Pharmacia Biotech RediFrac Fraction Collector

The RediFrac fraction collector is a versatile instrument for simple, straightforward fraction collection. In its standard form it will collect up to 95 fractions in 10 – 18 mm diameter tubes. It will also collect up to 175 fractions in 12 mm tubes and up to 45 fractions in 28 mm diamter vials, with help of simple accessories (not included).

Fractions may be collected in different ways, based on either time or drop counting, controlled via simple programs specified by the operator. For example, you can choose to collect uniform fractions of a fixed time period. The RediFrac will collect fractions untill all tubes are used and then switch itself off. Alternatively, fractions may be collected by specifying the number of drops per tube. Safe collection is ensured by using drop synchrnisation combined with the unique tube sensor which means the instrument cannot collect into empty positions in the tube rack.

The RediFrac is designed primarily as a stand-alone instrument but can also work with other equipement.

Tube rack diameter range: 10 – 18 mm

Tube rack height range: 50 – 180 mm

Tube rack capacity: 95

Fraction sizes time: 0.01 – 99.99 min (0.01 min increments), 100 – 999.9 min (0.1 min increments), 1000 – 9999 min (1 min increments)

Fraction sizes drops: 1 – 9999 drops (1 drop increments)

Memory protection: Programmed parameters and stored data are guaranteed for at least 1 hour after the instrument is switched off or in event of a power failure. Under normal conditions at least 4 days storage can be expected.

Event mark: 0.2 s

Max flow rate: 15 drops/sec