Hach-Lange ORBISPHERE 31xxx Basic User Manual - Manual (Page 3)

Sensor specifications
Specifications are subject to change without notice.
Sensor product line
Gas
Max. Pressure
rating (bar)
Sensor models Comments
O
2
20 31 11x.yz Where :
x=Sensor special characteristics
(0 to 6 depending on application)
y=Membrane O-ring material
(0=EDPM; 1=Viton; 2=Kalrez; 4=Nitril)
z=Head material
(1=Stainless Steel; 2=Peek; 4=Hastelloy; 5=Titanium; 7= Monel)
Suffixes (when used):
A denotes a sensor with fast response to temperature change
E denotes an EEx certified sensor (Ex-Proof)
s denotes a Smart sensor
50 31 12x.yz
100 31 13x.yz
200 31 14x.yz
O
3
20 31 31x.yz
100 31 33x.yz
H
2
50 31 21x.yz
100 31 23x.yz
200 31 24x.yz
• All ORBISPHERE electrochemical sensor enclosures are certified IP68 / NEMA4
• PEEK (Polyetheretherketone) is a highly crystalline thermoplastic
Sensor membrane specifications
Hydrogen sensors
Specification
Membrane
2956A
Membrane
2952A
Membrane
2995A
Membrane
29015A
Recommended applications
Trace
measurement
Low
concentration
Average
concentration
High
concentration
Material PFA Tefzel ® Tedlar ® Saran
Thickness [μm] 25 25 12.5 23
Calibration gas 1% pure H
2
10% pure H
2
100% pure H
2
100% pure H
2
Dissolved measurement range 0 ppb to 75 ppb
0 ppb to
300 ppb 0 ppb to
3200 ppb
0 ppb to
32 ppm
Gaseous measurement range 0 Pa to 5 kPa 0 Pa to 20 kPa 0 Pa to 200 kPa
0 kPa to
2000 kPa
Accuracy
The greater of
±1% of reading or
± 0.03 ppb, or ±
1 Pa
The greater of
±1% of reading
or ± 0.09 ppb,
or ± 6 Pa
The greater of
±1% of reading or
± 1 ppb, or ±
50 Pa
The greater of
±1% of reading
or ± 10 ppb, or
± 1 kPa
Integrated radiation dose limit 2 x 10 4 10 8 10 8 N/A
Expected current in air @ 1 bar 25°C
[μA]
N/A
Expected current in pure gas [μA] 150 50 5 0.5
Temperature compensation range 0 to 50°C 0 to 50°C 10 to 45°C 10 to 45 °C
Temperature measuring range -5 to 100° C
English 3