RefractoFlow 2030

Refractive Index Detector (RI)

The RI-Detector RefractoFlow 2030 Differential Refractive Index Detector series offers the sensitivity, stability and reproducibility required for optimal RI detection. The thermal isolated optic with a countercurrent heat exchanger and with its programmable temperature control results in an extremely stable baseline and an optimal Signal/Noise ratio. The RF 2030 series provide autopurge and autozero capabilities, as well as RS232 and LAN communication to acquire data directly without using any external signal interface. The detector can be programmed, controlled and used manually by keypad or together with the software Clarity® or ChromStar®.
 

TECHNICAL SPECIFICATIONS

Analytical specificationsEluent volumesData communicationGeneral
Analytical specifications  
Measuring range refractive Index 1.00 – 1.75 RIU
Measuring range ± 1000 μRIU
Zero compensation optics Full measuring range via adjustment screw
Zero compensation measuring signal Full measuring range via AutoZero function
Drift 1 μRIU/hour (1 mV/hour) *
Noise ± 7 μRIU (± 7 μV)* (analog)
  ± 3 μRIU (± 3 μV)* (digital)
Analog outputs  Integrator (not configurable)
   Recorder (configurable)
Integrator output ± 1200 mV
Recorder output 10 mV, 100 mV, 1000 mV or EXTN (+/- 1200 mV)
Recorder range Selectable from 128, /64, /32, /16, /8, /4, /2/, 1 *2, *4, *8, *16, *32, *64, *128
Recorder offset Selectable in the range of -50, -10, -5, -1, 0, +1, +5, +10, +50 [%] related to selected recorder scope
Recorder marker Marker function ON/OFF
Temperature control optics 35 – 55 °C (1 °C steps)
Thermal fuse 72 °C
Self-heating approx. 7 °C above ambient temperature
Flow cell (analytical) 45° – Flow cell with two chambers
Volume 9 μL / chamber
Pressure max. 6 bar (0.6 MPa)
Flow rate 0.1 – 3.0 mL / min
Purge valve 3 or 2 directional valve (12 volt)
max. valve pressure 2 bar (0.2 MPa)
Material and wetted parts Stainless steel 316, Teflon and quartz glass
max. pH range 2.3 – 9.5
   
* 1 mV according 1 μRIU in case that calibration was performed with calibration solution 500 μRIU.
Eluent volumes  
Inlet –> Cell 22 μL
Inlet –> Cell –> Outlet approx. 600 μL
Total approx. 1.300 μL
Data communication  
Digital interface RS232, bidirectional
Digital input TTL Purge, AutoZero, Start/Marker
Digital output TTL Intensity alarm
General  
Physical specifications table
Power supply 100 – 120 V or 220 – 240 V; AC; 50 – 60 Hz
Power input max. 50 W
Dimensions (w x h x d) 280 x 135 x 498 mm
Weight 12 kg
Operating temperature 10 – 35 °C

 

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