3 Questions
What is the purpose of disabling the auto blowback master switch HS400129 on Group 639?
To initiate manual blowback of an instrument
How many instruments can the operator blow back at a time?
Only one instrument at a time
What happens to the handswitch after the manual blowback is initiated?
It returns to the mode it was in before the blowback
Study Notes
Master Switch HS400129
- Disabling the auto blowback master switch HS400129 on Group 639 serves a specific purpose.
Manual Blowback
- The operator can blow back only one instrument at a time.
- After initiating manual blowback, the handswitch gets latched.
Test your knowledge on reactor instrument blowback and the DCS automated blowback procedure with this quiz. Learn about key points such as displaying the reactor auto blowback graphic on a DCS screen and monitoring the progress of automatic blowback.
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