Model C53 Conductivity Analyzer (universal-mount 1/2 DIN)
Rev. 5-1000
6
CONDENSED OPERATING INSTRUCTIONS
D. CALIBRATING THE ANALYZER -- (continued)
configuring the sensor characteristics during initial startup, and
DRY-CAL eliminates the need for
conductivity reference solutions.
This method also automatically sets the analyzer measuring
range to match the inherent range of the sensor’s cell constant. For more details about the benefits
of DRY-CAL, refer to the “Calibration Tip!” in PART THREE, Section 5.1.
NOTE:
DRY-CAL eliminates the need for periodic re-calibration! The only requirement, depending
on the application, may be to periodically clean the sensor. Only when the sensor is re-
placed is it necessary to perform a new DRY-CAL calibration.
Calibration Tip!
Each contacting conductivity sensor has a unique zero point and offset. Conse-
quently, when calibrating a sensor for the first time, always zero it according to step 1. Zeroing
provides the best possible measuring accuracy, and eliminates any discrepancy between Sensor A
and B measurement channels.
DRY-CAL calibration, routinely attained while configuring the analyzer for sensor characteristics, re-
quires entry of the sensor’s GLI-certified “CELL K” value and temperature “T FACTOR” which are
unique to each sensor. When using two sensors, enter each unique set of values using respective
sensor menu screens.
1.
Zero the sensor if it is being calibrated for the first time. If not, disregard this step and perform
steps 2 through 14.
Zeroing Tip!
If at any time during zeroing, the “ZERO: CONFIRM FAILURE?” screen appears,
press
ENTER key
to confirm. Then, use the
×
×
or
Ø
Ø
key
to select between “CAL: EXIT” or
“CAL: REPEAT” and do one of the following:
•
With the “ZERO? (CAL: EXIT)” screen selected, press
ENTER key
. After the “ZERO:
CONFIRM ACTIVE?” screen appears, press
ENTER key
to return the analog outputs and
relays to their active states (MEASURE screen appears).
•
With
the
“ZERO?: (CAL: REPEAT)” screen selected, press
ENTER key
to repeat zeroing.
A. Make sure that the sensor is dry before zeroing.
B. Press
MENU key
to display
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7(670$,17
(;,7
.
C. With the “CALIBRATE” line selected, press
ENTER key
to display
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(;,7
.
D. With the “SENSOR A” line selected, press
ENTER key
to display
.
E. Use
Ø
Ø
key
to select the “ZERO” line, and press
ENTER key
to display
.
(continued on next page)
