EC9830 CO ANALYZER OPERATION MANUAL 
1-4  98307600 Rev. C-1 
1.1.16 Digital Output 
  Multidrop RS232 port shared between analyzers for data, status, and control. 
  Service RS232 port gives front panel access to a local or remote user. 
  USB port connection on the rear panel provides data transfer and control. 
  DB50 with discrete status, user control and analog output. 
1.2 U.S. EPA Reference Method 
The EC9830 carbon monoxide analyzer is designated under U.S. EPA regulations 
as  reference  method  RFCA-0992-088.  Use  of  the  EC9830  under  U.S.  EPA 
designation  as  a  reference  method,  as  defined  in  40 CFR  Part 53,  requires 
operation under the following conditions: 
  Range: Any full scale range from 0-5.0 ppm to 0-100 ppm. 
  Ambient temperature: 15° to 35° C. 
  Line voltage: 105 to 125 VAC, 60 Hz, or 200 to 240 VAC, 50 Hz. 
  Flow rate: 1 slpm. 
  Pump: Internal Pump (A Series), Ecotech external pump or equivalent (B 
Series) (see section 2.1.2.3). 
  Filter: A 5 micron PTFE filter must be installed in front of the sample inlet 
(Zero and Span gas must pass through this filter). 
  If  the  units  in  the  MEASUREMENT  MENU  are  changed  from  volumetric  to 
gravimetric (or gravimetric to volumetric), the analyzer must be re calibrated.  
  The  analyzer  must  be  operated  and  maintained  in  accordance  with  this 
operation manual. 
  The following menu selections must be used: 
INTERFACE MENU 
ANALOG OUTPUT MENU 
RANGE: 5 PPM to 100 PPM 
OVER-RANGING: ENABLED or DISABLED 
 
INSTRUMENT MENU 
MEASUREMENT MENU 
FILTER TYPE: KALMAN 
 
CALIBRATION MENU 
CALIBRATION: MANUAL or TIMED 
SPAN COMP: DISABLED 
BACKGROUND: not DISABLED