Shodex - RI-101
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Shodex RI-101 Refractive Index Detector
The unit features a full color LCD that allows the chromatographer to easily check the detector status as well as monitor the detector baseline in real time. An automatic start-up sequence allows the end user to purge, calculate noise and drift values and auto zero before a Ready status is indicated. Temperature can be set from 30 - 50°C in 1°C increments. The RI detector also has a solvent leak sensor that can generate an output signal that will shut down the pump in the unlikely event of a solvent leak inside the detector. A complete series of input/output signal terminals and an RS-232 port allows easy integration with any HPLC system. Extensive help screens and error alert messages guide the user in the event of unusual operation. A validation screen displays temperature, lamp voltage, lamp lilfe, span, noise and drift values thus making a cubersome task very easy.
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Features of RI-101
- Equipped with color liquid crystal display, the detector monitors status of chromatograph in real time.
- The automatic start-up function automates complicated operations such as the substituting eluent in the reference cell and checking the baseline stabilization.
- The validation wizard achieves component validation with ease.
- Optimization of the temperature control method shortens the time for stabilization after the start-up and improves baseline stavility.
- The leak sensor automatically stops the pump in case of solvent leakage.
- External input and output terminals and RS232C communication ports permit advances automation of the system.
General Specifications
| Auto-Zero | 1 |
| Depth | 400 mm |
| Drift | 200 nRIU per hour |
| Height | 200 mm |
| Temperature Range | 30 to 50 °C |
| Width | 260 mm |
| Noise | 2.5 nRIU (response: 1.5sec) |
| Power Requirements | AC 100 to 240V±10%, 50/60Hz |
| Peak Power | 150 VA |
| RI Linearity | 600000 nRIU |
| Weight | 13 kg |
| Part Number | F4010101 |
| Flow Rate Range | 0.2 to 3 ml/min |
Additional Specifications
Flow cell type: 2 chamber-type
Measuring method: Deflection type
Refractive Index range 1.00 to 1.75
Measuring range: 0.25 to 512 micro-RIU
Response: 0.1 , 0.25 , 0.5 , 1 , 1.5 , 2 , 3 , 6 sec
Auto zero: Full auto zero
Auto zero range: All range
Off-set range: 0 to 500mV (Same as integrator output)
Off-set response: 10mV (Same as integrator output)
Max. back pressure 50kPa
Flow Rate (Max.): 10mL/min (solvent: pure water)
Integrator output (Sensitivity): DC 0 to 1V (2mV/micro-RIU, 8mV/micro-RIU)
Cell volume: 8micro-L
Internal volume:
[u]IN to Cell:[/u] ca. 60micro-L
[u]Cell to OUT:[/u] ca. 600micro-L
[u]All:[/u] ca.670micro-L
Recorder output: 0 to 10mV/FS
External input: Purge On/Off, Auto Zero, Marker
External output:
(1) READY (Automatic start-up)
(2) LEAK
(3) ERROR (OVER HEAT/LOW LIGHT INTENSITY/
NULL GLASS HOME POSITION/LOST PARAMETERS/OPTICAL BALANCE)(Cntact capacity : 0.1A max.)
Communication port: RS232C
Operational support functions:
(1) Automatic start-up (Start Up Sequence), (2) Span/Validation Guide,
(3) Real Time Baseline Monitor
Whetted materials: Stainless steel 316, Teflon, Quartz glass
Accessories: Power cable, single code, connector tube, fuse, operation manual