5.1 Start-Up Inspection and Periodic Inspection
5-5
IRAffinity-1
The intensity specifications are given below.
1) There is an absorbance peak of water at 400 cm
−1
, so correct intensity of the power spectrum
is not calculated. Thus the intensity of 403 cm
−1
is used for evaluation of the power spectrum.
Fig. 5.4 Power Spectrum (Example)
If the intensity does not meet the specifications, or the energy at high wavenumbers (to 4600 cm
−1
) is extremely
low, run [Auto adjustment] on the [Instrument] Menu, and reanalyze the spectrum. If the power spectrum does
not improve after the "auto adjustment", the system may be damaged; contact your SHIMADZU representative.
If the intensity remains zero, the light source may be disconnected or damaged; light source replacement or
repair should be performed by a SHIMADZU service engineer.
Wavenumber (cm
−1
): Specification
4600: 10% or more of maximum
4000: 25% or more of maximum
3000: 50% or more of maximum
Wavenumber indicating the maximum intensity
(2500 - 1800 cm
−1
):
50 or more
700: 10% or more of maximum
500: 2% or more of maximum
403
1)
: 0.5% or more of maximum
351: 0.01% or more of maximum
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