توضیحات

دتکتور FLD مدل 474

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

 

جهت مشاوره و خرید انواع تجهیزات آزمایشگاهی با مشاوران واحد فروش شرکت شناسا پرتوژن ۷۵۳۱۱ – ۰۲۱ در ارتباط باشید.

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