Data Sheet
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1
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A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
1
5
10
15
20
25
30
1
5
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A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
Correct
1
5
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20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
1
5
10
15
20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
Incorrect
Power and data isolation
The Atlas Scientic EZO
™
Dissolved Oxygen circuit is a very sensitive device. This sensitivity
is what gives the Dissolved Oxygen circuit its accuracy. This also means that the Dissolved
Oxygen circuit is capable of reading micro-voltages that are bleeding into the water from
unnatural sources such as pumps, solenoid valves or other probes/sensors.
When electrical noise is interfering with the Dissolved Oxygen readings it is common to
see rapidly uctuating readings or readings that are consistently off. To verify that
electrical noise is causing inaccurate readings, place the Dissolved Oxygen probe
in a cup of water by itself. The readings should stabilize quickly, conrming that electrical
noise was the issue.
When reading Dissolved Oxygen and Conductivity together, it is strongly
recommended that the EZO
™
Dissolved Oxygen circuit is electrically isolated
from the EZO
™
Conductivity circuit.
Without isolation, Conductivity readings
will effect Dissolved Oxygen accuracy.
1
5
10
15
20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
1
5
10
15
20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
Correct
1
5
10
15
20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
1
5
10
15
20
25
30
1
5
10
15
20
25
30
A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
Incorrect
Basic EZO
TM
Inline Voltage Isolator
r 0.1
9 Copyright © Atlas Scientic LLC