S 2020 RI Detector
The S 2020Refractive Index Detector provides the sensitivity, stability, and reproducibility required for accurate RI detection.
The thermally separated optic, which includes a countercurrent heat exchanger and programmable temperature control, produces a highly stable baseline and an optimum Signal/Noise ratio.
The S 2020 Refractive Index Detector has auto-purge and autozero features, as well as RS232 connectivity for direct data acquisition without the use of an external signal interface.
S 2020 is available for:
- Micro mode
- Analytical mode
- Semi-preparative mode
The S 2020 RI Detector is an excellent Refractive Index Detector for a wide range of system designs. The detector provides the best sensitivity for microbore HPLC and the highest dynamic measuring range for preparative applications with the microflow cell (up to 3.0 ml/min), analytical flow cell (up to 10 ml/min), or semi-preparative flow cell (up to 50 ml/min) with measuring ranges of up to 500 µRIU, 1000 µRIU, and 20000 µRIU, respectively. Along with its extensive connection (both analog and digital), the S 2020 RI Detector can be used in practically any chromatographic system that requires refractive index detection.
Technical Specifications:
| Detection Method | Deflection |
| Refractive Index Range | 1.00 to 1.75 |
| Flow Cell Pressure | 6 kg/cm² |
| Integrator Output | ± 1 V |
| Recorder Output | ± 10 mV/ 100 mV/ 1 V |
| Recorder Offset | 0 mV/ 10 mV/ 100 mV |
| Recorder Range | 8 steps (1:8) – (16:1) |
| Digital Interface | RS232, Purge, Autozero, Start, Stop, DataOut: 1 Hz, 10 Hz |
| Digital Output | TTL: Intensity Alarm |
| Digital Input | TTL: Purge, Autozero, Start, Marker |
| Temperature Setting | Ambient, 35°C to 55°C in 1 °C steps, Thermal Fuse 75°C |
| Time Constant | RAW (0.0 sec.), Fast (0.4 sec.), Medium (0.8 sec.), Slow (1.2 sec.) |
| Weight | 13 kg |
| Dimensions (W x H x D) | 310 x 165 x 478 mm (500) 396 x 165 x 478 mm (600) |
| Power Supply | 100-120/220-240 ~V (50/60 Hz), 50 VA |
| Micro | Analytical | Semi-preparative | |
|---|---|---|---|
| Flow Rate (ml/min) | 0.2 – 3.0 | 0.2 – 3.0 | 1 – 50 |
| Cell Volume | 4 µl, 45°∠ | 9 µl, 45°∠ | 7 µl, 45°∠ |
| Dead Volume | 6 µl | 24 µl | 88 or 353 µl |
| Linearity Range | 0 – 500 µRIU | 0 – 1000 µRIU | 0 – 20000 µRIU |
| Noise Level | 10 x 10-9 RIU | 5 x 10-9 RIU | 10 x 10-8 RIU |
| Drift with 1ml H2O/min | < 1 mv/hour | < 1 mv/hour | < 1 mv/hour |