Dear Sriwattana K.,
In August of 2009 we supplied the Rosemoount 068N11N00N035E5B6 temperature sensors. They were not holding up so we started supplying a sensor from United Electric. This sensor has an Inconel Sheath rather than 316SS and has a higher temperature rating and more robust construction. Plus it is much less expensive. We supplied:
(2) United Electric S09-635B (p/n later changed to SPL#407247) Nov 2009
(6) United Electric S09-635B (p/n later changed to SPL#407247) Jan 2010
(10) United Electric S09-635B (p/n later changed to SPL#407247) Oct 2010
(10) United Electric SPL#407247 Dec 2011
(10) United Electric SPL#407247 Jul 2013
Attached invoice ICQ102416DJG-3/321240 includes the United Electric sensor rather than Rosemount.
Best Regards,
Jim Gunn