Comparison ledger
Perkin Elmer Spectrum Two FTIR, Varian 640 IR FTIR, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | Spectrum Two FTIRPerkin Elmer | 640 IR FTIRVarian |
|---|---|---|
| OEM | Perkin Elmer | Varian |
| Category | Precision Optics | Precision Optics |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Perkin Elmer Spectrum Two FTIR | Varian 640 IR FTIR |
| Specifications | ||
| P/N | L1600300[2] | — |
| Configuration | Refurbished[2] | — |
| OEM | Perkin Elmer[1] | — |
| Model | Spectrum Two[1] | — |
| Instrument type | Fourier Transform Infrared spectrometer[1] | — |
| Included items | Standard sample stage & holder, Lithium Tantalate (LiTa) detector, computer workstation, Spectrum 10 software (installed), power cable, USB / data cables, sample compartment lid[2] | — |
| Interferometer type | — | 38 mm dynamically aligned, 60° mechanical bearing Michelson[3] |
| Spectral range (Mid IR) | — | 7,900–375 cm-1[3] |
| Spectral range (Near IR) | — | 11,000 - 2,000 cm-1[3] |
| Spectral resolution (unapodized) | — | < 0.18 cm-1 (Mid IR), < 0.25 cm-1 (Near IR)[3] |
| Signal-to-noise ratio | — | 6,000:1 peak-to-peak (absorbance = 7.2 x 10-5) measured at 5 seconds, 4 cm-1 resolution[3] |
| Spectrometer enclosure | — | Sealed and dessicated (Standard); Tropical moisture-resistant windows (Optional)[3] |
| A/D converter dynamic range | — | Delta-Sigma (24 bits)[3] |
| Spectrometer interface | — | USB 2[3] |
| External ports | — | 3 (left, right and rear emission)[3] |
| Mid IR source | — | Ceramic[3] |
| Mid IR beamsplitter | — | Optimized KBr[3] |
| Mid IR detector | — | Cooled DLaTGS[3] |
| Near IR source | — | Tungsten-halogen[3] |
| Near IR beamsplitter | — | NIR quartz[3] |
| Near IR detector | — | PbSe[3] |
| Sample compartment dimensions (W x D x H) | — | 23.2 x 27.6 x 15.4 cm (9.1 x 10.9 x 6.1 in)[3] |
| Spectrometer dimensions (W x D x H) | — | 70.8 x 75.6 x 34.4 cm (27.9 x 29.8 x 13.5 in)[3] |
| Weight | — | 80 kg (176 pounds)[3] |
| Wavelength range | — | 11000 to 735 cm-1[4] |
| Scan speed | — | >40 scans per second[4] |
| Wavelength accuracy | — | >0.01 cm-1[4] |
| Wavelength precision | — | >0.005 cm-1[4] |
| Wavelength Range | — | 11000 to 735 cm-1 depending on Optics (Mid-IR and Near-IR)[4] |
| Speed (scans per sec) | — | >40[4] |
| Resolution | — | 0.18 cm[4] |
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