Test Products International 712 - Manual (Page 35)

Appendix F: 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 per-
forming 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 Scroll/Enter Key down until ‘FILD CAL’ is displayed. The 712
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. 712 Display: ‘CAL’, ‘FLo’, ‘oPEn’. Action : Press the Func Key to bypass.
4. 712 Display: ‘CAL’, ‘FLo’, ‘CLos’. Action : Press the Func Key to bypass.
5. 712 Display: ‘CAL’, ‘LEAK’, ‘rEF’. Action : Press the Func Key to bypass.
6. 712 Display: ‘0ppm’, ‘Co’, ‘rEF’. Action : Press the Func Key to bypass.
7. 712 Display: ‘20.9%’, ‘o2’, ‘rEF’. Action : Press the Func Key to bypass.
8. 712 Display: ‘0.0mbar’, ‘0.0’, ‘oFS’. Action : Press the Func Key to bypass.
9. 712 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.
10. 712 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.
11. 712 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 selection.
The 712 will return to normal operation
Problem Possible Cause Corrective Action
Efficiency reading incorrect NET efficiency selected.
Ambient temperature probe
not plugged in to T2.
Incorrect fuel selected.
Select GROSS efficiency.
See section 5.3.
Plug ambient probe into T2.
See section 5.2.
Select the proper fuel for the
equipment being tested. See
section 4.1.
Readings are erratic when
working on oil fired equip-
ment. Oil filter not installed or
installed incorrectly. Make sure the optional oil fil-
ter (A773) is installed. See
Appendix D.
One or all of the following
parameters; Ratio, CO air
free, excess air, and efficien-
cy read and print dashes. Measured values are such
that the calculated values of
these parameters are out of
range. Redo combustion test. Since
these are calculated values,
the measure values must be
within certain levels for these
to display. If the measured
oxygen level is above 19.9%
these parameters won’t
read.
These parameters might not
display or be applicable in
some tests.
Pressure prints as “N/A” on
my combustion analysis print
out. During combustion analysis
the pressure function is dis-
abled. The manometer fea-
ture is a separate function
and must be printed sepa-
rately. Perform the combustion test
and then perform a pressure
test. Save each test in a dif-
ferent location and print
each test.
Battery will not charge or
hold a charge. Defective charger or battery. Replace the charger or bat-
tery.
Send to TPI for service.
Beeping noise heard during
charging. Defect in charging circuit or
shorted battery. Disconnect from the charger
and contact TPI at 800-368-
5719.
Analyzer won’t turn off Oxygen and/or carbon
monoxide levels outside lim-
its. Allow the analyzer to purge
longer.
Appendix E: ERROR CODES & TROUBLESHOOTING (Continued)