6.2 pH measurement (pH mode)
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780/781 pH/Ion Meter, Manual
6.2.3 Limits pH
PARAMETER pH
:
├ limits pH
In the direct measuring modes the pH/Ion Meter has a limits function
which allows the control of the parameter to be monitored. The control
signals are transmitted via the MSB connection to the optional remote
interface (6.2148.010) (see Section 9.5). Out of limits conditions are al-
so shown on the display and documented in the report.
state: ON, OFF
u.limit pH -19.999...14.000...19.999
u.hyst. pH -19.999...0.020...19.999
l.limit pH -19.999...0.000...19.999
l.hyst. pH -19.999...0.020...19.999
The exact way in which the limits function works is described in Sec-
tion 7.4 independent of the mode.
6.2.4 Limits T
PARAMETER pH
:
├ limits T
As well as the primary measuring quantity pH, the temperature can also
be controlled by the limits function. However, you should only activate
the limits function for the temperature when a temperature sensor is
connected, as otherwise an error message will appear.
state: ON, OFF
u.limit -999.9...100.0...999.9 °C
u.hyst. -999.9...0.2...999.9 °C
l.limit -999.9...0.0...999.9 °C
l.hyst. -999.9...0.2...999.9 °C
A detailed description of the remote lines is given in Section 9.5. The
exact way in which the limits function works is described in Section 7.4
independent of the mode.
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