LaMotte Tracer pH/TDS/Salt/Temp PockeTester Instructions Manual page 15

Calibration Reminder
The "CAL" indicator will appear when the TRACER is in the pH mode
and a calibration is required. The "CAL" indicator will appear if the
meter has not been calibrated after 15 on/off cycles of the meter. Some
applications may require more frequent calibrations than others. The
"CAL" indicator is only a reminder and will not affect function in any
way. The indicator will no longer be displayed when the pH electrode is
recalibrated.
RENEW Indicator
A fl ashing "RENEW" indicator will appear on the display to warn that
the electrode is not performing to expected specifi cations. If cleaning
or recalibration does not cause the RENEW indicator to disappear, the
electrode should be replaced. The RENEW indicator will appear when
the pH electrode slope falls below 70% of a nominal slope.
Conductivity (Salt & TDS) Calibration
Meter accuracy verifi cation should be performed on a monthly/periodic
basis as needed. The frequency of the verifi cation will depend on the
storage and maintenance conditions and the amount of meter use. If
calibration is required, the meter must be in the conductivity mode to
perform all calibrations for conductivity, TDS and salinity. The meter
can perform a calibrations and store the data. The automatic calibration
recognition procedure will recognize conductivity standard of 12,880μS.
(See Page 6). Always calibrate in the range closest to the expected
measurement value. For salinity samples within the range of 1.00 to 9.99
ppt salinity, calibrate with a 12,880μS calibration standard.
1. Fill a sample cup to 20 mL line with a conductivity standard.
2. Press the ON/OFF button to turn the TRACER on. Insert the
electrode into the standard. Tap or stir the sample with the Tracer to
dislodge air bubbles.
3. Press and hold the CAL/RECALL button for approximately 2
seconds until the display begins to fl ash.
4. The meter will automatically recognize and calibrate to the
conductivity standard. The display will briefl y indicate "SA" and
"End" and then return to the measurement mode.
NOTE: "SA" will not appear if the calibration fails.
LaMotte TRACER pH/TDS/Salt PockeTester 1766-KIT-01 Instruction
TM
15