Test Products International 712 - Manual (Page 14)

COMBUSTION ANALYSIS (Continued)
5.3 Combustion Displays (continued)
• Combustion Display 4
• Displays CO air free (-CF-)
• Combustion Display 5
• Displays Temperature reading of Channel 1 (T1)
• Displays Temperature reading of Channel 2 (T2)
• Displays the Differential Temperature (Diff.) between ch1 and
ch2
• 'oPEn' will be displayed if no 'K' type probe is connected to the
thermocouple socket
• Press the Up Arrow Key to switch between ºC and ºF
5.. During a combustion test you can save, print, and send data to a computer.
See section 7 through 11. Allow readings to stabilize before saving or printing the
data.
6. After the test is complete, remove the flue probe from the test location and
allow the analyzer to purge in a fresh air environment. Turn the analyzer off as
outlined in section 4.2.
COMBUSTION ANALYSIS (Continued)
4. As seen below, use the Scroll/Enter Key to move through the various com-
bustion displays.
5.3 Combustion Displays
You can move through the following Combustion Analysis Screens by repeat-
edly pressing Scroll/Enter:
• Combustion Display 1 (Default Start Up Display)
• Displays Carbon Monoxide (CO) reading in parts per million
(ppm)
• Displays calculated Carbon Dioxide (CO2) figure in percentage
(%)
• Displays calculated CO/CO2 (Ratio) figure
WARNING: - Should the CO reading rise above 2,000ppm a continuous series of
Alarm Beeps will be heard. The Probe should immediately be disconnected from
the instrument and the instrument returned to a clean air environment. This Alarm
alerts the user that there is a high concentration of CO, and this procedure will
protect the sensors within the instrument.
• Combustion Display 2
• Displays Oxygen (O2) reading in percentage (%)
• Displays calculated Excess Air (X Air) figure in percentage
• Displays calculated Efficiency (Eff.) figure in percentage
• Pressing the Up Arrow Key will toggle between Gross &
Net Efficiency (Note: Gross Efficiency is used in the USA)
• Combustion Display 3
• Displays Carbon Monoxide (CO) reading in parts per million
(ppm)
• Displays Oxygen (O2) reading in percentage (%)
NOTE: When selecting oil as fuel be sure to use the optional
oil filter (A773) or readings could become erratic.