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201/203/205/207 Series Flowmeters and Controllers Instruction Manual
EAR99 Technology Subject to Restrictions Contained on the Cover Page
Page 2 of 28
Manual Print History
The print history shown below lists the printing dates of all revisions created for this manual. The revision level
letter increases alphabetically as the manual undergoes subsequent updates. Each new revision includes a
revised copy of this print history page.
Revision B (Document Number 141-1199) ................................................................................................................................ November 1999
Revision C (Document Number 141-102002) .............................................................................................................................. October 2002
Revision D (Document Number 141-082005) .............................................................................................................................. August 2005
Revision E (Document Number 141-062008) .................................................................................................................................... June 2008
Revision F (Document Number 141-092008) ........................................................................................................................ September 2008
Revision G (Document Number 141-022009)........................................................................................................................... February 2009
Revision H (Document Number 141-102009) .............................................................................................................................. October 2009
Revision J (Document Number 141-102009A) ............................................................................................................................. October 2009
Revision K (Document Number 141-082010) ................................................................................................................................. August 2010
Revision L (Document Number 141-072011) ........................................................................................................................................... July 2011
Revision M (Document Number 141-032021) ................................................................................................................................. March 2021
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Description of Symbols and Messages used in this manual
WARNING:
indicates a hazardous situation, which, if not avoided, could result in death or
serious injury. Do not proceed beyond a WARNING notice until the indicated conditions are
fully understood.
CAUTION:
indicates a hazardous situation, which if not avoided, could result in minor or
moderate injury. Do not proceed beyond a CAUTION notice until the indicated conditions are
fully understood and met.
NOTICE:
calls attention to a procedure or practice that if not correctly performed or adhered
to, could result in equipment damage, loss of data, or inaccurate data.
NOTE:
is used for tips and other digressions.
Hastings Instruments reserves the right to change or modify the design of its equipment without any
obligation to provide notification of change or intent to change.