Kaman Extreme Environment Sensors - Manual (Page 19)

High Temperature Displacement System
Construction and Corrosion Resistance
The exterior of the sensor is fabricated of Inconel Alloy 625*, an alloy that is
particularly useful in contact with high temperature steam. Since no dissimilar
material joints are exposed to steam, corrosion by galvanic action should be minimal.
Cable sheaths are of Inconel Alloy 600.
All internal materials and components are sealed from the test environment.
Standard assembly procedures include leak testing at numerous steps during
construction to assure proper integrity of the sensor in a steam environment.
Coils, cable terminations, and other internal parts are similar to Kaman's standard
transducers and consist of materials appropriate for high temperature use.
* Engineering data on Inconel Alloy 625 can be found in the following pertinent
publications:
1. "Huntington Alloys - Resistance to Corrosion"
2. "Inconel Alloy 625"
Both are published by: Huntington Alloy Products division
The International Nickel Company, Inc.
Huntington, West Virginia 25720
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