Table 8-1 Scheduled Maintenance
Description
Daily
12 Months
24 Months
Calibration check
X
Replace the internal calibrated leak
X
Replace diaphragm on DP pump (Dry
scroll pump models only)
X
Replace tip seals on models: G8610B,
G8611B, G8611C,
G8611D,G8612B,G8611C
X
Change Oil - Models G8610A,
G8611A, G8611B, G8611D, G8612A
X
Agilent Technologies Helium Leak Detector
DRAFT 12/1
1
/17
133
For simplicity, the maintenance functions in this section are grouped by recommended
frequency, as shown in Table 8-1, based on assumed daily use.
Maintenance functions that may be required on a demand basis, such as changing a
filament after filament failure, are listed in Table 8-2.
Table 8-2 As-Required Maintenance
Function
Most Common Symptom
Spectrometer cleaning
The spectrometer is designed to operate for years without
maintenance, however actual performance depends on the
leak detector operational environment. Spectrometer
cleaning restores optimum performance if the unit shows
significant sensitivity loss or high background signal.
Sensitivity loss appears as a high gain value after a
calibration or failure to calibrate with a
gain too high
error
message.
Filament replacement
Filaments are designed to operate for several years with no
maintenance. When a filament burns out, the system
automatically switches to the other filament and notifies
you to recalibrate. The calibration notice also serves to
inform you of a filament failure. Agilent recommends that
the burned out filament be replaced at a convenient time so
that a spare is always available during leak test operations
to prevent unplanned system down time.
