Click the settings icon on the bottom
right of the Home Screen.
(Fig. 15.1)
From the settings menu, choose Calibration.
(Fig. 15.2)
Fill the nominal volume of double distilled
de-ionized water by clicking the FILL button
on the calibration screen of the operating panel.
(Fig. 15.3)
34
Calibration
User Calibration Procedure
The E-BURETTE has been laboratory calibrated at its nominal volume.
However, due to changes in environmental conditions and the viscosity
of the media which is dispensed, we recommend gravimetric testing
every 3-12 months. Gravimetric volume testing according to
DIN EN ISO 8655-6 is performed as follows:
15.
1.
2.
3.
Fig. 15.1Fig. 15.2Fig. 15.3
33
Exit
Click on the tick ( ) button to proceed. The piston will empty the barrel and
go to the home position.
Press the ON/OFF button to switch OFF the control panel.
1.
2.
3.
Fig. 13.13
To end working with the E-BURETTE,
press the Exit button
(Fig. 13.13).
The panel will warn the user to turn the
knob in the re-circulation mode.
Error Limits
The error limits (Accuracy and Coefficient of Variation) mentioned in
Product Specifications (Page 1) are in accordance with the nominal capacity
(or maximum volume) indicated on the instrument.
These are obtained by using the instrument with distilled water at
equilibrium, ambient temperature of 20 °C, while operating the device
smoothly and steadily.
The error limits are well within the limits of DIN EN ISO 8655-3.
14.
10
Capacity (ml) Increment
Accuracy
±% ±ml
0.2
CV
±% ±ml
25
50
0.005 ml
0.01 ml
0.01 ml
0.2 0.07 0.007
0.2 0.05 0.07 0.0175
0.2 0.1 0.07 0.035
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