Parker SciLog LabTec Installation, Operating, & Maintenance Instructions page 17

Calibration:
1. The LabTec™ will come configured for the installed motor and pump head. This example will
assume a 600 rpm motor and a ™ 1082 head is installed. If you have a different head,
please refer to the manual or contact Parker for assistance. Each EDIT (1 – 10) allows
a choice of tubing, and then accesses built-in master calibration curves.
In addition to adjustments to the motor speed and slow factor, fine tuning of the calibration
is accomplished by using the Re-Cal feature accessible directly from the "RE-CAL" button on
the front of the LabTec™.
2. The RE-CAL feature is accessible from the keypad of the LabTec™ using the "RE-CAL" button
located in the lower right-hand corner. To do this accurately, it is important that you have a
scale available to dispense the aliquot onto that has a readability of 0.1 gm or better.
A graduated cylinder may also be used. This feature is active when the following type of
display is shown:
3. After checking to be sure that the system is primed, Press the RUN key and dispense 10.00 mL
into the container on the scale. Record the weight, and do this for a minimum of 3 times, and
determine the average (AV) aliquot weight. For example, assume you obtained the following
values:
4. Press the "RE-CAL" key on the front panel of the LabTec™, and the following display
will appear:
5. Only the AV parameter can be changed in this display, use the "A" and "B" keys to adjust the
value. In the above example, you would increase the AV value to 10.25. Press the "C" key to
Select and the stored calibration curve will be updated. You may wish to repeat the RE-CAL as
necessary for improved dispensing accuracy.
6. This procedure is performed after all of the EDIT parameters explained below have been
entered into the LabTec™ for that particular aliquot.
VOLUME SET: 10:00 mL
Press RUN when Ready
Trial 1 10.25 gm
Trial 2 10.30 gm
Trial 3 10.20 gm
AV = Average Value 10.25 gm
DV = 10:00
Decr.
Incr.
A B
AV = 10:00
Select
C
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