Basic Operation; Powering The Tracer; Electrode Recognition; Automatic Calibration - LaMotte PockeTester 1766 User Manual

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BASIC OPERATION

Powering the TRACER

The Tracer uses four CR 2032 Lithium Ion batteries. If the batteries are
weak, the BAT indicator will appear on the display. Press the ON/OFF
button to turn the TRACER on or off. The auto power off feature will
shut the TRACER off automatically after 10 minutes after the last button
push.

Automatic Calibration

When the TRACER is turned on, it will enter the Automatic Calibration
mode. SELF and CAL will appear while the calibration is in progress.
After the calibration is completed, the SELF and CAL display icons will
extinguish.

TDS Conversion Ratio

The TDS value is determined by multiplying the conductivity
measurement by a known conversion ratio factor. The meter allows
the selection of a conversion ratio factor in the range of 0.4 to 1.0. The
selected ratio will vary with application but is typically set between 0.5
and 0.7. In the salinity mode, the ratio is fi xed at 0.5. The stored ratio
factor will briefl y appear in the lower temperature display when the
meter is fi rst turned on or when changing the measurement function to
TDS.
To change the ratio while in the TDS measurement mode:
1. Turn the TRACER on.
2. Press and release the CAL/RECALL
button twice. The stored ratio will appear
in the display.
3. Press the MODE/HOLD button to
change the ratio value in steps of 0.1.
4. When the desired ratio is displayed,
press and release the CAL/RECALL
button to store the value and return to the
normal mode.
5. If no buttons are pressed for 5 seconds,
the meter will return to the measurement mode.
8 LaMotte TRACER pH/TDS/Salt PockeTester
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