Heidolph Hei-FLOW Core Notice D'instructions page 85

Attachments
Multi-channel pump heads
Multi-channel pump heads can be equipped with a number of specially designed tube
cassettes. Possible combinations of multi-channel pump heads and tube cassettes are:
Multi-channel pump heads
C 4:
C 12:
C 8:
➜
➜
➜
To mount tube cassettes and tubes on multi-channel pump heads, proceed as follows
(see also the following figure [cassettes for multi-channel pump heads]):
➜ Turn the cassette contact pressure adjustment screw fully counter-clockwise to fully
open the clamping elements.
➜ Tubing cassettes type Cassette large only: Use the slider to adjust the tubing size.
– Inner tube diameter up to 3.1 mm: Slide to mark 16/14
– Inner tube diameter 4.8 mm: Slide to mark 25
– Inner tube diameter 6.3 mm: Slide to mark 17
➜
Insert the tube into the cassette from below without strain.
➜
Snap the cassette onto one of the two support rods of the multi-channel pump
head.
➜
Hold the tube in place with one hand without tensile load and with the other hand,
guide the cassette over the rollers of the multi-channel pump head until the free
side of the cassette engages on the opposite support rod. Ensure that the tube is
positioned correctly between the cassette and the rollers.
➜
Slide the cassette to the stop against the pump drive or cassette on the cassette.
➜ Secure the last tube cassette using the O-rings on the support rods of the multi-
channel pump head.
➜
Set the correct contact pressure on all mounted tube cassettes: Turn the adjusting
screw for the pressure of the tube cassette clockwise and observe the position of
the inner edge of the clamping element.
– Cassette small: Inner edge clamping element between scale marks 1 and 2.
– Cassette medium and cassette large: Inner edge clamping element between
scale marks 3 and 4.
➜
The contact pressure can be adjusted to the actual operating parameters at any
time during operation!
Denomination cassette
Cassette small
Cassette medium
Cassette large
Refer to the tube selection table for the possible hose and
cassette combinations, see section „Tubings – peristaltic
pumps" auf Seite 89.
Note that two stop tubes can only be used in combination
with multi-channel pump heads type C 4 and C 12! The tube
stoppers on both sides prevent the tube from moving during
operation and thus ensure the perfect functioning of the device.
All tubing cassettes can be operated in both directions. It is
always recommended to arrange the cassettes on the pump
head in an alternate manner to ensure easy access to the
adjusting screws at all times.
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