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Instructions for Use
For simplicity, the maintenance functions in this section are grouped by
recommended frequency, as shown in the following table, based on
assumed daily use.
Table 2
Scheduled Maintenance
Description
Calibration check
Replace the internal calibrated leak
Replace diaphragm on DP pump (Dry scroll
pump models only)
Replace tip seals on models: G8610B,
G8611B, G8611C,
G8611D,G8612B,G8611C
Change Oil - Models G8610A, G8611A,
G8611B, G8611D, G8612A
Maintenance functions that may be required on a demand basis, such as changing
a filament after filament failure, are listed in the following table.
Table 3
As-Required Maintenance
Function
Spectrometer cleaning
Filament replacement
Tuning adjustments
Mechanical pump fluid change Persistent, high helium background signal. Fluid contamination (dirty brown color
40
Daily
X
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.
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.
If calibration is not successful or if the system is calibrated to an external leak, tuning can
maximize the helium signal.
indicates burnt or contaminated fluid, milky white consistency indicates high water
vapor content in fluid).
12 Months
X
X
X
Most Common Symptom
Agilent Helium Leak Detector User Manual
24 Months
X
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