11
Technical Specifications
2.4 Sensor membrane specifications
2.4.1 Oxygen sensors (Table 1)
Table 2 Membrane specifications - Oxygen sensors (1)
2956A-A
2958A-A
29552A-A
2952A-A
Recommended applications
Corrosion control,
De-aerated water
Beverage,
Lab. applications
In line wort,
Air/O
2
injection,
Sewage treatment
Corrosion control,
In line beverage,
De-aerated water
Material PFA
Tefzel
®
PTFE
Tefzel
®
Thickness [µm]
25
12.5
50
25
Calibration gas
Air
Air
Air
Air / Pure O
2
Dissolved measurement range
0 ppb to
20 ppm
0 ppb to
40 ppm
0 ppb to
80 ppm
0 ppb to
80 ppm
Gaseous measurement range
0 Pa to
50 kPa
0 Pa to
100 kPa
0 Pa to
200 kPa
0 Pa to
200 kPa
Accuracy
The greater of
±1% of reading
or ± 0.1 ppb
1
,
or ± 1 ppb
2
,
or ± 0.25 Pa
The greater of
±1% of reading
or ± 1 ppb,
or ± 2 Pa
The greater of
±1% of reading
or ± 2 ppb,
or ± 5 Pa
The greater of
±1% of reading
or ± 2 ppb,
or ± 5 Pa
1
Accuracy is ± 0.1 ppb for 410, 510, 362x, 360x and 3655 instruments
2
Accuracy is ± 1 ppb for 366x and 3650 instruments
Integrated radiation dose limit [rads]
2 x 10
4
10
8
N/A
10
8
Expected current in air
@ 1 bar 25°C [µA]
26.4
9.4
6.3
5.4
Expected current in pure O
2
[µA]
132
47
31.4
27
O
2
consumption in O
2
saturated
water at 25°C [µg/hour]
40
14
9.4
8
Temp. compensation range
– 5 to 60° C
Temp. measuring range
– 5 to 100° C
Response time
1
7.2 sec.
9.5 sec.
90 sec.
38 sec.
Recommended min. liquid flow rate
2
[mL/min]
180
120
50
50
Recommended min. linear flow rate
2
[cm/sec]
200
100
30
30
Recommended gaseous flow rate
[L/min]
0.1 to 3
