BN II System
Confidence in plasma protein results

BN II System
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Measuring principle Nephelometry; measurement of the scattered light intensity in a fixed angle of 13 - 24 degrees
Methods More than 60 programmed assay protocols
Sample throughput Effective: Approx. 130 tests/hour depending on the assay mix
Nominal: 225 tests/hour
Analysis method Fixed-time kinetics, end-point measurement, VLin Integral
Calibration Multi-point calibration
Rack transport unit Racks for up to 8 standard or control vials
Racks for up to 7 reagent vials
Racks for up to 10 sample tubes
Dilution unit 2 frames for max. 264 dilution cups
Size of sample tubes Diameter: 12 - 16 mm
Height: 55 - 100 mm
For pediatric samples:
Conical microtubes with a maximum filling volume of 1.5 mL
Barcode types Automatic reading of different barcode types:
2/5 interleaved
Code 39
Code 93
Code 128
Reagent volume 40 µL reagent consumption on average
Sample dilution 1 : 1 to 1 : 40,000
Level detection For samples, standards, controls, reagents, and system liquid containers
Reaction cuvettes 60 reusable cuvettes
Measuring temperature 37 ± 1.5°C
Light source Infrared high performance LED
Wavelength 840 ± 25 nm
Detector Photodiode with integrated pre-amplifier
Instrument dimensions and weight
Analyzer dimensions (W x H with tubings x D)
124 x 92 x 63 cm (49 x 36 x 25 in.)
Computer dimensions (W x H x D)
Approx. 19.7 x 19.7 x 3.6 cm (7.8 x 7.8 x 1.4 in)
Depth with keyboard Approx. 74 cm (29 in.)*
Printer dimensions (W x H x D)
Approx. 41 x 27 x 37 cm (16 x 11 x 15 in.)*
Total bench length Approx. 230 cm (90 in.)*
Analyzer weight 150 kg (330 lb.)
Terminal weight Approx. 7 kg (15.4 lb.)*
Room environment Ambient temperature 
15 to 32 °C (59 to 89 °F) 
Relative humidity 
Maintain between 30% and 85% (noncondensing) 
Average thermal output 
340 BTU/hr (100 W) in standby mode 
975 BTU/hr (286 W) in operating mode 
Water requirements 
Deionized water, NCClS Type 2 
Microbial count must not exceed 100 CFU/ml 
Electrical installation requirements Voltage
100 to 127 V/50 or 60 Hz
187 to 240 V/50 or 60 Hz
Power consumption
<140 VA (stand-by-mode)
<400 VA (operating mode)
Host interfacing
Download and host-query mode
Computer and Printer Terminal 
Apple Mac mini Computer
Lexmark E260 D or DN or equivalent
Connectivity RS232 bi-directional host interface
Aptio® Automation and FlexLab Automation solutions
CentraLink® Data Management System


*Dependent on model

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