PRO-series Model E3 Electrodeless Conductivity Transmitter
7
CONDENSED OPERATING INSTRUCTIONS
C. CALIBRATING THE TRANSMITTER -- (continued)
4.
Press
MENU key
to display
.
5.
Press
ENTER key
to display
.
6.
Press
ENTER key
again to display
.
7.
Press
ENTER key
again to display
. The default 25
°
C reference temperature
is suitable for most applications. For another reference, use
arrow keys
to adjust to a different
temperature. In either case, press
ENTER key
to continue.
NOTE:
During calibration, the analog output is automatically “held” at the last measured value.
8.
After a screen like
appears, use
arrow keys
to adjust the slope value to
match the known slope of the reference solution, and press
ENTER key
to enter it.
NOTE:
Measured values are normally compensated using the configured temperature compen-
sation method. However, during calibration the measured value is linearly compensated
by the entered reference temperature and slope value of the reference solution.
9.
With the sensor in solution and the
screen displayed, press
ENTER key
to
confirm. This active
screen appears showing the measured reference solu-
tion value.
10. Wait for the reading to stabilize which may take up to 30 minutes. Then press
ENTER key
. The
“PLEASE WAIT” screen may appear if the reading is still too unstable. After the reading has sta-
bilized, this static
screen appears showing the “last-measured” value.
11. Use
arrow keys
to adjust the “last-measured” value to exactly match the known value of the ref-
erence solution, and press
ENTER key
to it and complete calibration (“CONFIRM CAL OK?”
screen appears).
12. Re-install the sensor into the process.
13. Press
ENTER key
to display the active measurement reading on the “CONFIRM ACTIVE?” out-
put status screen. When the reading corresponds to the actual typical process value, press
ENTER key
again to return the analog output to its active state (MEASURE screen appears).
This completes “COND CAL” calibration. The transmitter is now ready to measure conductivity.
NOTE:
To change the display format of the MEASURE screen (for example from 0-2000 μS/cm to
0-2.000 mS/cm), refer to PART THREE, Section 3.2, subheading “Select DISPLAY FORMAT.”
D. COMPLETING TRANSMITTER CONFIGURATION
To further configure the transmitter to your application requirements, use the appropriate
CONFIGURE screens to make selections and “key in” values. Refer to PART THREE, Section 3 for
complete configuration details.
