LaMotte Tracer pH/TDS/Salt/Temp PockeTester, Instructions Manual

LaMotte TRACER pH/TDS/Salt PockeTester

TM

 1766-KIT-01 Instruction 

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 speci

fi

 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 veri

fi

 cation should be performed on a monthly/periodic 

basis as needed. The frequency of the veri

fi

 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 12,880

μ

S. 

(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 12,880

μ

S 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 brie

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 y indicate “SA” and 

“End” and then return to the measurement mode. 
NOTE: “SA” will not appear if the calibration fails.