23
solution to flow into and out of the sensor well and cell cup for at
least 10 seconds.
4.
Let sample flow continuously into conductivity cell with no
aeration.
5.
Allow both the sensor well and cell cup to remain filled with
sample.
6.
Press
. The instrument will begin alternating between a
predicted final ORP value and a free chlorine equivalent
concentration in ppm. Both readings will change rapidly at first.
7.
Wait for the readings to stabilize. When the mV and ppm values
are unchanging for 5 consecutive readings, the FC
E
reading
has reached a stable level. This may take 1 to 2 minutes.
nOTE:
If the reading takes more than 1 minute to stabilize,
press the
after 1 minute to prevent Auto oFF feature
from disturbing the measurement process. Annunciators will
alert you when either the pH or ORP of the final FC
E
ppm value
are Out of Range (“
-Or-
”).
8.
Press
MS
to store reading in memory if desired.
3. FC
E
Immersion Method
nOTE:
Use this method for pools, spas and other large standing bodies
of water.
1.
Hold instrument beneath the surface of the water to avoid
surface effects on the water’s chemistry.
2.
Swirl the instrument around for at least 10 seconds to thoroughly
rinse the cell cup and sensor well.
3.
Continue holding the instrument under the surface while taking
the reading.
4.
Press
.
5.
The instrument will begin alternating between a predicted final
ORP value and a free chlorine equivalent concentration in ppm.
Both readings will change rapidly at first.
6.
Wait for the readings to stabilize. When the mV and ppm values
are unchanging for 5 consecutive readings, the FC
E
reading
has reached a stable level. This may take 1 to 2 minutes.
