Emerson Rosemount CCO 5500, Reference Manual

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Refer to Section A.7 . The analyzer uses this value to produce a final concentration of gas
that can be normalized to standard conditions and averaged over a time ranging from 10
seconds to 30 days.
The instrument computes four averages, any of which can be used to drive the analog
output or displayed on the integral 32-character LCD.
4.1.2 Calibration
During the configuration procedure, the analyzer conducts a calibration that sets the
system gains to produce a zero or known gas level. Once the analyzer has conducted the
routine, precision filters, which do not change, fix the calibration of the instrument .
4.2 Startup and operation
Power up the system and wait for 30 minutes. This allows time for the infrared source to
heat up. Once the receiver is detecting a signal, you will see a reading on the control unit
display. This should be in normal
OPERATING mode, Mode 1 (shown by a number
1
at the
top left corner of the LCD); the display also shows a reading in vpm, mg/m
3
, or Nmg/m
3
. If
this appears, the system is functioning properly.
4.3 Modes of operation
The instrument has six modes of operation identified by a number in the top left corner of
the display.
Mode 1: Operating Mode
Displays average gas concentration.
Mode 2: Parameters
Displays operating parameters.
Mode 3: Normalization
Displays normalization data.
Mode 4: Diagnostics
Investigates instrument operation. The instrument continually checks itself; if a
complicaiton exists, the instrument automatically selects this mode and displays the fault
on the display.
Mode 5: Set up Mode
Sets operating parameters. You must enter the opening parameters for the instrument to
function correctly. You can only access this mode using a security code.
Operation
52 Rosemount CCO 5500