11/21/2014 1 FUNDAMENT ALS OF INSTRUMENTATION AND CONTROL PHILOSOPHY PROCESS CHARACTERISTICS
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5/19/2018 | 502: Bad gateway
1/1
Error 502 Ray ID: 41d19a42a2409f78 2018-05-18 22:01:28
UTC
Bad gateway
You
Browser
Working
Ashburn
Cloudflare
Working
Host
Error
What happened?
The web server reported a bad gateway error.
What can I do?
Please try again in a few minutes.
Cloudflare Ray ID: 41d19a42a2409f78 Your IP: 2607:5300:203:be2:: Performance & security by Cloudflare
https://www.cloudflare.com/5xx-error-landing?utm_source=error_footer
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