11
RANGES
Fresh Water
Test Factor
Range
Display Abbreviation
Alkalinity
0-250 ppm
ALK
Ammonia
0-4.0 ppm
AMMO
Hardness
0-500 ppm
G HARD
Nitrate
0-300 ppm
NITRATE
Nitrite
0-2.0 ppm
NITRITE
pH
4.5-10.0
pH
Phosphate
0.0 - 2.0 ppm
PHOS
Salt Water
Test Factor
Range
Display Abbreviation
Alkalinity
0-300 ppm
ALK
Ammonia
0-4.0 ppm
AMMO
Calcium
200-800 ppm
Ca
Magnesium
500-2200 ppm
Mg
Nitrate
0-60 ppm
NITRATE
Nitrite
0-2.0 ppm
NITRITE
pH
6.5-10.0
pH
Phosphate
0.0 - 2.0 ppm
PHOS
Test results that are out of range of the reagent system wil be
RED
.
RED
test results may
not be accurate. Go SETTINGS>Other Settings to turn the Ranges Enabled feature OFF.
Testing samples for Nitrate immediately after treatment with a chlorine neutralizer
containing sodium thiosulfate will give low results. Retest in 2-3 days.
If the concentration for one test factor is signifi cantly out of the range for the reagent
system, the accuracy of the results for the other test factors may be aff ected.
To convert Nitrate (NO
3
) to Nitrate-Nitrogen (NO
3
-N) multiply by 0.226
To convert Nitrite (NO
2
) to Nitrite-Nitrogen (NO
2
-N) multiply by 0.304
To convert Ammonia (NH
3
) to Ammonia-Nitrogen (NH
3
-N) multiply by 0.823
GENERAL OPERA
TING PROCEDURES
