Series 80 pages

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KELLER
PlEZORESISTIVE
Pressure Transducer!
8
ABSOLUTE- AND SEALED GAUGE PRESSURE
The Sries 8 pressure sensors are extremely durable, even when exposed to fast pressure peaks. They have been developed especially for the measurement of high pressures. The Series 8 sensor for ranges 400...1000 bar uses a thicker glass feed through and a wire-bonded measuring cell.
A high-sensitivity piezoresistive silicon chip is used for pressure sensing. The chip is protected against ambient influences by a stainless steel housing sealed with a concentrically corruga-ted diaphragm. The housing is filled with silicone oil for the transfer of the pressure from the diaphragm to the sensing component.
All metal parts in contact with the pressure media are made of stainless steel AISI 316 L. The fully welded housing is vacuum-tight. The connecting pins allow direct PcB mounting or can be used for connecting cables.
Typical applications: Industrial processes, aviation electronics, servo controls,oil industry, robotics... A Rugged Pressure Transducer
The piezoresistive chip immersed in silicone oil is welded into a housing made of stainless steel AISI 316 L.
Series 8 Low Pressure
High Sensitivity
A nominal signal of 200 mV is obtained at a supply current of 1 mA for all standard pressure ranges.
Flexibility
Versions: Absolute and sealed gauge pressure. 9 nominal measurement ranges from 10 to 1000 bar. Different materials and oil fillings (see options verso).
Quality
Each pressure transducer is subjected to comprehensive tests for its pressure response and temperature characteristics, and is delivered with an individual calibration certificate stating the characteristics as well as the results of all tests which were performed. Special testing is available if demanded by the customer.
The Series 8 can also be delivered with a laser welded media isolation diaphragm (see data sheet Series 3 L - 10 L). The new technique for laser welding stainless steel diaphragms further improves the resistancy against crevice corrosion and still retains all the traditional performance, stability and quality for which KELLER is renowned.
Series 8 High Pressure
Series 8 Low Pressure (10. 200 bar)
Series 8 High Pressure (> 200. 1000 bar)
0 15 -0,2
13
0 15 - h6
+OUT (red)
+OUT
(red)
(white)
+IN
(black)
-OUT
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-IN '
(yellow)~ -IN (white)
0 5,08 mm 45°-spacing
-OUT
(blue)
(yellow)
0 7,2 mm 60°-spacing
Subject to alterations
02/07
KELLER AG fur Druckmesstechnik KELLER Ges. fur Druckmesstechnik mbH
St. Gallerstrasse 119 Schwarzwaldstrasse 17
CH-8404 Winterthur D-79798 Jestetten
Tel. +41 (0)52 - 235 25 25 Tel. +49 (0)7745 - 9214 - 0
Fax +41 (0)52 - 235 25 00 Fax +49 (0)7745 - 9214 - 60
Companies approved to ISO 9001:2000
www.keller-druck.com