PART THREE - OPERATION
SECTION 4 - TRANSMITTER CALIBRATION
PRO-series Model E3 Electrodeless Conductivity Transmitter
6
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tion, the reference solution must have the
same chemical composition as the process.
Also, its value should be near the typical
measured process value. When the value is
between 100 and 72,710 ppm NaCl, the data in
step 1 and TABLE E of Section 4.3, subsection
“COND CAL Method” can be used to prepare
the reference solution.
B. Thoroughly rinse the clean sensor in de-
ionized water. Then immerse the sensor in the
prepared reference solution.
Important: Allow
the sensor and solution temperatures to
equalize.
Depending on their temperature dif-
ferences, this may take up to 30 minutes.
NOTE:
Suspend the sensor to prevent it from
touching the container.
Simply laying
it into the container will produce
calibration error.
If the sensor is tee-
mounted, use a smaller container. Ide-
ally, convert a tee of the same size and
material as the mounting tee into a
calibration container by sealing two of
its ends.
2.
Press
MENU key
to display a “MAIN MENU” screen.
If the
screen is not showing, use
Ø
Ø
or
×
×
key
to display it.
3.
Press
ENTER key
to display
.
4.
Press
ENTER key
again to display
.
5.
Press
ENTER key
to display
.
With the sensor in the process (or reference solution),
press
ENTER key
again to confirm. This active
screen appears showing the
measurement reading.
NOTE:
During calibration, the analog output is auto-
matically “held” at the last measured value.
