A&D Weighing MPA-1200 - Manual (Page 31)

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11. CALIBRATING THE PIPETTE USING AN ELECTRONIC BALANCE
The MPA series provide user with a dispensing volume calibration function. Using this
function, it is easy to correct (calibrate) errors due to differences in tips used, etc.
When you need to always control the dispensed volumes in a precise manner, perform
volume calibration as necessary when you change the dispensing volume setting. For
verification of dispensed volumes necessary for calibration, A&D’s pipette accuracy
tester - AD-4212B-PT, FX-300i-PT, or combined use of BM series and BM-014 (Sold
separately) - are useful.
11-1 Volume calibration function (μL calibration function)
This is a function to correct the dispensing volume of the MPA series. Using an A&D
pipette accuracy tester or other appropriate device, measure the volume actually
dispensed as opposed to the selected dispensing volume setting, and then enter the
actual dispensed volume to the pipette to correct its dispensing volume. To calibrate
the dispensing volume, complete the following procedure:
Calibrating the dispensing volume
1. Set the dispensing amount of the MPA series to the volume to which you would
like to calibrate it. (The example is 100μL)
2. Using an electronic balance, measure and record an actual dispensed volume as
opposed to the selected dispensing amount setting. (The example is 95μL)
3. Enter an actual dispensed volume to the pipette by the following procedure.
Selected dispensing volume setting for calibration (μL)
(Example is 100μL.)
[ 1 ] Press the Back key.
[ 2 ] Press and hold the Back key for approx.
three seconds while “AUTO” is selected.
(μL calibration mode)