PART THREE - OPERATION
SECTION 5 - ANALYZER CALIBRATION
Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
64
5.3 DRY-CAL Method
(highly recommended)
SELECT CELL K
(sensor’s GLI-certified
“K” value)
the three states that the analog outputs (and relays)
can be in during zeroing:
•
HOLD OUTPUTS:
Holds their present values.
•
XFER OUTPUTS:
Transfers to preset values.
•
ACTIVE OUTPUTS:
Responds to measured values.
With the desired choice displayed, press
ENTER key
to
enter this selection.
6.
With the dry sensor held in air and the “ZERO: IN DRY
AIR?” screen displayed, press
ENTER key
to confirm
and to start automatic zeroing.
7.
After the “ZERO: CONFIRM ZERO OK?” screen ap-
pears, press
ENTER key
to end zeroing.
8.
After the “ZERO: CONFIRM ACTIVE?” screen appears,
press
ENTER key
to return the analog outputs and re-
lays to their active states (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 4.2 under their respective sub-
headings), DRY-CAL calibration is completed. If the certified
values have not been entered, use the steps in the following
subsections “SELECT CELL K” and “SET T FACTOR.”
1.
Press
MENU key
to display
&21),*85(
7(670$,17
(;,7
.
