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Instruction Manual
IM-106-5500, Original Issue
August 2005
4-5
CCO 5500
OPERATING MODE From this mode of operation the averaging time of the displayed gas
concentration may be altered to one of the other averaging stacks, and the
measured/normalized gas measurements observed. When in this mode, the
display will appear similar to that shown below. If the display is not similar to
this, press the MODE key until number 1 appears in the top left corner of the
display.
To change the data displayed press the ENTER
key and a flashing cursor will appear at the
beginning of the concentration units, i.e. vpm or
mg/Nm
3
. The ARROW keys will now change
the highlighted parameter. Each push of the ENTER key will select another of
the parameters, in the following order:
• Concentration Units - vpm, mg/m
3
(or mg/Nm
3
).
• Measured or Normalized display.
• Averaging Time - seconds, minutes, hours or days.
Press the ENTER key when the cursor is flashing on the averaging time and
the cursor will disappear from the display. The ENTER key may be pressed
again if required to bring the cursor back onto the display.
PARAMETER MODE In this mode, the parameters set within the set-up mode may be examined,
but not changed. Press the MODE key until the number 2 appears in the top
left corner of the display, then press the ENTER key.
The ARROW keys will now scroll through the available options; press the
ENTER key to display the selected option.
Press the ENTER key again to exit from each option.
Refer to Setup Mode, for further details of the display information and how to
change the held parameters.
Identification The analyzer type, identity number, and EPROM program ID are displayed
from this option. Use the arrow keys to scroll between these options.
Parameters The following parameters are examined from this option, selected using the
ARROW keys:
1. Measurement Path Length - The path length currently used to calculate
the gas concentration.
2. Span Factor - From the SET UP MODE - CALIBRATE option, the
sensitivity of the instrument can be adjusted. The Span Factor was
initially set at the factory using known gas concentrations.
3. Output Fault - Should a fault condition occur, the analog output can be
set from one of four options.
Averages Selecting this option will display the times set for each of the four averaging
stacks.
Output The base, span and averaging of the analog output are displayed from this
option.
1 CO 0015mg/Nm3
Normalized Av03h