Uline OHAUS EXPLORER H-4737 Manual Del Usuario página 27

PIPETTE ADJUSTMENT
Pipette adjustment checks the accuracy and precision
values of pipettes by weight analysis. The balance has a
built-in density reference table for water at temperatures
between 10 ° C and 30 ° C. If other liquids are used for
pipette calibration, enter the liquid's density at current
room temperature in g/cm
made within the balance, the atmospheric pressure is
also required.
Pipette adjustment can be accomplished manually
(with a key press after each step) or automatically
(weights are automatically recorded when stable).
Calculations made within the balance provide results of
inaccuracy and imprecision. Up to 30 samples can be
used.
PIPETTE ADJUSTMENT – MANUAL (DEFAULT)
1. Confirm the default values displayed are correct:
• Nominal, Inaccuracy, Imprecision, Density,
Atmospheric Pressure, Water Temperature, etc.
2. To edit the default values, touch the EDIT SETTINGS
button.
• Settings available: Nominal Capacity, Water Temp,
Inaccuracy, Atmospheric Press, Imprecision, Pipette
Name, Pipette Number
• Functions available: RETURN TO APPLICATION
3. To adjust the pipette nominal capacity value, touch
the NOMINAL button.
4. Enter the nominal capacity in the keyboard screen
that appears, and press √.
5. The display returns to the previous screen with the
new value highlighted.
NOTE: Capacity can be measured in mL or µL,
depending on the application setup.
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OPERATION CONTINUED
. Since all calculations are
3
6. To adjust the water temperature, touch the WATER
TEMP button.
7. The balance calculates water density based on
the water temperature value entered. Measure
the actual water temperature using a precision
thermometer.
8. A numeric input window is displayed.
9. Key in the desired temperature, then press √.
10. The display returns to the previous screen with the
new value highlighted.
11. Continue to enter the required information following
the above procedure.
12. When finished, press RETURN TO APPLICATION. The
application home screen appears, and you can
begin the pipette adjustment process.
BEGIN PIPETTE ADJUSTMENT PROCESS
1. Touch BEGIN PIPETTE ADJUSTMENT.
2. Follow the screen instructions, to place container on
the pan. Press TARE.
0721 IH-4737