The Surveyor UV/Vis Plus Detector is a time programmable, variable-wavelength ultraviolet/ visible light absorbance detector. It operates in either the single or dual wavelength mode in the UV or visible ranges. The UV/Vis detector is a bench top unit for inclusion into the Surveyor LC System. The UV/Vis detector consists of a dual light source, an optical bench and dual photodiode detectors.
Specifications:
| Type | Specifications |
|---|---|
| Light Source | Deuterium and tungsten lamps, re-aligned |
| Wavelength Range | 190 nm to 800 nm D2 Lamp: 190 to 365 nm W Lamp: 366 to 800 nm |
| Wavelength Accuracy | ±1 nm at 254 nm and 656 nm |
| Spectral Bandwidth | 6 nm |
| Absorbance Range | 0.0005 AUFS to +3.0 AUFS |
| Short Term Noise* | 6 μAU/cm at 254 nm, 1s rise time, single wavelength mode(50 mm LightPipe flow cell) 20 μAU/cm at 254 nm, 1s rise time, single wavelength mode(10 mm standard analytical flow cell) |
| Drift* | ≤ 1 mAU/h at 254 nm and 546 nm (50 mm LightPipe flow cell) ≤ 0.1 mAU/h at 254 nm and 546 nm (10 mm standard analytical flow cell) |
| Warm-up | 90 min to meet noise and drift specifications |
| Linearity | deviation ≤5% up to 2.0 AU at 256 nm |
| Scan Rate | 4, 5, 6.67, 10, or 20 Hz(user selectable) |
| Rise Time | 0, 0.1, 0.2, 0.5, 1, 2, 3, 4, or 5 s (user selectable) |
| Cell Dimensions | 10 mm, 15 μL standard analytical 50mm, 10 μL LightPipe |
| Cell Pressure Rating | 1000 psi |
| Analog Outputs (2) | Unattenuated at 10 mV/AU, 100 mV/AU, or 1.0 V/AU |
| Remote Controls | Start, Zero, RJ45 Ethernet interface for ChromQuest |
| Dimensions (h × w × d) | 7.1 in × 14.2 in × 18.5 in |
| Operating Temperature | +10 to +30 °C |
| Storage Temperature | – 40 to +70 °C |
| Operating Humidity | 5% to 95% non-condensing relative humidity |
*According to ASTM E1657-94 “Standard Practice for Testing Variable-Wavelength Photometric Detectors Used in Liquid Chromatography” (for 50 mm flow cell, 5 nm bandwidth, 2 sec rise time, and MeOH at 1 mL/min.).
