eXact Eco-Check Instruction Manual page 10

pH (Fresh Water) Test Procedure
bt7
NOTE: If NaCl value is less than 3,000 ppm, then use this procedure.
If NaCl value is greater than 3,000 ppm, then use Procedure on page 14.
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*NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
TURN METER ON
Press the ZERO/ON button to power the meter on;
the display will show all annunciators, then the
current MENU selection, followed by the last
reading.
SELECT TEST: bt7
Press and re-press the MENU button until the
display shows the parameter bt7.
RINSE AND FILL CELL WITH SAMPLE
Rinse the CELL at least 3 times with the water
sample you will be testing - rinsing minimizes the
potential for cross-contamination from a previous
sample.
ZERO METER
Press the ZERO/ON button. When the display
shows 0.0 pH, the sample is ready for testing. Tilt
the meter to discard about 0.2mL of water sample
in order to leave room for liquid reagent.
ADD REAGENT AND CAP
Shake the bottle of eXact
486657 to mix the chemical in the bottle. Then, add two
(2) drops of eXact
meter cell with mixing cap.
PRESS "READ" AND MIX
Press READ
cap, and mix the sample by turning the meter upside-
down repetitively during the 20 SECOND countdown.
READ RESULT DISPLAYED
When timer displays 1
cursor will move across the display while the meter
prepares to measure the sample. Record result
displayed (this result is automatically stored in bt7
Menu). After testing is completed, rinse cell immediately.
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®
Reagent P-pH, Part No.
®
Reagent P-pH to the cell and cap
P
The