38
To check the transducer move to pH measurement mode and apply
Е
U to
the transducer input, mV, according to the equation:
Е = Е
i
+ S
t
(pH − pH
i
)
,
where
Е
i
,
pH
i
are the coordinates of electrode system isopotential point
given in the
PROBE PARAMETERS
menu according to Fig. 2.11-2.13;
pH
is a simulated value of hydrogen-ion activity in the range from 0 to
10 pH;
S
t
is the electrode system slope, mV/pH.
S
t
value is found from the equation
S
t
= −0.1984
(273.16 + t),
where t is pH-meter readings at temperature of,
С.