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Instruction Manual
IM-106-5500, Original Issue
August 2005
CCO 5500
4-20
NOTE
If this option is selected, all data in the averaging stacks is reset and the data
for as much as the last 30 days will be lost.
Calibrate From this option the two detector levels may be
displayed and a basic calibration conducted.
While in this mode the gas cell is not moved;
this gives an immediate response for setting up
the detector levels. The basic calibration of the instrument is set by a 'CAL
FACTOR' that is calculated during a calibration routine. Press the ENTER key
while this is displayed and the following options are available:
Set Detectors
Both the D1 and D2 levels can be displayed;
saturation counts are also displayed. To give an
immediate response to any alterations that are
required, the filters and gas cells are not moved
during this operation.
Refer to Section 3, Configuration and Startup and, Section 4, Diagnostic
Mode for a discussion of these levels - detector level and saturation count.
Span Adjust
NOTE
The SPAN FACTOR is initially set at the factory; do not adjust it unless the
instrument sensitivity is suspected. In any case it is recommended that before
adjustments are made the original value is recorded.
Instrument sensitivity can be adjusted if a
known concentration of measurement gas
exists between the transmitter and receiver
units, and instrument sensitivity is suspected. If
a problem arises with this consult Rosemount Analytical.
The SPAN FACTOR may need adjusting if new gas cells or filters have been
fitted. Refer to Span Adjust.
CHECK CELL MODE This mode is for use with a Rosemount Analytical check cell. It verifies the
calibration and operation of the analyzer. For details of its use refer to “Notes
for Using a Rosemount Analytical Check Cell” on page 4-21.
Press enter on viewing this display if the check
cell mode is required. Use the arrow keys to
toggle the display to YES and press enter
again.
The check cell mode is now selected. Note that
the display will default back to Mode 1 if YES is
not selected within 5 seconds.
5 CALIBRATE
5 D2 = 10534 # = 00000
D1 = 15000 # = 00000
5 Val = 250 –> 250ppm
Span Factor 1000
6 Ch’k Cell Mode
6 Ch’k Cell Mode
YES