PART THREE - OPERATION
SECTION 4 - TRANSMITTER CALIBRATION
Rev. 0-201
PRO-series Model C3 Conductivity Transmitter
51
4.3 DRY-CAL Method
(highly recommended)
SELECT CELL K
(sensor’s GLI-certified
“K” value)
9.
After the “ZERO: CONFIRM ACTIVE?” screen appears,
press
ENTER key
to return the analog output to its ac-
tive state (MEASURE screen appears).
This completes zeroing the sensor.
Each GLI enhanced performance conductivity sensor has
two unique, GLI-certified values that must be entered to
complete a DRY-CAL calibration:
•
Sensor CELL K value shown on a label attached to its
cable or to the inside cover of its optional junction box.
•
Temperature T FACTOR shown on the same label.
(Since the inherent ohm value of the Pt 1000 RTD tem-
perature element built into each sensor varies slightly,
GLI tests each sensor to provide its specific T FACTOR.)
If these two GLI-certified values were previously entered
during initial setup (Section 3.2 under their respective sub-
headings), DRY-CAL calibration is complete. If the certified
values have not been entered, use the steps in the following
subsections “SELECT CELL K” and “SET T FACTOR.”
Recommendation:
For best accuracy when using a new
sensor or after cleaning an existing sensor, perform a
“RESET CALIBRATE” using the TEST/MAINT menu (PART
THREE, Section 5.8) before calibrating.
1.
Press
MENU key
to display a “MAIN MENU” screen.
If the
screen is not showing, Use
Ø
Ø
or
×
×
key
to display it.
2.
Press
ENTER key
to display
.
3.
Press
Ø
Ø
key
until
screen appears.
4.
Press
ENTER key
to display
.
5.
Press
Ø
Ø
key
until
screen appears.
