Manual
User’s
Manual
IM 11M6D2-02E-A
3rd Edition
Model AC4/AC8 Automatic Calibration Unit
For Use With AV550G
Oxygen Analyzer Averaging Converter
I.  Introduction.................................................................................................3
II.  Overview......................................................................................................3
  2.1   Models AC4/AC8 Multi-Channel Automatic Calibration ..............................................................3
III.  Installation ...................................................................................................3
   3.1 Location ..........................................................................................................................................3
   3.2 Mounting ........................................................................................................................................3
   3.3 Gas Sources ...................................................................................................................................4
   3.4 Piping..............................................................................................................................................5
IV.  Wiring ..........................................................................................................6
   4.1 Wiring the AC4/AC8 to the AV550G Averaging Unit ......................................................................6
   4.2 Pressure Switch, M1133AR, Set Point Procedure .........................................................................6
V.  Initial Flow Rate Set-Up .............................................................................7
   5.1 Checking for Leaks ........................................................................................................................7
   5.2 Setting for Reference Air Flow .......................................................................................................7
   5.3 Balancing Pressure Drops in the Cal Lines ....................................................................................8
   5.4 Calibration Check ...........................................................................................................................9
VI.  Programming ..............................................................................................9
VII.  Set-Up Menus for Calibration from the AV550G Averaging Unit ...........9
  7.1 Modes .............................................................................................................................................9
  7.1.2 Calibration Setup Mode ............................................................................................................10
  7.1.3 Zero Gas Concentration ............................................................................................................10
  7.1.4 Span Gas Concentration ...........................................................................................................10
VIII. Maintenance .............................................................................................12
IX.  Trouble shooting .......................................................................................12
   9.1 Typical Calibration Problems ........................................................................................................12
X.  Spare Parts and Accessories ..................................................................13
    10.1 Spare Parts .................................................................................................................................13
    10.2 Accessories ...............................................................................................................................14
     10.2.1 Zero Gas Regulator, M1132ZX ........................................................................................15
     10.2.2 Pressure Regulator, M1132KD ........................................................................................15
    10.2.3 Pressure Gauge, M1132CG .............................................................................................15
     10.2.4 Zero Gas Pressure Switch, M1133AR .............................................................................16
     10.2.5 Fuses, M1132HG .............................................................................................................16
Appendix A Wiring Diagram AC4 to AV550 to ZR22G ..................................17
Appendix B Wiring Diagram AC8 to AV550 to ZR22G ..................................19










