Scilogex Unoverse Peristaltic Pump Dispense 9100 - Manual (Page 5)

4. Gravimetric pump calibration procedure
Pump flow performance is subject of many factors among them the condition of the
peristaltic tube and the viscosity of the reagent. It is therefore important that you
calibrate the pump before it is commissioned and at periodic intervals.
IMPORTANT: CHOOSE THE CALIBRATION VOLUME THAT MATCHES THE
RANGE YOU ARE MOST LIKELY TO USE IN YOUR APPLICATION.
The default calibration volume is 1.000. You can however choose any other
calibration volume which is most suitable for your application.
1. Press ‘CAL + START’ to display the default calibration value of 1.000
2. Carry out five dispenses into a vessel and establish the gravimetric volume
dispensed in each operation.
3. Calculate the mean delivery volume.
4. Enter the calculated mean value into the unit by pressing ‘CAL+UP’ to
increase the displayed volume or ‘CAL+DOWN’ to decrease.
5. The unit is now ready for use and you can now set the volume you would like
to dispense.
Calibration using other than the default calibration value
1. Press ‘CAL + START’ to display the default calibration value of 1.000ml.
2. Press ‘CAL+RANGE’ to move the decimal place so that the unit displays the
volume in the range in you prefer for example if your work involves
dispensing ml’s rather than μ’s, move the decimal point to display 10.00
3. Press and hold ‘VOLUME+UP’ or ‘VOLUME+DOWN’ until the desired
volume for calibration is displayed.
4. Carry out five dispenses and establish the gravimetric volume dispensed in
each operation.
5. Calculate the mean delivery volume.
6. Enter the calculated mean value into the Unoverse unit by pressing
‘CAL+UP’ to increase the displayed volume or ‘CAL+DOWN’ to decrease the
displayed volume.
7. The unit is now ready for use.
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3. The choice of tubing
The unit can work either with fixed length tubing—75mm long within the tube clamp,
or with continuous tubing which in effect does not have any length restriction. In
both cases, the correct tube clamps have to be installed in the clamp.
There is one size of clamp for the fixed clamp tubing which is supplied as part of the
tube.
For the continuous tubing there are three sizes of clamps.
1. Marked ‘1’ for ID1.0mm tube
2. Marked ‘2’ for ID 2.0mm tube
3. Marked ‘3’ for ID 3.0mm tube
The easiest roller position for tube
replacement is when one roller is at
the top of the pump. You can turn the
roller wheel with your fingers until you
reach this positioning.
When using continuous tubing, make
sure that the tube is fitted so that it is
in contact with the inner surface of the
tube clamp.