ELTRA CS-2000, Service Manual

Page: 19 / 160

Faults
19
No flow
If this message permanently remains in the “status window”, check the flow on the lower flow
meter (Rotameter). The ball has to be in the range of 180 L/h. If it is in this range, then click on
the “device state” window icon.
Fig. 8: device state window icon
Check the graph for L/h. (See software helps). If the vertical bar is not in the middle of the base
line then calibrate the flow in the software as follows.
Pre-purging
If this message permanently remains in the “status window”, click the icon of the “configuration
window”.
Fig. 9: configuration window icon
The duration of pre-purging is possibly entered much too long. Reasonable values are between
1 and 5 seconds, maximum 10 sec for very low carbon analysis.
Waiting for stability
If this message permanently remains in the “status window”, the infrared cell base lines are not
stable or out of range. Click the Base line Icon and check.
Fig. 10: Base line icon
Integration delay
The message “Integration delay” appears for as many seconds as entered in the “configuration
window”. Reasonable range is something between zero and 5 seconds. When the integration
delay starts, the induction generator starts at the same time. In other words, the software starts
the integration delay and the generator at the same time. This is valid also when the integration
delay is set to zero seconds. In this case, the generator is started but “Integration delay does
not appear in the status window. The status window displays then the next message of its
sequence, which is “Analyzing”.
Analyzing
When “Analyzing” appears in the status window, it means that definitely the command for
starting combustion is given by the software, so that if still there is no combustion, there must be
probably a hardware reason for this fault.
After starting analysis, the word “Analyzing” appears in the configuration window.
The command from the microcontroller to start the generator is not received