4
Total Alkalinity Test Procedure
AL
AL1
1
2
4
REMOVE STRIP
Remove one (1)
eXact
®
Strip Micro AL, Part No.
486641
from the bottle before beginning the test.
Set the strip in a dry, convenient place and recap
the bottle immediately.
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
stored reading in memory.
DIP STRIP AND PRESS “READ”
Dip the
eXact
®
Strip Micro AL, Part No. 486641
into the
CELL
and immediately press
READ
. This starts the
20
SECOND
countdown timer. During this time move the
strip in a gentle back and forth motion (approx. 2
strokes/sec).
Remove and discard the strip after “1”
on the display disappears*
. NOTE: For water tempera-
tures above 95°F/35°C, remove and discard the strip when
the timer displays “10”, allow countdown to continue.
RECORD RESULT DISPLAYED
The cursor will move across the display while the meter
prepares to measure the sample. Record result displayed
(this result is automatically stored in AL1 Menu). After
testing is completed, rinse cell immediately.
ZERO METER*
Press the
ZERO/ON
button. The cursor will move
across the display, followed by
0.00 PPM
.
The sample is ready for testing.
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
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cell to capacity with the water sample.
SELECT TEST: AL1
Press and re-press the
MENU
button until the
display shows the parameter AL1.
5
3
7
NOTE: Alizarin Red S and citric acid react with the Total Alkalinity in the sample to form a red color directly proportional
to the alkalinity in the sample.
6
*
NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
