Teledyne BDS-3000 - Oxygen analyzer - Manual (Page 60)

Operation BDS 3000
Teledyne Analytical Instruments 46
active automatically when the reading goes over 50 ppm as described in
Section 3.6.
4.3.10 Troubleshooting Screen
This System function provides access to troubleshooting
information. This information will be helpful to TAI technical support
staff.
Note: To use this function, it is recommended that known span
gas be flowing through the system before entering this
function.
Once the span gas has been flowing for at least five minutes, Press
the SYSTEM key and access the Trbsht on the third screen.
GasBkgnd TempComp
Trbsht
Press the ENTER key. The VFD display will scroll through four
screens with a five seconds delay each. The values shown are frozen
from the moment the System key was pressed (that is why is
important not to enter the System menu until span gas has flowed for a
while).
First Screen:
FCalib_factor = 4.581 (slope calibration, default value
shown)
AtoD_Ave =115810 (Average ADC count reading of
sensor amplifier on the span gas,
range: 0 to 260,000)
Second Screen:
lOffset[0] = 2480 (ADC count of offset of the first
gain of sensor amplifier)
lOffset[1] = 2430 (ADC count of offset of the second
gain of sensor amplifier)
Third Screen: