32
with the (2)
corresponding mV
and (3) a
slope
for the electrode. This allows
laboratory generated calibration data for an electrode to be entered in a remote
analyzer where calibration is difficult or impractical.
The pictures show a Manual Calibration for a Total Chlorine sensor using the default
values of 0.00 ppb = 0.00 mV and 8.0 nA/ppm.
Example: MANUAL Calibration for a pH electrode
1.
Calibrate the pH electrode in the laboratory
2.
Record the mV value of some pH Standard, pH 7.00 buffer = 6.8 mV (any pH –
mV pair will work)
3.
Calculate and Record the slope of the electrode, 58.2 mV/pH
4.
Install the electrode into the field mounted sensor
5.
Press MANUAL
and enter the pH value, 7.00 pH,
press mV
and enter the
corresponding mV value, 6.8 mV,
press OK
, Accept Offset?,
press YES
, enter
slope 58.2 mV/pH,
press OK
, Accept Slope?,
Press YES
6.
The Calibration is complete, the Offset and Slope values are displayed,
press
OK
to exit.