Thermo Scientific - Accela RI Detector

Manufactured by  Thermo Scientific
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The Accela RI Detector is a full-featured, low-maintenance, refractive index detector.

The Accela RI Detector is a full-featured, low-maintenance, refractive index detector. The detector is a benchtop unit for inclusion in the Accela LC system. You control the detector through an Ethernet link to the data system computer that has the ChromQuest™ data system installed.
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Features of Accela RI Detector
  • An automatic intensity adjustment that compensates for deteriorating sensitivity due to flowcell contamination or reduced light levels
  • A solenoid valve that operates at half its rated voltage and a tungsten lamp that operates at a reduced voltage to maximize component life
  • Light-emitting diodes (LEDs) that provide status information about the detector
  • A dynamic operating range of 1.00 to 1.75 RIU, which makes the detector suitable for a variety of applications
  • Integrated instrument control from the ChromQuest data system, which provides automated temperature control, a rise time filter, a purge function, an autozero function, and built-in calibration procedures
General Specifications
Auto-Zero1
Depth 18.5 in
Height7.08 in
Width 14.17 in
Noise2.5 nRIU (Response:1.5 seconds)
Power Requirements 100/115 or 230 Vac ± 10%, 50/60 Hz
Peak Power100 VA
RI Linearity600000 nRIU
Weight38 lbs
Additional Specifications

Operating humidity: 5% to 95% non-condensing relative humidity
Method of detection: Deflection
Refractive index range: 1.00 to 1.75 RIU
Attenuator range: 0.25 to 512 ΜRIU
Rise time: 0.1, 0.25, 0.5, 1, 2. 3. 6 seconds
Polarity: Positive/Negative
Zero adjustment: Optical zeroing, automatic zeroing
Automatic zeroing range: ± 10 × 10–5 RIU
Resolution of autozeroing: ± 10 × 10–9 RIU
Offset adjustable range: 0 to 500 mV (same with Integrator output sensitivity)
Resolution of offset: 10 mV (same with Integrator output sensitivity)
Integrator output: 0 to 1V/FS (Sensitivity: 512 × 10–6 RIU/FS)
Recorder output: 0 to 10 mV/FS
External communication: Ethernet
Event marker input: Contact: = DC 5V, 0.1 A
• Purge on/off
• Automatic zeroing on/off
• Run
Signal output: Contact: = 5V, 0.1 A Ready
Signal input: Run, Autozero, Purge
Temperature control: 30 to 50 °C (1 °C increment) or off
Flowcell volume: 8 ΜL
Maximum flow rate: 10 mL/min (mobile phase: deionized water)
Pressure rating: 517 kPa (75 psi)
Liquid-contact materials: 316 stainless steel, Teflon™, Quartz optical glass

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