Hach ORBISPHERE 31x9 Series Basic User Manual page 4

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