CO2 Analyzers 3100 & 3150
Instruction 19-9339
31
3) Connect the sample tube, if relevent (always use the sample
fi
lter)
from the sample point to the inlet port of the instrument, ensuring
that the
fi
lter is seated correctly.
4) Press the “PUMP” key to draw a sample into the instrument. Notice
the main gas readings start to change. It is recommended to run
the pump until the gas readings have stabilized (approximately 30
seconds) then press the soft-key “STORE” if desired.
5) The pump will stop and the operator will be prompted to enter an
ID code to identify the reading. Press the “ENTER” button. A
“READING STORED” con
fi
rmation message will be displayed
brie
fl
y before returning to the “MAIN READ SCREEN.”
NOTE:
The ID code prompt can be switched on or off. This option
is accessed via the “SETTINGS” menu, then press “KEY 1
- PROMPT FOR ID: YES OR NO.” If the ID prompt is set to
“NO” the reading is stored using the default logging ID.
6) After each reading the instrument should be purged with fresh air.
7) Disconnect the sample tube from the instrument. Turn the pump
ON. Then run the pump for a minimum of 30 seconds. The gas
readings should return to nominal values for fresh air.
Regardless of the instrument con
fi
guration, the following data will be
stored for each reading:
• ID code (8characters)
• Reading Type (0=User, 1=Auto, 2=Peak, 3=Hold)
• Current time / date
• Gas readings (CO
2
, O
2
)
• Sample Pressure (for indication only)
• Temperature (Optional)
• Humidity (Optional)
