Yes, years ago. Our supplier used a type of lubricant that broke down with
age. We special ordered the encoder without lubricant there after. They
worked fine without for many years. Some, I am sure, are still in use.

Guy Ramsey
Senior Lab Technician / Instructor


E-Mail: [log in to unmask] <mailto:[log in to unmask]>
Ph: (610) 362-1200 x107
Fax: (610) 362-1290



-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Valdez, Raul (R.)
Sent: Friday, August 03, 2001 1:30 PM
To: [log in to unmask]
Subject: [TN] Encoder with contamination.Soldering or Supplier process.


Hello,
We are using rotary switch encoders on our application and they are failing,
after some were opened, certain kind of yellow grease was found, we are not
sure if that's flux since the encoder is being soldered to the board thru
wave soldering.

After cleaning the "defective" encoder with alcohol the encoder works fine.


Anyone has had a similar experience?? soldering process or encoder supplier
fault??

Please help.

Thanks.


Raúl Valdéz.

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