Hach ORBISPHERE Series Basic User Manual page 5

Table 5 Membrane specifications - Oxygen sensors (1) (continued)
Specification
Integrated radiation dose limit
[rads]
Expected current in air @ 1 bar
25 °C [μA]
Expected current in pure O
O consumption in O saturated
2 2
water at 25 °C [μg/hour]
Temp. compensation range
Temp. measuring range
5
Response time
Recommended min. liquid flow
6
rate [mL/min]
Recommended min. linear flow
6
rate [cm/sec]
Recommended gaseous flow rate
[L/min]
2.3.2 Oxygen sensors (Table 2)
Table 6 Membrane specifications - Oxygen sensors (2)
Specification
Recommended applications
Material
Thickness [μm]
Calibration gas
Dissolved measurement range
Gaseous measurement range
Accuracy
Integrated radiation dose limit [rads]
Expected current in air @ 1 bar
25 °C [μA]
Expected current in pure O
O consumption in O saturated
2 2
water at 25 °C [μg/hour]
Temp. compensation range
5
Response time at 25 °C for a 90% signal change
6
Liquid flow through an ORBISPHERE 32001 flow chamber, with protection cap and no grille
7
Halar is a trademark of Solvay Corporation.
2956A-A
4
2 x 10
26.4
[μA] 132
2
40
7.2 sec.
180
200
2935A-A
Saturated to super
saturated levels
Halar
25
Air / Pure O
0 ppb to 400 ppm
0 Pa to 1000 kPa
The greater of
±1% of reading
or ± 10 ppb,
or ± 20 Pa
N/A
0.9
[μA] 4.7
2
1.4
2958A-A
8
10
9.4
47
14
– 5 to 60 °C
– 5 to 100 °C
9.5 sec.
120
100
0.1 to 3
29521A-A
Saturated to super
saturated levels
®
7
Tefzel
125
Air / Pure O
2
0 ppb to 400 ppm
0 Pa to 1000 kPa
The greater of
±1% of reading
or ± 10 ppb,
or ± 20 Pa
– 5 to 60 °C
29552A-A 2952A-A
N/A
6.3
31.4
9.4
90 sec. 38 sec.
50
30
2995A-A
In line hot wort
(up to 70 °C)
®
Tefzel
12.5
Pure O
2
0 ppb to 2000 ppm
0 Pa to 5000 kPa
The greater of
±1% of reading
or ± 50 ppb,
or ± 100 Pa
8
10 10
0.7 0.2
3.8 0.9
1.3 0.3
8
10
5.4
27
8
50
30
®
2
8
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