56 of 66 Specifications - 3654 Portable H2/N2 Analyzer
Operator Manual
ORBISPHERE
Table 7-2: Sensor Specifications - Table 1
Sensor Type 31 270 H2
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 H2 level
Radiation limits 105 rad 108 rad 108 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