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Detectors for PLC - Refractometric

RI detectorThe RI 2000 Differential Refractive Index Detector series offers the sensitivity, stability and reproducibility required for optimal RI detection. The thermal isolated optic with a counter current heat exchanger and with its programmable temperature control, results in an extremely stable baseline and an optimal Signal / Noise ratio. The RI 2000 series provide autopurge and autozero capabilities, as well as RS232 communication to acquire data directly without using any external signal interface.
RI 2000 detectors are available for:

  • micro

  • analytical

  • semipreparative mode

 

 

RI2000M/micro

RI2000A/analytical

RI2000P/semiprep

Detection Method

Deflection

Refractive Index Range

1.00 to 1.75

Flow Rate

0,2 - 1,2 ml/min

0,2 - 3,0 ml/min

1,0 - 50 ml/min

Flow Cell Volume

4 μl, 45° angle

9 μl, 45° angle

7 μl, 5° angle

max. Flow Cell Pressure

6 kg/cm2

Dead Volume

Into cell 6 μl

Into cell 24 μl

Into cell 88 or 353μl

Linearity Range

0-500 μl RIU

0-1000 μl RIU

0-20000 μl RIU

Noise Level

10 x 10-9 RIU

5 x 10-9 RIU

10 x 10-8 RIU

Autozero Range

Full Range

Full Range

Full Range

Drift with 1ml H2O/min

< 1 mV/hour

< 1 mV/hour

< 1 mV/hour

Purge Valve

yes

yes

Yes/No (depends on flow)

Integrator Output

+/- 1 Volt

Recorder Output

+/- 10 mV / 100 mV / 1Volt

Recorder Offset

0 mV/ 10 mV/ 100 mV

Recorder Range

8 steps (1:8) - (16:1)

Marker

Yes / No

Digital Interface

RS232 bidirectional, Purge, Autozero, Start, Stop

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 (0,4sec), Medium (0,8 sec), Slow (1,2 sec)

Power Source

AC 100-120/220-240V, 50/60 Hz, 50VA

Dimensions in cm

220mm x 350mm x 155mm (W x D x H)

Weight

12 kg