Getting Started - LaMotte Tracer 1766 Manual

TESTING

Getting Started

¬ Remove the cap from the bottom of the Tracer to expose the pH
electrode, reference junction and conductivity electrodes.
¬ Before the first use or after storage, soak the electrode in tap water or
pH 4 buffer solution for about 10 minutes.
¬ Before first 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 moves to
the very tip of the electrode. The electrolyte should fill the circular
junction window at the tip of the electrode.
¬ White KCL crystals may be present in the cap or on the electrode.
This is to be expected depending on the length of time in storage.
These crystals will dissolve while soaking the electrode or they can
be rinsed away with tap water.
¬ For best results calibrate with pH 7 buffer solution first, then calibrate
with the buffer solution closest to the expected pH value of the solution
or material to be tested.
¬ To preserve the pH electrode life keep the sponge in the protective cap
soaked with tap water or pH 4 buffer solution.
¬ For best results, calibrate for conductivity with a standard in the
expected range of the sample. For maximum accuracy calibrate from
low conductivity value standards to high value standards.
¬ When the meter is calibrated for conductivity, salinity or TDS the meter
must be in the conductivity mode. See page 14. For storage see page
17.
Changing Measurement Function
The meter can be set to measure pH, Conductivity, TDS, or Salinity. To
change the mode:
1. Press and hold the MODE button for 2 seconds and the display will
begin to scroll through the units.
µs (Conductivity: pH; ppm S (Salinity); ppm (TDS); mg/L (TDS
NOTE: The "HOLD" finction cannot be on when changing the
measurement function. If "HOLD" is displayed in the lower left corner
of the display, briefly press the MODE button to turn it off.
9