Hach BioTector B3500C User Manual

Page 86
3. Start Test. This starts the pH test routine, which goes through the 6 phases described above.
4. Take Sample. Not applicable until the test is running.
5. Continue to next phase. Not applicable until the test is running.
6. Stop Test. When the test is running, activating this control will stop the test. Note that some phases have
to be completed before the stop can be used.
P
H
T
E
S
T
0
9
:
1
7
:
2
8
1
2
-
0
9
-
0
2
1
<
R
A
N
G
E
,
V
A
L
V
E
1
,
S
T
R
E
A
M
1
2
M
O
D
E
T
I
C
+
T
O
C
3
S
T
A
R
T
T
E
S
T
4
T
A
K
E
S
A
M
P
L
E
5
C
O
N
T
I
N
U
E
T
O
N
E
X
T
P
H
A
S
E
6
S
T
O
P
T
E
S
T
C
O
N
F
I
R
M
P
R
E
V
I
O
U
S
R
E
A
C
T
I
O
N
F
I
N
I
S
H
E
D
C
O
R
R
E
C
T
L
Y
.
P
R
E
S
S
E
N
T
E
R
T
O
C
O
N
F
I
R
M
,
E
S
C
T
O
E
X
I
T
For the pH test to be accurate, the previous reaction should have finished normally, so that any liquid
carried over from that reaction will not affect the pH test. Therefore, when the start test menu item has
been activated, a confirmation will be required. If the previous reaction did not finish normally, then liquid
remaining in the reactor may interfere with the test and give incorrect pH test results.
pH Test, Phase 2:
P
H
T
E
S
T
0
9
:
1
7
:
2
8
1
2
-
0
9
-
0
2
1
<
R
A
N
G
E
,
V
A
L
V
E
1
,
S
T
R
E
A
M
1
2
M
O
D
E
T
I
C
+
T
O
C
3
S
T
A
R
T
T
E
S
T
4
T
A
K
E
S
A
M
P
L
E
5
C
O
N
T
I
N
U
E
T
O
N
E
X
T
P
H
A
S
E
6
S
T
O
P
T
E
S
T
T
I
M
E
1
5
s
P
H
A
S
E
O
Z
O
N
E
P
U
R
G
E
M
F
C
=
3
9
.
3
l
/
h
C
O
2
=
1
5
0
.
8
p
p
M
W
A
I
T
T
E
S
T
P
H
A
S
E
T
O
C
O
M
P
L
E
T
E
After the pH test has been started, the BioTector carries out a normal startup operation, including ozone
purge, reactor purge, pressure test and flow test to ensure that the system is purged and leak tight. This
phase cannot be stopped, and requires about 210 seconds to run.

Hach BioTector B3500C Specifications

General

Brand	Hach
Model	BioTector B3500C
Category	Measuring Instruments
Language	English