Leak Detector Condition States - Agilent Technologies VS Series Operation Manual

VS Series Helium Mass Spectrometer Leak Detectors
Display
Backing
Both Filaments
Burned Out/ No
Emission
Cal OK
Calibration Prep
Filament 1
Burnt Out
Filament 2
Burnt Out
Filament Wait
Flashing C On
Exponent Display
Gain Too High
Gain Too Low
High Background
No Ion Peak
Offset Fault
Offset Wait
Reject
Spec-Tube
2-10
Table 2-4 Leak Detector Condition States
Indicates that the leak detector is momentarily backing the foreline of the
high vacuum pump during an extended rough period. Backing occurs if the
roughing time is greater than 60 minutes or if the turbo pump is not ready.
Indicates that no filament emission is detected. This can result from a PCB or
cable problem, or burned out filaments.
Indicates that the calibration routine was executed successfully.
Indicates that the leak detector is preparing for a calibration routine.
Indicates that filament 1 of the ion source has burnt out. Filament 2
automatically lights if it is still good, and a flashing C appears in the leak
rate exponent, indicating that a calibration routine is required.
Indicates that filament 2 of the ion source has burnt out. Filament 1
automatically lights if it is still good, and a flashing C appears in the leak
rate exponent, indicating that a calibration routine is required.
Indicates that the system is lighting the filament.
Indicates that the leak detector requires calibration.
Indicates that the gain value required to calibrate the leak detector during the
calibration routine is greater than the maximum allowable value. This is
generally the result of system sensitivity being too low, due to normal system
aging.
Indicates that the gain value required to calibrate the leak detector during the
calibration routine is less than the minimum allowable value. This is generally
the result of a system leak.
Indicates a high Helium background detected during calibration self-test. This
typically, indicates a VS vacuum system leak.
Indicates a tuning/calibration failure due to the system not detecting an ion
peak during the auto-tuning routine.
Indicates an electronics failure identified during calibration self-test.
Indicates that the system is setting the Offset value.
Indicates a test object failure during an Auto Sequencer Test cycle.
See Section 2.2.4.3 "Auto Sequencer" on page 2-22.
Flashes red when the spectrometer pressure > 1.0E-4 Torr.
Description