COMBUSTION ANALYSIS (Continued)
4. As seen below, use the Scroll/Enter Key to move through the various com-
bustion displays.
5.2 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 (%)
Appendix A : SPECIFICATIONS
Instrument
Operating Temperature Range
14°F to +122°F (-10°C to +50°C)
Battery
1.5V AA size (3)
Battery Life
> 6 Hours
Fuels
Natural Gas, LPG, Light Oil, Heavy Oil
OPT 1 (Bituminous Coal), OPT 2
(Anthracite Coal), OPT 3 (Coke), OPT 4
(Butane), OPT 5 (Wood), OPT 6
(Bagasse)
Display
Backlit LCD
Data Storage
50 sets of readings
Time & Date
24 Hour Real Time Clock
Dimensions
200mm x 90mm x 60mm
Weight
500g
Casing
Rubber Boot as Standard
Switch Off
Failsafe
Exhaust
Safety Spigot
Conforms to
BS7927 (and the draft BS7967)
Flue Temperature Probe
Construction
Pistol Grip with Stainless Steel Shaft
Hose Length
2500mm
Insertion Length
200mm
'K' Type Thermocouple Accuracy
+/- 0.3%, +/- 1°C
Maximum Temperature
800°C
Gases
Range
Resolution
Accuracy
Oxygen
0-25%
0.1%
+/- 0.3%
Carbon Monoxide
0-10,000 ppm
1 ppm
+/- 5 ppm or 5%
Whichever is greater
Carbon Dioxide
0-25%
0.1%
Calculated
CO/CO2 Ratio
0-0.999
0.001
Calculated
Combustion Efficiency
0-100%
0.1%
Calculated
