Inficon Transpector MPH Operating Manual page 134

Table 7-1 Symptom—Cause—Remedy chart (continued)
Peakfind Error
Filament Potential
Error
Filament Current
Error
Focus Error
No spectra
7 - 4
SYMPTOM
No peak at target mass
Insufficient vacuum
Filament broken
Filament shorted
Insufficient vacuum
Filament broken
Filament shorted
Unable to start or maintain
Focus voltage
Emission is OFF
EM is ON, when operating
Contaminated sensor
Electronics failure
Pressure too low for FC
EM voltage too low
Transpector MPH electronics
box not fully engaged on
sensor
Mass calibration
Transpector MPH Operating Manual
CAUSE
Upload original configuration
file.
Return electronics box to
INFICON for repair.
Verify pressure is less than
5E-4 Torr.
Verify integrity of filament.
Verify that filament is not
shorted to ground.
Verify pressure is less than
5E-4 Torr.
Verify integrity of filament.
Verify that filament is not
shorted to ground.
Reset electronics box.
Return electronics box to
INFICON for repair.
Turn Emission ON.
Turn EM OFF.
Degas, or service sensor.
Replace sensor.
Return to INFICON for repair.
Use EM detector.
Increase voltage.
Push Transpector MPH
electronics module
completely onto sensor.
Adjust mass calibration.
REMEDY