D. Measuring CO in Flue Gas
1. Complete steps A and B above.
2. Attach the hose from the flue probe to the Mini Pump
Protection Filter.
3. Place the shaft of the flue probe into the flue.
4. 706 will measure the CO. Empty water/air filter as needed.
E. Measuring CO in exhaust
1. Complete steps A and B above.
2. Attach the hose from the flue probe to the Mini Pump
Protection Filter. Connect the exhaust probe extension (flexible
metal tube) to the end of the flue probe.
3. Place the extension into the exhaust stream.
4. 706 will measure the CO. Empty water/air filter as needed.
NOTE: The instrument has an auto shut off after 10 minutes should no
keys have been pressed for this period and as mentioned above that
the CO is below 15ppm. Should the CO be above 15ppm then the 10
minute auto shut off countdown will not begin till the CO has gone
below 15ppm.
F. Activating the Backlight
1. Follow the procedure in “A” above.
2. Press and hold down the Func button for 2 seconds. The back
light will come on and the icon will appear on the LCD.
3. Light will automatically turn off after 20 seconds to preserve
battery life.
G. Saving Data
1. Once you have obtained a reading and want to save it, press
the Store button once.
2. The display will show “Stor”. Press the Scroll/Enter button and
“Addr” and a number from 0 to 49 will flash.
3. Using the up and down arrows, select the desired location to
save the readings.
4. Press the Scroll/Enter key once. The 706 will store the read
-ings, “End” will be displayed and “Yes” will flash. Press the
Scroll/Enter button if you are finished printing or use the Arrow
buttons to select No to print again.
Appendix C: ERROR CODES & TROUBLESHOOTING
The 706 analyzer will display certain codes to let you know of a malfunction.
Code
Displayed
Code Definition
Possible Causes
Corrective Action
Flo
Err
Pump not drawing sample at
correct flow rate.
Blockage / kink in flue probe
hose.
Dirty or blocked filter(s).
Worn pump.
Check and rectify.
Replace filter(s).
Return to TPI for service.
InIt
CO
Err
Carbon monoxide sensor
failed to initialize.
Flue probe connected to 706
prior to power up.
706 did not purge completely
from last sample.
Worn or defective carbon
monoxide sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
Lo
bat
Low battery.
Battery needs to be charged. Charge battery. If the battery
won’t hold a charge, replace
the battery.
oFL
Overflow indication. The car-
bon monoxide being mea-
sured is above the instru-
ments capability.
CO being measured is too
high or low.
Remove the CO source and
allow the 708 to purge.
*Sensor replacement requires calibration gas.
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