Bacharach PCA3, Operation And Maintenance Manual

Page: 92 / 104

PCA

3 Manual
92 0024-9473 Rev 3
CHAPTER 8. TROUBLESHOOTING
8.1. Error Symbols
Error symbols are shown in the data fields of the Combustion Test screens and
on the printout to indicate the following.
Error Symbol Description
- - -
Three hyphens or dashes indicates that the calculated data cannot
be displayed because the measured data necessary to make the
calculation is out of range. For calculations to occur, the oxygen level
must be below 18.8% and the stack temperature must be below
2,000 °F (1,093 °C).
* * *
Three stars appear in the data field of sensors that are not installed,
defective, or found to be in error during warm-up, and also in the data
fields of that sensor’s related calculated values. For example, if the
data field of either the NO or NO
2
sensor contains three stars, then
the NOx data field will also contain three stars.
X X X
Indicates sensor over range.
8.2. Diagnostics and Status Screens
The DIAGNOSTICS menu provides information regarding the operation of the
analyzer. Information includes the following.
Diagnostic Description
Time Meters Displays the run time of the
analyzer, sample pump and
purge pump in hours of
operation.
Figure 8-1. Time Meters
Main
Diagnostics
Lists the current status of the Stack and Air Thermocouple channels,
Reference Temperature channel, Pressure channel, and Battery.
O
2
Sensor Life
Displays the approximate remaining life of the Oxygen sensor.
B-Smart
Sensors
Displays the current status of all B-Smart sensors installed.
Fresh Air
Diagnostics
Fresh air diagnostics will cycle the instrument through the 60 second
warm-up to check on the status of all sensors. The probe must be in
fresh air to perform a valid check.