Ph Calibration; For Usa Standard Buffer; 1-Point Calibration - Thermo Scientific Alpha pH 560 Manual

For USA Standard
Thermo Scientific Alpha pH 560
1.800.561.8187
NOTES:
The pH Controller is capable of calibration of up to 2 points using

pH Calibration

USA or NIST pH buffer standards. All new calibration values will
automatically override existing calibration data. pH buffer values are
referenced to 25 °C. Make sure the measurement mode is set to pH.
(Refer Page 5.7 for switching measurement modes). All pH buffer
values have window of up to 1 pH tolerance during calibration.
Calibration error can be occurred if the measured pH value exceeds this
window. If you wish to abort the pH calibration, Press
simultaneously and the pH Controller reverts to pH measurement
mode.
Make sure that the pH Controller is set to accept USA standard buffer
in the Setup mode. (Refer Page 5.6 for Buffer Selection Settings) The
Buffer
factory default is USA standard. It is recommended that you perform 2-
point calibration at room temperature (25 °C), starting with the first
buffer at pH 7.00 followed by any other buffer value. (pH 4.01, 1.68,
10.01 or 12.45).

1-Point Calibration:

Figure 4–15. USA Buffer Single-Point Calibration
www.
To exit calibration mode at any time during calibration, Press
and keys simultaneously (escape). The pH Controller returns to
the measurement mode and the old calibration values remain active
The calibration is always carried out in the units of measurement
(pH or mV), selected in setup mode
From pH measurement mode p p ress CAL key to enter
1 1
calibration mode as described in page 16. The LCD shows
'C C AL PH'. P P ress ENT key to begin calibration.
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