10
LaMotte TRACER pH/TDS/Salt PockeTester
TM
1766-KIT-01 Instruction
TESTING
Getting Started
1. Remove the cap from the bottom of the TRACER to expose the pH
electrode, reference junction and the conductivity electrodes.
2. Before
the
fi
rst use or after storage, soak the electrode (with cap
removed) in tap water or pH 4 buffer for 10 minutes.
3. Before
fi rst use, hold the meter by the top battery compartment
and swiftly tap the back of the meter downward into your palm
(not a hard surface)
. This assures that the internal electrolyte
solution moves to the very tip of the electrode. The electrolyte
should
fi
ll the circular junction window at the tip of the electrode.
4. White KCL crystals may be present in the cap or on the electrode.
This is to be expected if the TRACER has been stored for any length
of time. The crystals will dissolve with soaking or they can be rinsed
off with tap water.
5. Calibrate with pH 7 buffer prior to the
fi
rst use or after prolonged
storage.
6. When the meter is calibrated for conductivity, salinity or TDS the
meter must be in the conductivity mode. See page 15. For storage
see page 19.
Changing the Measurement Function
The meter can be set to measure Conductivity, pH, Salinity (ppm), TDS
(ppm), or TDS (mg/L). To change the mode:
1. Turn the TRACER on.
2. Press and hold the MODE/HOLD button for 2 seconds. The display
will begin to scroll through the units.
μ
S or mS (Conductivity)
pH
ppm S or ppt S (Salinity)
ppm or ppt (TDS)
mg/L (TDS)
NOTE
:
1 part per thousand (ppt) equals 1000 parts per million
(ppm). Example: 3.1 ppt = 3,100 ppm
3. Release the MODE/HOLD key when the desired mode is displayed.
NOTE: The “HOLD” function cannot be used when changing the
measurement function. If “HOLD” is displayed in the lower left corner
of the display, brie
fl
y press the MODE/HOLD button to turn it off.
