L-2490 RI Detector

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	The difference in the refractive index between the eluant and sample is used to detect the target ingredient. The detector is used widely for measurement of high molecular compounds and sugar. Shorter stabilization time Compared to the conventional models (our products), the stabilization time has been shortened substantially. Measurement can be started 0.5-1 hour after the power is turned on. Variable cell temperature The cell temperature can be set within a range between 30 and 50(in 1 increments). Detailed setting is possible depending on the column temperature and ambient temperature. Control from system manager Chromatograms are processed by digital signals.

Specifications

Item L-2490 RI Detector Method of Detection Deflection Light source Tungsten lamp Refractive index range 1.0 to 1.75 Linearity range 600µRIU Baseline noise 2.5 x 10-9 RIU or less (water filled in, time constant 3.0 s) Temperature control Off, 30 to 50 Time constants 0.1, 0.25, 0.5, 1, 1.5, 2, 3, 6 s External outputs Warning when measurement range is exceeded, Auto zero, Alarm, Recorder 10 mV/FS, Integrator 1 V/FS External inputs Auto zero, Marker, Purge Baseline adjustment range 0 to 50% /FS Auto zero Full auto zero (optics + calculation) Recorder range 0.25 to 512 x 10-6 RIU/FS Cell volume 8 µL Max. flow rate 10 mL/min Max. pressure in cell 7.1 psi (0.049 MPa) Dimensions 13.5 in (W) x 15.75 in (D) x 6.0 in (D) (340 mm (W) x 400 mm (D) x 150 mm (D)) Weight Approx.29 lbs (13kg) Power requirement & consumption 100 to 240 VAC (+/- 10%), 50/60 Hz, 150 VA or less