LaMotte TRACER POCKETESTER FLUORIDE - Manual (Page 9)

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Powering the Fluoride TRACER
The Fluoride TRACER uses four (4) CR2032 lithium ion batteries. Press the ON/
OFF key to turn the meter on or off. If the batteries are weak, the ‘BAT’ indicator
appears on the LCD. The auto power off feature shuts the meter off automatically
after approximately 12 minutes of inactivity. The auto power off feature may be
temporarily disabled for convenience or for extended polarization time.
Power-On Diagnostics
1.
When the meter is switched ON the LCD displays ‘SELF’ and ‘CAL’
while the meter runs a diagnostic routine.
2. During this time the meter is recalling the user calibration data, perform-
ing self diagnostics & initializing the circuitry.
3. When completed, the meter proceeds to the normal measurement mode.
Calibration
The Fluoride TRACER can be calibrated between 1.0 ppm and 10.0 ppm or
between 0.5 and 5.0 ppm Fluoride ion. The following calibration procedure
assumes the normal 1.0 to 10 ppm range has been chosen.
1.
Fill a sample cup to 20 mL with a 1 ppm fl uoride standard Add one
TISAB TesTab (7024). Crush tablet with Tablet Crusher (0175) and mix
until the tablet disintegrates. Or prepare a traditional 1.0 ppm fl uoride
standard and TISAB reagent, or use pre made mixed TISAB and 1.0 ppm
standard. Pour 20 mLs of this standard solution into the sample cup.
2. Rinse the end of the Fluoride TRACER module in TISAB solution and
wipe thoroughly with paper tissue.
3. Place the Fluoride TRACER in the 1.0 ppm standard/TISAB solution and
switch the instrument ON using the ON/OFF key. The instrument will
now run its self-calibration.
4. The instrument will enter the HOLD mode when stabilized in the 1.0 ppm
solution.
5. Press the CAL key; ‘CAL’ will appear in the display followed by 0.5ppm
and 5.0 ppm. Continue holding until 1.0 ppm is shown. Release the CAL
key. After the display stops blinking the instrument will enter the HOLD
mode.
6. For a 2 point calibration, repeat the calibration procedure with a 10.0 ppm
standard.
7. The instrument is now calibrated and ready for use. The circled ‘L’ and
‘H’ icons on the display indicate that the low range (L) and high range
(H) calibrations have been completed.