LaMotte TRACER Mode D'emploi page 4

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.
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 between 0.5 and 0.7. In the salinity
mode the range is 0.4 to 0.6 auto. 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 ratio while in the TDS measurement mode
(ppm or mg/L):
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 the Displayed Temperature Units
To change the displayed temperature units between °C or °F:
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 automatically shuts the meter off 10 minutes after the
most recent button press:
Auto Power OFF Disable
1. To disable the Auto Power Off feature:
2. Turn the unit on.
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