LaMotte TRACER Mode D'emploi page 4

BASIC OPERATION
„ Powering the TRACER
The Tracer uses four CR2032 Lithium Ion batteries. If the batteries are weak,
the BAT indicator will appear on the display. Press the ON/OFF key to turn
the TRACER on or off. The auto power off feature will shut the TRACER off
automatically after ten minutes of inactivity.
„ TDS Compensation 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 at 0.7. In the salinity mode, the ratio is fixed at
0.5. The stored ratio factor will briefly appear in the lower temperature display
when the meter is first turned on or when changing the measurement function
to TDS.
„ To Change the TDS Conversion Ratio:
1. Turn the TRACER on.
2. Press and release the CAL button twice. The stored
ratio will appear in the display.
3. Press the MODE button to change the ratio value in
steps of 0.1.
4. When the desired ratio is displayed, press and release
the CAL 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.
„ Changing Temperature Units
To change the displayed temperature units between °F or °C:
1. With the TRACER off, press and hold the CAL button.
2. With the CAL button pressed, momentarily press the ON/OFF button. When
SELF CAL appears in the display, release the CAL button. The TRACER will
return to the operational mode with the temperature displayed in the new
units.
„ Data Hold
Press the MODE button to freeze the current reading. The HOLD icon will
appear, the reading will be stored. Press the MODE key to return to normal
operation.
„ Auto Power Off
The auto-power off feature will automatically shut the meter off 10 minutes
after the last button was pressed. To disable the auto-off feature:
1. Press the ON/OFF button to turn the meter on.
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