Super Systems MGA6000 - Manual (Page 22)

SSi Manual #4563 Rev. D Page 22 Multi-Gas Model 6000
Calculation Factors - Menu Page 23
The calculation factors screen
allows for the entry of
calculation factors when dealing
with the calculation of % carbon.
The IR shim factor is factory set
to 150 and the CH4 Factor is
factory set to 65. These values
should only be changed after
determining that additional
adjustments are required based
on the specific conditions and
equipment at your facility.
Please contact Super Systems at
800-666-4330 for help with
adjusting these pre-set values.
Example – the following will show how to set the IR Shim factor to 170 and the CH4 factor to 50. When the
screen first displays, the IR Shim factor field is already highlighted. Enter a 170 and press Enter. Press the
down arrow key once to highlight the CH4 factor field. Enter a 50 and press Enter.
IR Cell Span Calibration – Menu Page 24
The IR Cell Span Calibration page is
used to span calibrate the IR cells. It
is very important to be sure that a
Certified Primary Standard sample
gas within the noted specifications is
used. The nominal composition of
this gas should be:
20% CO (Carbon Monoxide)
1% CO2 (Carbon Dioxide)
6% CH4 (Methane or Natural Gas)
40% H2 (Hydrogen)
Balance N2 (Nitrogen)
When viewing this screen, the
current measured values are shown
at the left under the heading Actual , while the desired values will be in the center column, Span Gas . The
final column is Status , and this shows the percentage difference between the actual and desired values,
followed by a comment. This comment can either be OK, ?OK, or BAD, depending on how far apart the
values are. If the difference is between 0 and 10% of the span value, then it will be OK and the calibration
will proceed without interruption. If the difference is between 10% and 20%, it will be ?OK, and a warning
message will be displayed. If the value is more than 20% out, it will be BAD and the calibration will not be
allowed to proceed. If this occurs, check to make sure that you are using the correct gas and that there is
adequate flow. If it is still not operating properly contact SSi for additional support.
To proceed with the calibration of one or more sensors, use the up and down arrows to enter the specific
values of each gas. These values will be listed on the calibration cylinder. It is possible to calibrate one, two,
or all three sensors. The default setting is to calibrate all three, however, to keep from calibrating one of the
sensors, use the up and down arrows to highlight the sensor that will not be calibrated, and press Enter.
This will change the YES to NO, and that sensor will not be calibrated.