This refurbished Perkin Elmer 200 Series Fluorescence Detector (FLD) is in very good condition. Specifications:. - Optical system:. * Ratio photometry; Intensity of the transmitted beam is monitored. - Light source:. * Xe lamp (150W). * Hg lamp (for wavelength control). - Measuring range of the excitation wavelength:. * 200 to 850 nm/zero order. - Measuring range of emission wavelength:. * 250 to 900 nm/zero order. - Photomultiplier must be changed if the emission wavelength is above 731 nm. - Spectral bandwidth of the excitation side:. * 15 nm. - Spectral bandwidth of the emission side:. * 15nm, 30nm (variable). * For this instrument, the spectrum bandwidth is defined by the half-width. Therefore, a wavelength interval of 30 nm or more is required for complete separation of a spectrum. - Wavelength setting:. * Via communication (E-Line) or keyboard. - Wavelength accuracy:. * ±3 nm. - Wavelength repeatability:. * ±0.5 nm. - Recorder output (optional):. * 10 mV full scale; Full range adjustable from 1 to 1000 in steps of 1. - Processor output (optional): * 1 V full scale -40 to 1000 mV. - Response time:. * Can be changed in 7 steps according to time constants of 0.05/0.1/0.5/1.0/2.0/4.0/8.0 seconds. - Sensitivity:. a. With an emission side spectral bandwidth of 15 nm. - S/N ratio for Raman peak of water: 700 or more (baseline method). - S/N ratio for Raman peak of water: 525 or more (tangent method). b. With an emission side spectral bandwidth of 30 nm. - S/N ratio for Raman peak of water: 900 or more (baseline method). - Wavelength: 350 nm, time constant: 2.0 s. - Automatic zero range:. * 0 to 1000. - Offset range:. * 0 to 1000 (adjustable in steps of 1). - Time program:. * Number of programs: 9. * Adjustable time: Up to 600 minutes in 0.1 minute increments. * Number of steps that can be saved: 100 steps for a total of 9 files. * Programmable parameters: measurement wavelength (Ex and Em), baseline processing, PMT gain. - External output ports:. * Analogue output for processor 1 V full level. * Analog output for recorder 10 mV full level. - Flow cell filling volume:. * Standard cell 12 µL (irradiated volume). - Flow cell pressure resistance:. * 1.0MPa. - Operating temperature range:. * 4 to 35°C (non-condensing). - Operating humidity range:. * 25 to 85% relative humidity (non-condensing) Labprocure is responsible for this device.