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RI Refractive Index Detector RID10 - analytical

analytical Differential Refractometer


For analytical HPLC 

High sensitivity, excellent baseline stability and reproducibility
at a reasonable price


These refractive index detectors, as well named differential refractometers, have a large linear measuring range, the maximum flow rate is 10 ml/min. The detectors with very pressure resistant flow cell, long-life LED and tempered optical unit are characterized by fast baseline stabilization, high sensitivity and excellent reproducibility.

These RI Detectors are used for measuring analytes that bear no chromophores and/or are volatile, thus for the routine analysis of UV-inactive substances.

Performance characteristics

  • easy handling and operation
  • minimal maintenance
  • extremely pressure-stable measuring cell
  • long-life LED
  • tempered optical unit
  • improved safety components (with leak sensor)
  • large linear measuring range
  • maximum flow rate 10 ml/min
  • made in Germany
  • stand-alone mode or integration in LC systems

Range of uses

For example, for the detection of:

    *  saccharides
    *  organic acids
    *  proteins
    *  peptides
    *  polymers
    *  lipids


Measuring principle:

differential measurement of light beam deflection

Refractive index range:

1.00 - 1.75 RIU


± 2.5 nRIU/h


200 nRIU/h


> 1000 µRIU

Light source:

long-life LED

Detection channels:


Flow cell max.:

5 bar back pressure resistance

Flow rate max.:

10 ml/min (pure water)

Flow cell volume:

15 µl

Wetted materials:

Stainless Steel, fused silica, PTFE, PEEK

Temperature control:

OFF, 30 - 55°C (1°C steps)

Time constants:

0.00;0.01;0.02;0.05;0.1;0.2;0.5;1.0;2.0;5.0;10.0 seconds

Data rate:

100 Hz (LAN), 20 Hz (analog)

Auto Zero:

entire refractive index range

Leak Sensor:



detailed report including operating hours, light source operating hours

Ambient conditions:

4-40°C, Humidity: < 90% non condensing

Display (optional):

mobile control

External signal input:

Error, Start, Auto Zero, Flush

External signal output: 

Event 1, Start, Error, + 5V, 24V valve

Analog outputs:

1 x 0- 2,5 V scalable, 20 bit, offset adjustable


mobile control, software, event control, analog, terminal protocol


2 x LAN (RJ-45, Dual-IP-Stack), USB (service only), multi-pin connector, analog (cinch connector)

Power supply:

100 - 240 V, 50-60 Hz, 65 W

Dimensions (W x H x D):

ca. 360 x 160 x 520 mm


approx. 11 kg


Managing Director:
Joachim Paschlau

HRB 135721 München
WEEE-Reg.Nr. DE 66898529


Gesellschaft für den Vertrieb wissenschaftlicher Geräte
Otto-Hahn-Strasse 28-30
85521 Riemerling
Tel: +49 89 66055696
Fax: +49 89 60824826