Taylor K-6520

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REAGENTS: 2 x R-0833 DI Water 2 x R-0868-25C Conductivity Solution 2500 uS (1273 ppm NaCl)

COMPONENTS: 1 x 5843 Instruction 1 x 6520 Meter, TechPro IITM Model TP1, 0-19.99 mS

CONDUCTIVITY/TDS MEASUREMENT

1. Rinse sample well three times with sample to be measured.
2. Refill sample well with sample to be measured.
3. Press COND/TDS key to read conductivity/TDS and/or temperature.
4. Rinse sample well three times with R-0833 DI Water (or tap water) when finished with the instrument.

INSTRUMENT CALIBRATION NOTE: For calibration, conductivity standard solution should be approximately room temperature (25 degrees C/77 degrees F).

1. Rinse sample well three times with R-0868-25C Conductivity Solution 2500 uS (1273 ppm NaCl) or other standard solution.
2. Refill sample well with standard solution.
3. While pressing the COND/TDS key, adjust the COND CAL control with finger until display reads the value of the standard solution.
4. Repeat steps 3 and 4 to verify the setting.
5. Replace COND CAL cap plug.
6. Rinse sample well with R-0833 DI Water (or tap water).

CHANGING FROM CONDUCTIVITY (uS) TO TDS (ppm NaCl) NOTE: TDS (ppm NaCl) to Conductivity (uS) is the reverse.

1. Dry instrument THOROUGHLY.
2. Remove the 4 bottom screws and carefully open instrument.
3. Locate dip switch labeled "TEMP COMP" on the circuit board.
4. Set switch number 3 to the on position.
5. Carefully turn instrument over and press the COND/TDS key. The displayed reading will be in ppm NaCl.
6. Replace bottom, ensuring the sealing gasket is installed in the groove of the top half of the case. Tighten screws securely.

CHANGING FROM CENTIGRADE TO FAHRENHEIT NOTE: Degrees F to degrees C is the reverse.

1. Dry instrument THOROUGHLY.
2. Remove the 4 bottom screws and carefully open instrument.
3. Locate dip switch labeled "TEMP COMP" on the circuit board.
4. Set switch number 4 to the off position.
5. Carefully turn instrument over and press the COND/TDS key. The displayed reading will be in Fahrenheit (although "degrees F" will not be shown).
6. Replace bottom, ensuring the sealing gasket is installed in the groove of the top half of the case. Tighten screws securely.

BATTERY REPLACEMENT

1. Dry instrument THOROUGHLY.
2. Remove the 4 bottom screws and carefully open instrument.
3. Carefully detach battery from circuit board. Replace with 9 volt alkaline battery.
4. Replace bottom, ensuring the sealing gasket is installed in the groove of the top half of the case. Tighten screws securely.

TEMPERATURE EXTREMES

Solutions in excess of 71 degrees C/160 degrees F should not be placed in the sample well; this may cause damage. Care should be exercised not to exceed rated operating temperature. Leaving the TP1 Meter in a vehicle or storage shed on a hot day can easily subject the instrument to over 66 degrees C (150 degrees F). This will void the warranty.

CLEANING ELECTRODES

The sample well should be kept as clean as possible. Flushing with clean water following use will prevent buildup on electrodes. However, if very dirty samples--particularly scaling types--are allowed to dry in the sample well, a film will form. This film reduces accuracy. When there are visible films of oil, dirt, or scale in the sample well or on the electrodes, use a foaming non-abrasive household cleaner. Rinse out the cleaner, and your TP1 is ready for accurate measurements.