Remove Strip - eXact Eco-Check Instruction Manual

NO3
FRESH WATER ONLY (Salt level must be less than 400ppm)
1
2
3
4
5
6
7
IMPORTANT NOTE: Need to clean the cell after each experiment with brush and distilled water.
This is very IMPORTANT. If any zinc dust is adhering to the cell wall, it will affect the results.
Finally, wash the sample three to four times before the measurement starts.
To determine Nitrate value as Nitrogen (NO
NOTE: The Zinc metal reduces Nitrate to Nitrite and Nitrite reacts with chromotropic acid and sulfanilamide in acid media and forms a pink color, directly proportional to Nitrite concentration.
*NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
Nitrate (as NO

REMOVE STRIP

Remove one (1) eXact
486655 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: NO3
Press and re-press the MENU button until the display
shows the parameter NO3.
RINSE AND FILL CELL WITH SAMPLE
Add sample water to the CELL and use brush to remove any
zinc from previous tests. Rinse the CELL at least 3 times with
the water sample you will be testing - rinsing minimizes the
cell to capacity with the water sample.
ZERO METER*
Press the ZERO/ON button. The cursor will move across the
display followed by 0.00 PPM. 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 meter will automatically
start to count up for 600 seconds (10 minutes).
RECORD RESULT DISPLAYED
After the 600 seconds, the cursor will automatically move
across the display while the meter prepares to measure the
sample. Record result displayed (this result is automatically
stored in NO3 Menu).
with brush.
-
) Test Procedure
3
®
Strip Micro NO
After testing, rinse cell and clean
as N) as used by USEPA, divide displayed result by 4.4.
3
6
®
Strip Micro NO
3
, Part No. 486655 into
3
NO
3
, Part No.