Watson-Marlow 323Du - Manual (Page 38)

Watson-Marlow 323E, 323S, 323U and 323Du User Manual 38
23.7 314MC and 318MC microcassette
pumpheads
S400, U400,
Du400
314MC and 318MC pumpheads must not run at speeds
greater than 110 rpm.
Each pumphead offers five pumping channels, and the manifold tubing is preloaded
in removable cassettes. The 314MC pumphead has four rollers and is designed to
provide higher flow rates. The 318MC pumphead has eight rollers for higher pump-
ing precision with less pulsation.
Each cassette will accept any one of nineteen tube sizes available. Adjacent cassettes
may contain different types or size of tubing.
New tube loads easily in the cassette design. Cassettes locate quickly with a single
cam lever action that also controls roller pressure against the tube.
Extension pumpheads may be added up to 10 channels. All are bayonet mounted for
easy cleaning and fast set up.
Tube selection
The chemical compatibility list published in the Watson-Marlow web site is only a
guide. If in doubt request a tube sample card for immersion trials.
Installation
323 400 rpm drives (shown) have an integral mounting plate to attach a 314MC or
318MC pumphead.
Engage the pumphead drive slot with the end of the pump drive shaft. Continue to
align the pumphead until the bayonet engages with the mounting plate. Turn the
pumphead clockwise until it locks into an upright position.
Removal
Push the locking lever back and turn the pumphead anti-clockwise until it is free from
the mounting plate.