User guide

I-E67-84-1B February,2002 8-14
When using the Manual Nernstian State, the
process temperature will be automatically set
to 25 C. To adjust the temperature to other
o
values, use the Temperature Calibrate State
and set the temperature to the new value as
specified in Section 6, Calibrate Mode. The
allowable solution temperature range is 0 to
140 C.
o
Set the Temperature Compensation State to
Manual Nernstian State using the following
procedure:
1) Select the TC.TYPE State using the Select
Key.
2) Move to the MANUAL Nernstian State using
the Next Key.
3) Set the TC.TYPE to MANUAL using the Enter
Key.
Automatic Nernstian State (Basic/Advanced)
Automatic Nernstian temperature compensation
requires an input from a temperature sensing
device. The input can be either from a Pt100
or 3 kohm Balco RTD.
Automatic Nernstian temperature compensation
corrects for temperature effects caused by
sensor and is only applicable for the pH
Analyzer State. The displayed process
variable (i.e., pH) is standardized to 25 C,
o
and the allowable solution temperature range
is 0 to 140 C.
o
Set the Temperature Compensation State to
Automatic Nernstian State using the following
procedure:
1) Select the TC.TYPE State using the Select
Key.
2) Move to the AUTO Nernstian State using
the Next Key.
3) Set the TC.TYPE to AUTO using the Enter
Key.
Automatic Nernstian With Solution Coefficient
State (Advanced)
The Automatic Nernstian With Solution
Coefficient State compensates the sensor
output to a reference temperature of 25 C using
o
the Nernst Equation and a solution