AMA Instruments The GC 5000 BTX, Operating Manual, Page: 135 / 152

Operating Manual GC 5000 BTX; Version 5 – 11/2010 133
Fault Cause Detect and Repair
No peaks in
chromatogram 1. FID is not ignited 1. Check for condensing water with a mirror
at the FID exhaust.
Result: If there is no condensing water, the
FID flame is not burning.
2. Adjust the detector signal properly as
described in chapter 13.3.5
2. FID is contaminated 1. Switch off the analyzer and let the FID
cool down.
2. Remove the upper part of the FID by
loosening the hexagon socket screw on
the upper side of the FID with a 1.5 mm
Allen Wench.
3. Look into the FID, check whether there
are any particles or dirt on the FID jet or
on the electrode.
4. Clean FID jet and/or electrode if
necessary.
3. The 6-port valve is not
switching Check if 6-port valve is switching properly:
1. By clicking “Program steps”,
“Enrichment”,
“Sampling” and
2. By clicking “Program steps”,
“Enrichment”, “Program stopped” to
switch it back.
If the valve is not switching at all:
3. Loosen the rotor until the valve switches
properly.
4. Tighten it again as described in chapter
13.3.11.
Missing peaks or
many 0.0000 in
results file or last
result list
Method (btx.met) and /or calibration file
(btx.cal) have not been saved after
modification. 1. Save method and/or calibration file after
modifications.
“Chrom Perfect”
software does not get
connected to its
hardware (Status:
“offline in Chrom
Perfect”) 1. The serial connection
between PC board and
Lawson board is interrupted. Check the cable.
2. The power line to the Lawson
Board has been interrupted. Check the according cable.
Touch screen monitor
stays black 1. Software break-down of the monitor Switch off the monitor with the remote
control (green button) and switch it on again
with the remote control.
2. The power line of the monitor has
been interrupted
Check the according cable.