3
I
DOscan10
Table 1. Altitude and Barometric Pressure
Altitude (m)
kPa
mmHg
0
101.3
760
100
100.1
750
200
98.8
741
300
97.6
732
400
96.4
723
500
95.2
714
600
94.0
705
700
92.8
696
800
91.7
688
900
90.5
679
1000
89.4
671
1100
88.3
662
1200
87.2
654
1300
86.1
646
1400
85.0
638
1500
84.0
630
1600
82.9
622
1700
81.9
614
1800
80.9
607
1900
79.9
599
2000
78.9
592
2100
77.9
584
2200
76.9
577
2300
76.0
570
2400
75.0
563
2500
74.1
556
2600
73.2
549
2700
72.3
542
2800
71.4
536
2900
70.5
529
3000
69.6
522
3100
68.7
515
3200
67.9
509
3300
67.0
502
3400
66.2
496
3500
65.4
490
3600
64.6
484
Dissolved Oxygen Calibration
The DOscan10 tester allows 1 or 2 points dissolved oxygen calibration.
If you have selected the single point calibration in the setup menu,
we recommend that you perform a 100% saturation calibration in the
.
air-saturated water. If the 2 points calibration is selected, the zero
.
oxygen solution needs to be used.
During the calibration and measurement, the temperature sensor on
electrode must be immersed in the sample solution completely, the
solution should keep 0.3 m/s of minimum flow rate to avoid oxygen
starvation at the membrane.
Single Point Calibration - 100% Saturation
Ensure that you have selected 1 point calibration in the setup menu.
1.1 Press the
Cal
key, the display shows 100%/
CAL1.
1.2 Hold the dissolved oxygen electrode in the air at 100% relative
humidity or place the electrode into the air-saturated water for
about 10 minutes. Press the
Enter
key to begin the calibration.
1.3 When the reading has stabilized, the tester will show
and
return to the measurement mode.
Temperature sensor