Honeywell APT2000 Series, User Manual, Page: 22 / 48

Note
CAL
ENTER
Operation
22
Calibration with calibration solution
Be sure to use known calibration
solutions and the respective tempe-
rature-corrected table values (see
Calibration Solutions, Pg. 38).
Activate calibration by pressing the
CAL
key.
Using the
Y
,
"
keys enter
mode code “1100” and then press
ENTER
.
Immerse the sensor in the calibra-
tion solution.
After approx. 6 sec the lower dis-
play alternately shows the conduc-
tivity and temperature values. Read
the conductivity value correspond-
ing to the displayed temperature
from the table of the used calibra-
tion solution (for tables see Pg. 38).
Using the
Y
,
"
keys change the
cell factor until the display shows
the conductivity value from the
table.
Make sure that the temperature is
stable during the calibration proce-
dure.
Press
ENTER
to confirm the cell
factor.
The Transmitter remains in the Hold
state. You can end the Hold state
with
ENTER
. After 20 sec (mea-
sured value stabilization) the Trans-
mitter returns to measuring mode.