Hach ORBISPHERE 31 Série Manuel D'utilisation Simplifié page 3

Table of Contents
1 Sensor specifications
2 Online user manual
3 General information
4 What you have received
Section 1 Sensor specifications
Specifications are subject to change without notice.
1.1 Sensor product line
Max.
Gas Pressure
rating (bar)
20
50
O
2
100
200
20
O
3
100
50
100
H
2
200
• All ORBISPHERE electrochemical sensor enclosures are certified IP68 / NEMA4
• PEEK (Polyetheretherketone) is a highly crystalline thermoplastic
1.2 Sensor membrane specifications
1.2.1 Hydrogen sensors
Specification
Recommended applications
Material
Thickness [μm]
Calibration gas
Dissolved measurement range
on page 3
on page 7
on page 7
on page 8
Sensor
Comments
models
31 11x.yz Where :
x=Sensor special characteristics
31 12x.yz
(0 or 1; depending on application)
31 13x.yz
y=Membrane O-ring material
31 14x.yz
(0=EDPM; 1=Viton; 2=Kalrez; 4=Nitril)
z=Head material
31 31x.yz
(1=Stainless Steel; 2=Peek; 4=Hastelloy; 5=Titanium; 7=
31 33x.yz
Monel)
31 21x.yz
Suffixes (when used):
A denotes a sensor with fast response to temperature
31 23x.yz
change
E denotes an EEx certified sensor (Ex-Proof)
31 24x.yz
s denotes a Smart sensor
Membrane
2956A
Trace
measurement
PFA
25
1% pure H
0 ppb to
75 ppb
5 Installation on page 9
6 Maintenance on page 11
7 Troubleshooting
Membrane
2952A
Low
concentration
®
Tefzel
25
10% pure H
2 2
0 ppb to
300 ppb
on page 18
Membrane Membrane
2995A 29015A
Average
concentration concentration
®
Tedlar Saran
12.5
100% pure
100% pure H
2
0 ppb to 0 ppb to
3200 ppb 32 ppm
English 3
High
23
H
2