TRUBLUE USER’S MANUA
L
Water Level, Conductivity, and Barometric Pressure Data Loggers
TE CONNECTIVITY SENSORS
///
TRUBLUE USER’S MANUA
L
08/2016
Page 13
11. Conductivity - Continued
STEP 3.
EQUALIZE THE TEMPERATURE
A. Fill the beaker with enough calibration solution
B. Insert the TruBlue into the solution and gently stir the solution with the datalogger to insure there are no
bubbles formed on the conductivity sensor. Allow at least 30 seconds for sensor and solution temperatures to
equalize
STEP 4.
CALIBRATE WITH TRUWARE
The CTD datalogger should be connected to your computer with TruWare open and a Meter View window
displaying a conductivity reading:
A. With the TruBlue inserted in the calibration solution, hold the mouse pointer over the conductivity reading and
“right click” to
get to the “Conductivity Calibration” window.
B. Enter the conductivity level of the calibration solution in the first row and column of the calibration window
under “User Input” labeled “Point 1.” Example: 47,600 uS.
C. Click on “Read Conductance for Point 1”
D. After about 28 seconds the remaining values will populate in the remaining columns. The Cell Constants
should be ~0.5000.
E. Select Save. Remove the CTD datalogger from the so
lution. Close the “Conductivity Calibration” window.
F. Take a reading in solution; it should be near or around 47,600 uS. It may take a few readings to collect before
reaching your target level.
