Sensor membrane specifications
In-line instrument applications (Table 1)
Sensor type
31290 H
2
(purge gas N
2
)
For other purge gases, please contact your Hach representative for
specification.
Specification
Membrane 29561A
Membrane 2952A
Membrane 2935A
Thickness [μm]
25
25
25
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
0-2 ppm, or 0-25 cc/kg, or
0-1.5 bar
0-10 ppm, or 0-120 cc/kg,
or 0-6 bar
0-20 ppm, or 0-220 cc/kg,
or 0-12 bar
Accuracy (sample
temperature 20-50°C
within ± 5°C of calibration
temperature)
The greater of ±1% of
reading or ± 2 ppb, or ±
0.03cc/kg, or ± 1.5 mbar
The greater of ±1% of
reading or ± 8 ppb, or ±
0.1cc/kg, or ± 6 mbar
The greater of ±1% of
reading or ± 25 ppb, or ±
0.4 cc/kg, or ± 20 mbar
Accuracy (sample
temperature 0-50°C
independent of calibration
temperature)
The greater of ±3% of
reading or ± 15 ppb or ±
0.18 cc/kg or ± 6 mbar
The greater of ±3% of
reading or ± 60 ppb or ±
0.6 cc/kg, or ± 20 mbar
The greater of ±3% of
reading or ± 150 ppb or ±
2.5 cc/kg, or ± 50 mbar
Measurement cycle
(seconds)
17
Sample flow rate
1
(through flow chamber)
500 mL/min
200 mL/min
100 mL/min
Linear flow rate
2
(past
sensor socket)
N/A
N/A
N/A
In-line instrument applications (Table 2)
Sensor type
31490 CO
2
(purge
gas N
2
)
31590 N
2
(purge gas
CO
2
)
31285TC H
2
/D
2
and He (clean air
purge)
Specification
Membrane 29561A
Membrane 29561A
Membrane 2952A
Membrane
29561A
Thickness [μm]
25
25
25
25
Material
PFA
PFA
ETFE
PFA
Recommended
applications
In-line beverage
In-line beverage
Reactor coolant
Waste gas PWR
Radiation limits
10
5
rad
10
5
rad
10
8
rad
10
5
rad
Measurement range at
25°C
0-7 V/V, or 0-15 g/kg,
or 0-10 bar
0-350 ppm, or
0-300 mL/L, or
0-20 bar
0-100% H
2
/D
2
or
0-10 bar
0-100% H
2
/D
2
or
0-4 bar
1
Minimal flow through an ORBISPHERE 32001 flow chamber
2
Minimal flow past an ORBISPHERE 29501 sensor socket
4
English
Содержание ORBISPHERE 31x9 Series
Страница 149: ......