Hach-Lange ORBISPHERE 31xxx Installation and Maintenance - Manual (Page 11)

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Section 2 Technical Specifications
Specifications are subject to change without notice.
2.1 Sensor design
• All ORBISPHERE electrochemical sensors’ enclosures are certified IP68 / NEMA4
• PEEK (Polyetheretherketone) is a highly crystalline thermoplastic
2.2 Sensor weight and dimensions
Sensor weight is from 140 to 700 grams, depending on the construction material.
Table 1 Sensor design
Gas
Max. Press
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 temp. 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
Figure 1 Sensor dimensions