[ List Subjects ][ Post Message ]
Subject: corroded thermocouples - how to clean?
[ View Followups ][ Post Followup ]
Date: 08/29/00 at 3:53 AM
Posted by: Ivo
I use humidity sensors which have type E (chromel/constantan) thermocouples. Wires are extremely thin.
After repeated measurements, the TC junction becomes contaminated/corroded which considerably decreases
accuracy of the measurement. I tried cleaning the metal surface with different substances (5% ammonia solution,
acetone/ethanoleum mixture, chloroforme) and ultrasonification but neither method works
Do you know of more efficient ways to restore thermocouples? Any advice would be great.
Post a Follow-up: