General Warnings; Troubleshooting Table - Gilson VERITY 1910 MS User Manual

General Warnings

WARNING
CAUTION

Troubleshooting Table

The following table details some basic symptoms, possible causes, and potential solutions for
some basic issues with the VERITY 1910 MS Detector.
Symptom/s
Cannot apply any voltages to
the spraychip assembly
There is a drop in ion signal
intensity and a reduction in
the value of the spray current
No signal; spray current
established and unchanged
72
TRoUblEShooTInG
Before troubleshooting, ensure that the VERITY 1910 MS Detector is switched off, unless
otherwise stated.
Always wear eye protection and use suitable tools when handling capillaries.
Possible cause
Interlock is engaged.
Nebulizer gas flow rate has
decreased.
Capillary tip may be clogged.
Obstruction in ion tunnel.
Air bubbles in sample line.
Ion optics have the wrong
voltages.
VERITY 1910 MS Detector is
switched off.
Pressures are not at the
operating values.
The vac-chip is clogged.
|
VERITY® 1910 MS DETEcToR
Remedy
Make sure the front door is fully closed.
Check all connections are fitted tightly.
Check the main gas supply.
Check the O-rings located in the spraychip
assembly for cracks. Replace the O-rings if
there are any cracks.
Change the spraychip. Refer to
spraychip® on page 55. Refer to
Clean the Spraychip on page 58.
Clean or change the spraychip. Refer
to spraychip® on page 55. Refer to
Clean the Spraychip on page 58.
Flow sample through the system, and allow
time for air bubbles to dissipate.
With the VERITY 1910 MS Detector on, load
one of the four default tune files, and run a
calibration.
With the VERITY 1910 MS Detector switched
on and pumped down, check that the detector
is switched on and has the correct voltage
applied to the horn.
With the VERITY 1910 MS Detector switched on
and pumped down, check the pressures in the
ion guide and the analytical chambers are at
operating values.
Replace the vac-chip. Refer to
Clean the vac‑chip Flange on page 52.
TROUBLESHOOTING TABLE CONTINUED ON PAGE 73