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Waters 474 Scanning Fluorescence Detector

Waters 474 Scanning Fluorescence Detector
Waters 474 Scanning Fluorescence Detector
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
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
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
Fast, Standard, Slow, and digital filter
Signal processing
Digital processing by A/D and D/A converters (with
surrounding temperature compensation circuits)
• Recorder: 10 mV full-scale (can be inverted)
• Integrator: 1 V full-scale
• Marker output
• Leak output
• 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.

We have special expertise on analytical equipment. We encourage you to contact us to speak with one of our expert and professional team members.

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