Performing Calibration - OHAUS STARTER 5000 Manual De Instrucciones

STARTER 5000 Bench pH Meter
STARTER 5000 will give an electrode condition icon to show the performance of the pH electrode
according to the calibration data. Normally, if we get sad face icon after a proper calibration, you
may need to replace the pH electrode with a new one.
STARTER 5000 automatically corrects for the temperature dependence of the buffer pH values.
E.g. for US standard buffer group "1.68, 4.01, 7.00, 10.01" reference the following table:
5° C 1.67
10° C 1.67
15° C 1.67
20° C 1.68
25° C 1.68
30° C 1.68
35° C 1.69
40° C 1.69
45° C 1.70
50° C 1.71
For example, with calibration buffer 10.01 at 15° C, the calibration result should be 10.12 pH.
4.1.2

Performing calibration

After rinsing the pH electrode, put the electrode into the first buffer, stir for 10s then press
start the calibration. When in calibration, the signal icon blinks. When the endpoint has been
reached,
are now 3 options:
Quit the calibration and go back to main interface
Finish current point calibration, go to calibration result interface
Do the next point calibration
Note: During calibrating process, the ST5000 is always in Auto Endpoint Mode.
Note: The use of 3-in-1 pH electrode which include the temperature sensor or a separate
temperature electrode is recommended. When using the MTC mode, enter the correct
temperature value and keep all buffer and sample solutions at the set temperature.
4.01 7.09
4.00 7.06
4.00 7.04
4.00 7.02
4.01 7.00
4.01 6.99
4.02 6.98
4.03 6.97
4.05 6.97
4.06 6.96
appears while
10.25
10.18
10.12
10.06
10.01
9.97
9.93
9.89
9.86
9.83
disappears and current point calibration is finished, There
EN-11
to