Inficon ELT3000, Translation Of The Original Operating Instructions

Page: 30 / 74

5 | Installation INFICON
30 / 74 ELT3000-Battery Leak-Detector-Operating-instructions-mina95en1-10-(2007)
Requirements The net chamber volume should be kept as small as possible to allow fast and
accurate detection of leaks. This can be achieved either through test objects that fill up
the majority of the volume or by adding fillers to the chamber.
Observe the following table when constructing an individually manufactured test
chamber.
If you have any questions about constructing or using an individually manufactured
test chamber, please contact INFICON Service.
Table of requirements
Designation Recommendation Comment Required Optional
Housing Aluminum or stainless
steel
AlMg4.5Mn0.7 (AA 5083) X
Pressure 1-5 mbar absolute Reaching the target
pressure is a prerequisite
for the measuring principle.
X
Sealing material FKM or FFKM material Resistant to the most
commonly used chemicals.
EPDM and silicone have a
negative effect on
measuring accuracy.
X
Leaktightness of
test chamber
~10-5 mbar l/s X
Connections 2 connector hoses with 6
mm inside diameter and 8
mm outside diameter
(supply air and exhaust air)
Optional: ½ inch
connection with adapter to
¼ inch; place in the upper
third of chamber so that, in
the event of major leaks,
no liquid electrolyte can
enter the hoses.
X X
Air filter Use of air filters with 40 µm
opening.
Optional: Coarse particle
filter
e.g. Festo VAF PK,
porosity 40 µm
X
Liquid separator e.g. Festo VAF-DB ¼ inch Prevents the Gas Control
Unit from being heavily
contaminated in the event
of major leaks.
X