The NEW Differential Refractive Index Detector for HPLC, GPC/SEC

The new Refractive Index Detector RI 2012 series provides a consistent enhancement of the already successfully established Refractive Index Detector models RI 2000 and RI 2000-F.

The Refractive Index Detector RI 2012 series offers users 3 times higher sensitivity, (compared to RI 2000) stability and reproducibility required for optimal refractive index detection in HPLC and GPC/SEC

The new Refractive Index Detector RI 2012 series provide autopurge and autozero capabilities, as well as RS-232 and USB communication to acquire data directly without using any external signal interface.

Refractive Index Detector RI 2012 detectors are available for:

micro
analytical
semipreparative mode

	RI 2012 M / micro	RI 2012 A / analytical	RI 2012 P/ semiprep
Detection Method	Deflection Deflection Deflection
Refractive Index Range	1.00 to 1.75 1.00 to 1.75 1.00 to 1.75
Flow Rate	0,2 - 3,0 ml/min	0,2 - 3,0 ml/min	5,0 - 50 ml/min
Flow Cell Volume	4ul, 45° angle	9ul, 45° angle	13ul, 5° angle
max. Flow Cell Pressure	6 kg/cm2 6 kg/cm2 6 kg/cm2
Dead Volume	Into cell 6ul	Into cell 24ul	Into cell 88 or 314ul
Linearity Range	0-500ul RIU	0-1000 uRIU	0-20000 uRIU
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	Control of: Purge, Autozero, Start, Stop, Heater, Data output rate, Polarity Current output of: Temperature optical bench, Optical balance, sum voltage, difference voltage, Alarm (Signal too high/low, A/D out of range, no temp. sensor)
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 70°C
Time Constant	RAW (0,0 sec), Fast (0,4 sec), Medium (0,8 sec), Slow (1,2 sec)
Power Source	AC 100-120/220-240V, 50/60 Hz, 50VA
Dimensions in cm	300mm x 440mm x 175mm (W x D x H)
Weight	9,6 kg

Cat.-No.:	Description
RI 2012 A	Differential Refractive Index Detector, Analytical
RI 2012 M	Differential Refractive Index Detector, Micro
RI 2012 P	Differential Refractive Index Detector, Preparative