Zero Meter - eXact Eco-Check Instruction Manual

NO2
1
2
3
4
5
6
7
To determine Nitrite value as Nitrogen (NO
NOTE: 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.
Nitrite (as NO
REMOVE STRIP
Remove one (1) eXact
486623 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: NO2
Press and re-press the MENU button until the
display shows the parameter NO2.
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. 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
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*. The meter will automatically start to
count up for 360 seconds (6 minutes).
RECORD RESULT DISPLAYED
After the 360 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 NO2 Menu).
-
) Test Procedure
2
®
Strip Micro NO
-
as N) as used by USEPA, multiply the result by 0.3045.
2
5
® Strip Micro NO
, Part No. 486623
2
NO
2
, Part No.
2