Waters 474 Scanning Fluorescence Detector
3-12 month warranty
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$3680 USD
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| Condition | Specification |
| Monochromator | Holographic concave diffraction grating (for both excitation and emission) |
| Light source | 150 W Xenon lamp |
| Wavelength range | 200 to 700 nm (for excitation and emission). Can be set from 0 to 900 |
| Spectrum band width | Excitation: 18 nm Emission: 10, 18, or 40 nm (set on keypad) |
| Wavelength accuracy | ±2 nm |
| Wavelength repeatability | ±0.3 nm |
| Detector | Excitation: Photodiode Emission: Photomultiplier tube |
| Second order filter | Automatically inserted into light path when Ex > 400 Nm |
| Flow cell | 16 µL (standard) or 5 µL |
| Maximum flow cell pressure | 16 µL: 145 psi (10 bar) 5 µL: 500 psi (34.5 bar) |
| Wetted surfaces | Synthetic silica, fluororesin, PEEK, stainless steel SXS-316 |
| Sensitivity | S/N for the Raman peak of water is 320 or above, where Ex λ = 350 nm and time constant is 1.5 sec, 16 µL cell (Instruments shipped prior to June 1997, S/N for the Raman peak of water is 200 or above) |
| Attenuation range (Recorder output) | Ten steps, including 1, 2, 4, 8, 16, 32, 64, 128, 256, S |
| Gain range | 1, 10, 100, 1000 |
| Response | Fast, Standard, Slow, and digital filter |
| Signal processing | Digital processing by A/D and D/A converters (with surrounding temperature compensation circuits) |
| Outputs | • Recorder: 10 mV full-scale (can be inverted) • Integrator: 1 V full-scale • Marker output • Leak output |
| Inputs | • Marker input • Auto Zero input • Program reset |
| Program functions | Time program with following variables: • Wavelength change (excitation and emission) • Gain • Attenuation • Wavelength scan • Ex, Em Spectra |
| Wavelength scan functions | Manual and time program parameters: • Time • Interval • Amplitude • Memory location • Ex, Em Spectra |
| Spectrum storage | Ten locations for both emission and excitation spectra |
| Self-test diagnostics | • Memory (ROM and RAM) • DC power • Excitation energy decrease • Leak in cell • Lamp use time |
| Lamp use timer | Internal timer for accumulating the total hours on the Xenon lamp |
| Ambient temperature | 10 °C to 32 °C (50 °F to 90 °F) operation 10 °C to 60 °C (50 °F to 140 °F) storage |
| Relative humidity | 20 to 80%, non-condensing |
This refurbished Waters 474 Scanning Fluorescence Detector is really in great condition and is tested at SpectraLab Scientific.
A 90 day warranty is included. Multiple available.
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SpectraLab Scientific Inc
Established in 2003,
SpectraLab Scientific is a global leader of Refurbished analytical equipment. We specialize in reconditioning equipment, integrating the best available technologies from leading manufacturers across the industry. We are committed to quality and service, delivering strong customer satisfaction. We stock over 10,000 pre-owned lab equipment, components, and mix-and-match parts for your systems.
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