eXact Eco-Check Instruction Manual page 12

CU9
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2
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7
minute wait time to complete the reaction. For reporting, you must time the two minutes
automatically stored in CU9 Menu). After testing is complete, rinse cell immediately.
NOTE: Copper reacts with biquinoline to form a purple-colored complex according to the concentration of Copper.
*NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
Copper Test Procedure
REMOVE STRIP
Remove one (1) eXact
486632 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
reading.
SELECT TEST: CU9
Press and re-press the MENU button until the
display shows the parameter CU9.
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
cell to capacity with the water sample.
ZERO METER*
Press the ZERO/ON button. When the display
shows 0.00 PPM, the sample is ready for testing.
DIP STRIP AND PRESS "READ"
Dip the eXact
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*. The display will immedi-
ately start counting up from 1 to 20 (this extra time
allows more thorough color development).
READ RESULT DISPLAYED
At 20 sec, the cursor will move across the display
while the meter prepares to measure the sample.
Press READ again. If this reading matches the
previous result, then record this as the Copper value.
If not matching, some water samples may require a 2
®
®
Strip Micro CU, Part No. 486632 into
12
Strip Micro CU, Part No.
CU