Comparison ledger
Agilent 11980 A, Varian 640 IR FTIR, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 11980 AAgilent | 640 IR FTIRVarian |
|---|---|---|
| OEM | Agilent | Varian |
| Category | Precision Optics | Precision Optics |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Agilent 11980 A | Varian 640 IR FTIR |
| Specifications | ||
| Wavelength Range | 1250-1600 nm[1] | 11000 to 735 cm-1 depending on Optics (Mid-IR and Near-IR)[3] |
| Interferometer type | — | 38 mm dynamically aligned, 60° mechanical bearing Michelson[2] |
| Spectral range (Mid IR) | — | 7,900–375 cm-1[2] |
| Spectral range (Near IR) | — | 11,000 - 2,000 cm-1[2] |
| Spectral resolution (unapodized) | — | < 0.18 cm-1 (Mid IR), < 0.25 cm-1 (Near IR)[2] |
| Signal-to-noise ratio | — | 6,000:1 peak-to-peak (absorbance = 7.2 x 10-5) measured at 5 seconds, 4 cm-1 resolution[2] |
| Spectrometer enclosure | — | Sealed and dessicated (Standard); Tropical moisture-resistant windows (Optional)[2] |
| A/D converter dynamic range | — | Delta-Sigma (24 bits)[2] |
| Spectrometer interface | — | USB 2[2] |
| External ports | — | 3 (left, right and rear emission)[2] |
| Mid IR source | — | Ceramic[2] |
| Mid IR beamsplitter | — | Optimized KBr[2] |
| Mid IR detector | — | Cooled DLaTGS[2] |
| Near IR source | — | Tungsten-halogen[2] |
| Near IR beamsplitter | — | NIR quartz[2] |
| Near IR detector | — | PbSe[2] |
| 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)[2] |
| 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)[2] |
| Weight | — | 80 kg (176 pounds)[2] |
| Wavelength range | — | 11000 to 735 cm-1[3] |
| Scan speed | — | >40 scans per second[3] |
| Wavelength accuracy | — | >0.01 cm-1[3] |
| Wavelength precision | — | >0.005 cm-1[3] |
| Speed (scans per sec) | — | >40[3] |
| Resolution | — | 0.18 cm[3] |
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