Watson-Marlow PF22 - Manual (Page 5)

Operators Manual
PF22
PF22 OM EN 74-132-005 v1.02.doc Version: 1.02 Page 5 of 34
3 General information
3.1 Use
PF22 is a fully programmable, peristaltic filler (dispenser) which as a single unit can dispense
liquids of volumes from 1 ml up to 9999.9 ml.
PF22 has been specially developed for laboratory applications where extreme flexibility, frequent
product changes and absolute accuracy are key parameters.
PF22 is programmable for a number of different applications, and full production documentation
can be printed, if a printer is connected.
This manual contains all information necessary for the daily operation of the unit and so the PF22
manual should be read before using the filler.
3.2 Unpacking and inspection
Please check that all ordered items have been received and that no items were damaged during
transport. In case of any defects or omissions, please contact Flexicon A/S or your local supplier
immediately.
When ordering spare parts, or accessories, for the PF22, please state the serial number. The
serial number is stamped on the label on the rear of the PF22.
ALWAYS REMEMBER that this machine must be earthed.
3.3 The peristaltic principle
PF22 operates with a peristaltic dispenser head (tube pump), where the liquid only comes into
contact with the flexible tube, the tube connections and the filling needle. The tubes are usually
made of silicone, but other materials can also be used.
The dispenser head is designed in such a way that sterilised tubes can be assembled in the head
without affecting the sterility. Flexicon tubes are made of raw materials medically approved by the
FDA. The tubes are delivered in sealed packages and are provided with a batch number which
makes it possible to trace the tubes all the way back to the raw material source.
For this reason PF22 is specially suited for aseptic applications and for preventing cross-
contamination. The dispenser head is self-priming, and the dispenser head itself can stand to be
run dry. It is recommended not to let the dispenser head be run dry for a long period WITH
CONNECTED TUBES, since this will lead to particle release.
A peristaltic dispenser head is not suitable for viscous products.