Suntex PC-3110-RS, Руководство по эксплуатации, Страница: 50 / 68

8.3.4 Define mode
There is a factory default 5 buffer standard solutions pH/temperature table
which may be modified and saved by users. When users have their own buffer
solutions, they may create or modify the data sheet and then save it in the
memory of transmitter. Under this calibration mode, the sensor does not do the
zero-point calibration and slope range determination. (See appendix Table 3,
pH/temperature table of define(built-in) standard buffers.)
8.3.5 Definition of calibration parameter
You can calibrate the electrode by one point or up to three points of standard
solutions by any sequence. As different calibration point method is applied, the
definition of the zero point and slope different.
Calibration point Determination The showed calibration value
One point
calibration
Asy
Zero point (Asy, offset or Zero point)= Asy
1.If not calibrated, Slope = Theoretical slope
2.If calibrated, Slope = Slope of last calibration
Two or three
point calibration
Asy
Slope
Zero point (Asy, offset or Zero point)= Asy
Slope = Slope
*
Note: To obtain a new zero point(Asy) and Slope
by applying linear regression.
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