cobas® c 303 analytical unit

Combining photometric and ISE testing on a footprint of just 1.2 square meters.

IVD For in vitro diagnostic use.
cobas c 303 analytical unit

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cobas pure integrated solutions front view

cobas® pure integrated solutions

Simplicity meets Excellence

cobas® pure integrated solutions is a member of the cobas® family of systems which is designed to deliver excellence, while at the same time simplifying your daily work.


Ordering Information

Technical Documents

Access Material Data Sheets, Certificates of Analysis, and other product documentation.

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Specifications of the reagent system

  • Reagent pack types

    cobas c pack green

  • Reagent loading / unloading


  • Reagent Identification


  • Capacity of reagent disk

    42 reagent packs

  • Reagent storage temperature

    5 – 15 °C (41 – 59 °F)

Specifications of the sampling system

  • Sampling cycle time

    8 seconds

  • Sample pipetting volume

    1.0 – 25.0 μL (0.1 μL steps)

  • Sample Liquid level detection


  • Sample clot detection


  • Sample air aspiration detection


Specifications of the reaction system

  • Number of reaction cells


  • Reaction volume

    75 – 185 μL (detectable reaction volume)

  • Incubation bath temperature

    37.0 +/- 0.1 °C

  • Reaction time

    3 – 10 min (1 min steps)

  • Mixer


Specifications of the photometric system

  • Measurements per reaction cell/10 min


  • Photometer lamp

    12 V, 50 W

  • Photometer

    Multiple wavelengths spectrophotometer

  • Maximum throughput*

    Photometric only: 450 tests/hour

    ISE only: 450 tests/hour (150 samples/hour)

    Mixed mode Photometric & ISE: 750 tests/hour (300 photometric + 450 ISE tests/hour)**

    HbA1c only: 225 tests/hour

* Throughput may differ based on the mix of test orders per sample

** The ISE unit and the c 303 photometric measuring unit share the same sample pipetter

Source: cobas® pure integrated solutions User Guide

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