multi N/C pharma HT
Troubleshooting
111
Error indication
In < 120 ml/min; Out < 110 ml/min
Cause
Remedy
¡
No carrier gas.
¡
The hose line is leaking.
¡
Turn on the carrier gas on the pressure
reducer.
¡
Search for and remedy the leak.
¡
The inlet pressure of the carrier gas sup-
ply is too low.
¡
Set the carrier gas inlet pressure cor-
rectly.
¡
The pressure switch in the analyzer was
triggered simultaneously with error 10:
Gas pressure error.
¡
See the remedy for 10: Gas pressure er-
ror.
¡
The MFC is faulty.
¡
Inform the service.
Error indication
In < 120 ml/min;
Out =
120 ± 10 ml/min
¡
No carrier gas.
¡
Turn on the carrier gas on the pressure
reducer.
¡
The inlet pressure of the carrier gas sup-
ply is too low.
¡
Set the carrier gas inlet pressure cor-
rectly.
¡
The MFM is faulty.
¡
Inform the service.
Error indication
In 120 ml/min; Out > 130 ml/min
Cause
Remedy
¡
The Peltier cooling is insufficient, simul-
taneous with error message Peltier tem-
perature outside range.
¡
Check the cooling from above on the TIC
condensate container. The formation of
condensation water on the cooling block
indicates that the cooling is working.
¡
The MFC is faulty.
¡
Inform the service.
Error indication
In; Out = 0 ml/min
Cause
Remedy
¡
A hose line is clogged.
¡
Remove and rinse the clogged hose line.
Reinstall it again afterward.
¡
Replace the clogged hose line.
¡
No method loaded.
¡
Load a method.
Error indication
Values of the NDIR detector displayed in yel-
low under Optical bench.
¡
The analog values of the detector are at
the edge of the working range.
¡
Check the halogen trap. Replace the fill-
ing if necessary.
¡
Contact the application team and get
tips on application regulations for diffi-
cult sample matrices.
The analog values of the NDIR detector, the ADU values, can be checked in the software
with the Instrument |Component Test menu option in the Optical bench tab.
You can continue measurement even if the ADU values are displayed in yellow. The dis-
play notifies you that the detector is leaving the optimum working range.
The ADU values slowly shrink due to aging. If the values drop after a few analyses, the
analysis gas is probably causing damage to analyzer components.
