Endress+Hauser Analytik Jena multi N/C 2100S, Руководство по эксплуатации

Страница: 102 / 113

Troubleshooting multi N/C 2100S (duo, pharma)
102
Error Automatic lock leaky
Cause Remedy
¡ The automatic lock does not close cor-
rectly. ¡ Open the lock manually.
¡ Apply a manual dosing syringe with a
septum, press slightly. Check the gas
flows in the System state window. Im-
portant: An inlet pressure of 400 to 600
kPa is required for auxiliary gases for
locks.
¡
Check the hose connections of the lock
and replace the septum in the lock.
¡ If necessary, inform the service.
Error Dosing with autosampler faulty
Cause Remedy
¡ The system is leaky during injection.
¡ The sample is not drawn in without air
bubbles.
¡
The syringe content is not fully ejected.
¡ Adjust the autosampler.
¡ If necessary, adjust the syringe piston.
¡ Check the condition of the syringe.
Error Manual dosing in septum-free lock faulty
Cause Remedy
¡
Loss of measuring gas due to system
leaking during injection.
¡ Loss of measuring gas due to syringe be-
ing removed from the lock too early af-
ter injection.
¡
Slide the septum onto the canula. The
septum seals the lock during injection.
¡ Lightly press the syringe onto the lock
during injection.
¡ Check the measuring gas flow in the Sys-
tem state window during injection.
¡ Only remove the syringe from the lock
when the measuring gas indication is
stable at 160 ml/min.
¡
Ensure even injection. Leave the syringe
in the lock for the same amount of time
for all measurements.
¡ For TIC measurements, leave the syringe
in the lock throughout the whole inte-
gration if possible.
¡
Do not inject too rapidly. Decrease the
injection speed as the sample volume in-
creases.
¡ Carry-over as the sample is dosed onto
the reactor wall. ¡ Dose the sample vertically into the reac-
tor.
Error Manual dosing in lock with septum faulty
Cause Remedy
¡ Uneven dosing. ¡ Ensure even injection.
¡
Do not inject too rapidly. Decrease the
injection speed as the sample volume in-
creases.
¡ Carry-over as the sample is dosed onto
the reactor wall. ¡ Dose the sample vertically into the reac-
tor.
Error 5 V, 24 V indicator lamps on LED strip not
lighting
Cause Remedy
¡
Power supply or electronics fault.
¡
Check the electrical connections.
¡
Check the laboratory power supply.
¡ Device fuse faulty. ¡ Inform the service.