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56 of 66 Specifications - 3654 Portable H2/N2 Analyzer
Operator Manual
ORBISPHERE
7.2 Sensor Specifications
Table 7-2: Sensor Specifications - Table 1
Sensor Type
31 270 H
2
Membranes 29561A 2952A 2935A
Thickness 25 µm 25 µm 25 µm
Membrane material PFA ETFE
ECTFE
(Halar)
Recommended
applications
Waste gas offgas,
reactor coolant
Reactor
coolant
High H
2
level
Radiation limits
10
5
rad 10
8
rad 10
8
rad
Measurement range at
25°C
0-1.5 ppm, or
0-16 cc/kg, or
0-1 bar
0-5 ppm, or
0-60 cc/kg, or
0-3 bar
0-15 ppm, or
0-180 cc/kg, or
0-9 bar
Accuracy (sample temp.
20-50°C within
± 5°C of calibration
temperature)
The greater of
±1% of reading
or ± 4 ppb,
or ± 0.06cc/kg,
or ± 3 mbar
The greater of
±1% of reading
or ± 16 ppb,
or ± 0.2cc/kg,
or ± 12 mbar
The greater of
±1% of reading
or ± 45 ppb,
or ± 0.5 cc/kg,
or ± 30 mbar
Accuracy (sample temp.
0-50°C independent of
calibration temperature)
The greater of
±2% of reading or
± 30 ppb or
± 0.35 cc/kg or
± 12 mbar
The greater of
±2% of reading
or ± 120 ppb
or ± 1.2 cc/kg,
or ± 40 mbar
The greater of
±2% of reading
or ± 300 ppb
or ± 3.0 cc/kg,
or ± 100 mbar
Measurement cycle
(sec.)
20
Sample flow rate
(through flow chamber)
200 ml/min 100 ml/min 50 ml/min