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Clearing the Stored Memory
Turn the TRACER on. Press and hold the ON/OFF button for 4 second
the display will briefly desplay "clr" when the memory is cleared.
CALIBRATION
For the most accurate results, allow sufficient time for the temperature
of the probe to reach the temperature of the sample before calibrating.
This will be indicated by a stable temperature reading on the display
Meter accuracy verification should be performed on a periodic basis as
needed. If calibration is required, the meter must be in the
conductivity mode to perform all calibration for conductivity, TDS
and Salinity. The meter can perform a calibration and store the data for
each of the three ranges – low, medium and high. The automatic
calibration recognition procedure will recognize conductivity standards
of 84 µS (Low), 1413 µS (Medium) or 12,880 µS (12.88 µS) (High).
(See Page 5). Always calibrate in the range closest to the expected
measurement value. For salinity samples within the range of 1,000 to
9,999 ppm salinity, calibrate with a 12,880 µS calibration standard.
1. Fill a sample cup to 20 mL line with a conductivity standard.
NOTE: The meter allows for a 1, 2, or 3 point calibration. If
calibration is done for more than one point, the lowest
concentration should be done first to obtain the best accuracy.
Calibrate the ranges from low to high
2. Press the ON/OFF button to turn the TRACER on. Insert the
electrode into the standard. Tap or stir the sample with the Tracer
to dislodge air bubbles.
3. Press and hold the CAL/RECALL button for approximately 2
seconds. "CAL" will appear and the display will flash.
4. The meter will automatically recognize and calibrate to the
conductivity standard. The display will briefly indicate "SA" and
"End" and then return to the measurement mode.
NOTE: "SA" will not appear if the calibration fails.
5. The calibration range indicator will appear on the display for each
range that is calibrated during a power on cycle.
L
Low Range, 84 µS/cm
M
Medium Range, 1413 µS/cm
H
High Range, 12.88 mS/cm (12,880 µS/cm)
12
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