Ph Test Procedure - eXact Micro 7+ Instruction Manual

PH2
REMOVE STRIP
1
Remove one (1) eXact
beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.
TURN METER ON
2
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: PH2
3
Press and re-press the MENU button until the display shows the parameter PH2.
FILL METER WITH SAMPLE
4
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 test. Finally, fill cell to capacity (4ml) with
the water sample.
ZERO METER
5
Press the ZERO/ON button. When the display shows 0.0 PH, the sample is ready for testing.
DIP STRIP AND PRESS "READ"
6
Dip the eXact
This starts the 20 SECOND countdown timer. During this time move the strip in a gentle back
and forth motion. Remove and discard the strip after "1" on the display disappears (if water
temperature is above 100°F/38°C remove and discard the strip when the time displays 15,
countdown continues). The cursor will move across the display while the meter prepares to
measure the sample. Record result displayed (this result is automatically stored in PH2). After
testing is completed, rinse cell immediately.
should be 40-140 ppm.
PH2: pH reacts with Phenol Red, which is yellow at pH 6.1, but forms a red color as the pH level
rises. Maximum red is at about pH 8.4.
Total Alkalinity Test Procedure
AL4
REMOVE STRIP
1
Remove one (1) eXact
beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.
TURN METER ON
2
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: AL4
3
Press and re-press the MENU button until the display shows the parameter AL4.
FILL METER WITH SAMPLE
4
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 test. Finally, fill cell to capacity (4ml) with
the water sample.
ZERO METER
5
Press the ZERO/ON button. The cursor will move across the display, followed by 0.00 PPM.
The sample is ready for testing.
DIP STRIP AND PRESS "READ"
6
Dip the eXact
This starts the 20 SECOND countdown timer. During this time move the strip in a gentle back
and forth motion. Remove and discard the strip when the time displays 1 (if water
temperature is above 100°F/38°C remove and discard the strip when the time displays 15,
countdown continues). The cursor will move across the display, informing you that it is about to
measure the sample. Record result displayed (this result is automatically stored in AL4). After
testing is completed, rinse cell immediately.
AL4: Total Alkalinity reacts with the Alizarin Red S and citric acid as it is released from the strip to form a red
color, directly proportional to the alkalinity present in the sample.

pH Test Procedure

Strip Micro PH, Part No. 486639 from the bottle before
®
Strip Micro PH, Part No. 486639 into the CELL and immediately press READ.
®
Strip Micro AL, Part No. 486641 from the bottle before
®
Strip Micro AL, Part No. 486641 into the CELL and immediately press READ.
®
NOTE: For best results, Total Alkalinity of the sample
6
PH
AL