| Spectral range: | 54000 -11000 cm-1 |
| Type: | double beam |
| Optics: | Dual monochromator for UV range: |
| Preliminary monochromator: diffraction grating, 1302 scratch/mm |
| Main monochromator: diffraction grating, 1302 scratch/mm |
| Grating-filter monochromator for VIS range: |
| diffraction grating, 651 scratch/mm |
| Filters: |
| Interferencing filters: 31000 - 25000 cm-1 |
| stained glass WK 36: 25000 - 19500 cm-1 |
| stained glass GA 48: 19500 - 14000 cm-1 |
| stained glass RA 67: 14000 - 11000 cm-1 |
| Light sources: | Deuterium lamp D2E - UV range |
| halogen lamp 6V 20W - VIS range (preliminary aligning) |
| Detector: | photomultiplier |
| accuracy of wave number: | 3 cm-1 (0.25 nm) for 11000 cm-1 |
| 10 cm-1 (0.03 nm) for 54000 cm-1 |
| Reproducibility of wave number: | 5 cm-1 (0.02 nm) for 54000 cm-1 |
| 1.5 cm-1 (0.1 nm) for 11000 cm-1 |
| Photometrical accuracy: | 0.005 when E=1 (20000 cm-1, INT=10s, G=5) |
| Scattered light: | <0.01% for 45 454 cm-1 (220 nm) (1% solution of sodium iodide) |
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