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9. Prime the tube
To prime the tube direct the dispense tube towards the reservoir and hold down the GO key.
As soon as the tube is primed, release the key and the pump will stop.
10. Entering the dispense volume
Press 1 to 0 to enter your required volume. Note that the digits move from right to left with
the decimal point staying stationary. The unit will always display on the top line the range in
which you are working.
To correct an error entry press the back space key.
Press GO to start dispensing.
The unit will remember the volume only for this single
dispense. Following this dispense, the unit will revert to
the previously displayed volume. In order to enter the
typed volume into the unit’s memory, press the Enter
button after entering the volume.
11. The STOP button
The STOP button will stop the dispense immediately. The unit “remembers” the remaining un
dispensed volume it will display the amount you dispensed so far. Press GO and the unit will
dispense the remainder of the volume you originally wished to dispense.
If you prefer the unit to “forget” the remaining volume press the ESCAPE key after you
pressed the STOP key. The unit will display the last volume you entered.
12. Changing the pumps direction
The pump controller can be used for dispensing or aspirating reagents. The slide switch on
the left side of the unit sets the direction that the pumps’ rotor rotates.
You can not change direction when the pump is in dispense mode. You can however press
the STOP key, change direction by moving the slide switch, and continue by pressing the GO
key allowing the pump to dispense or aspirate the remainder of the entered volume in the
reversed direction.
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13. Interval Dispense
You can set the unit to dispense any volume for a number of times in predefined intervals.
This feature is useful in repeatable operations either in manual mode or when the dispense
head is held by a robotic arm. Intervals can be set between 0.5 sec to 100 minutes.
To set repeat dispensing:
1
Using the U/D keys scroll to the screen saying “Interval
Enter?”
2
Press Enter and you are asked to enter the Delay in
minutes and seconds. Any number up to 99:59 will be
accepted whereby any number bigger than 59 for the
seconds will be rejected. Using the numeric keys enter
the numbers of minutes and seconds. The number ‘00.00
represents ½ second. Press Enter to confirm.
3
Repeats screen asks you to enter the number of
repeats—from 1 to 98. Entering 99 repeats will result in
continuous number of dispenses which can only be
stopped by pressing the STOP button. Using the numeric
keys enter the number of repeats. Press Enter to confirm
4
You can exit the interval mode by pressing the ESCAPE key.
14. Pump speed adjustment
To adjust the dispense speed scroll the menu using the U/D arrows until the “Speed Enter?”
Is displayed. Press Enter and the screen will display Speed with 8 bars on bottom line. Use
the U/D keys to increase or decrease number of bars. More bars
represent higher speed. Press the Enter key to enter the desired
speed into the instruments memory.
15. Continuous dispense mode
To run the pump continuously scroll the menu using the U/D arrows
until “Constant Enter?” Is displayed. Press Enter and the screen will
display “Constant Stop/Go”. Press the “GO” button to start the pump
and the ”STOP” button to stop it at any point.
Press the ESCAPE key to leave the continuous dispense mode.
Please note:
running the peristaltic tubes dry over a long period will
shorten their life.
