Appendix C: ERROR CODES & TROUBLESHOOTING
The 707 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 707
prior to power up.
707 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 707 to purge.
*Sensor replacement requires calibration gas.
34
Appendix D: CO ALARM & AUTO OFF SETTINGS
Setting the Carbon Monoxide Alarm Point and/or Auto Power Off Mode
The CO alarm and auto power off settings can be changed as necessary by
performing the following procedure.
WARNING :
Changing parameters in field calibration mode can adversely
affect the operation of your analyzer. Follow the instructions carefully.
1. Press and hold the FUNC and Down Arrow keys for approximately 5 seconds
until a beep is heard. Press and hold the Scroll/Enter Key down until ‘FILD
CAL’ is displayed. The 707 will cycle through a 30 second countdown then
display ‘CAL’, Air’, gAS’.
2. Use the Up Arrow Key to select ‘Air’ by making it blink. Press the Scroll/Enter
Key to accept the selection.
3. 707 Display: ‘CAL’, ‘FLo’, ‘oPEn’. Action : Press the Func Key to bypass.
4. 707 Display: ‘CAL’, ‘FLo’, ‘CLos’. Action : Press the Func Key to bypass.
5. 707 Display: ‘0ppm’, ‘Co’, ‘rEF’. Action : Press the Func Key to bypass.
6. 707 Display: ‘2000’, ‘A-r’, ‘SEt’. Action : If you are not changing the CO alarm
point press the Func Key. Otherwise press the Up and Down Keys to set the
ppm level the alarm will sound at. Factory default is 2000ppm. Press the
Scroll/Enter Key to accept the selection.
7. 707 Display: ‘Auto’, ‘oFF’, ‘En’. Action : If you are not changing the auto power
off mode press the Func Key. Otherwise press the Up and Down Arrow Keys
to enable (En) or disable (dis) the auto off function. Factory default is enabled
(En). Press the Scroll/Enter Key to accept the selection.
8. 707 Display: ‘CAL’, ‘StoP’, ‘go’. Action : Press the Up Arrow Key to select
‘StoP’ by making it blink and press the Scroll/Enter Key to accept the selec-
tion. The 707 will return to normal operation
35
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