Integra DOSE IT - Using the Double Pumphead Configuration (Optional)

DOSE IT – Operating instructions V08 Operation
20 INTEGRA Biosciences AG
4.7 Using the double pumphead configuration (optional)
The DOSE IT can be used with a double pumphead and the corresponding 8 mm ID tubing
set (171 088) when it is necessary to quickly dispense large volumes. The double
pumphead configuration also reduces flow pulsation.
W
ARNING
Always switch off the DOSE IT when assembling the double pumphead
configuration.
Be aware of the sharp edges of the pumpheads when assembling them and when opening
and closing the first pumphead for tubing insertion.
When placing the tubing set (171 088) into the double pumphead assembly, gently stretch
the tubing so that inside the pumphead the tubing is taut (avoid loading the tubing in a
loose, slackened way).
W
ARNING
Visually inspect the tubing set Y-pieces for the absence of cracks in the glass.
Cracked Y-pieces may burst during operation and shall not be used.
In the affected programs, change the parameter “No. of heads” before using the double
pumphead configuration.
1 Open the pumphead to gain access to the two fixation
screws and unscrew the pumphead from the housing
using an Allen key # 3.
2 Fix the extension pumphead (171 090) to the housing
using the screws obtained after removing the original
pumphead.
Fixation screws
3 Assemble the two pumpheads by locking the original
pumphead onto the extension pumphead. When turning
the original pumphead in place, ensure that the lock
mechanism engages with an audible click.
Important: The rollers of the two pumpheads must be
out of phase in order to avoid excessive strain on the
motor (torque limits) and to obtain a reduction in flow
pulsation.