Test Descriptions
Test Description
Wavelength Accuracy (Hg lamp) Locates the peaks from the external Mercury Lamp
Calibration accessory and displays their measured and
allowed range of wavelengths. A mercury lamp has
strong, fundamental lines throughout the UV-visible
range. These emission lines are a property of the lamp
and serve as a fundamental wavelength standard that
does not require calibration. The wavelengths and
tolerance values cannot be changed. Use an empty cell
holder and install the mercury lamp accessory properly
in the instrument.
Wavelength Reproducibility (Hg
lamp)
Measures the ability of the spectrophotometer to return
to an identical wavelength in a repeatable manner. The
test uses the external mercury lamp, which has a strong,
fundamental line near 546 nm. This emission line is an
intrinsic property of the lamp and serves as a
fundamental wavelength standard that does not require
calibration. The wavelength and tolerance values cannot
be changed. Use an empty cell holder and install the
Mercury Lamp Calibration accessory properly in the
instrument.
Wavelength Accuracy (Xe lamp) Locates the peak near 542 nm of the internal xenon
lamp and displays the measured and allowed range of
wavelengths. A xenon lamp has strong, fundamental
lines throughout the UV-visible range. These are an
intrinsic property of the lamp and serve as a
fundamental wavelength standard that does not require
calibration. The wavelength and tolerance values cannot
be changed. Use an empty cell holder.
Wavelength Reproducibility (Xe
lamp)
Measures the ability of the spectrophotometer to return
to an identical wavelength in a repeatable manner. The
test uses the internal xenon lamp, which has a strong,
fundamental emission line near 542 nm. This line is a
property of the lamp and serves as a fundamental
wavelength standard that does not require calibration.
The wavelength and tolerance values cannot be changed.
Use an empty cell holder.