Models 947, 948 and 960 Leak Detectors Operations and Service Manual
4-3
Due to the effective cleaning nature of VacuSolv solvent and its residue-free properties,
Varian Vacuum Technologies’ Component and Spectrometer Tube Cleaning Kit (Varian
P/N 670029096), used in accordance with the kit instructions, is recommended for cleaning
the spectrometer tube components. The kit can also be used for fine cleaning of other parts
in the leak detector vacuum system such as valves and fittings. No rinsing steps or
high-temperature drying is required following a cleaning with VacuSolv. Although
appropriate precautions are advised, VacuSolv is compatible with most materials and does
not contain toxic chemicals or CFCs (chlorofluorocarbons).
The scheduled maintenance functions in this section are grouped by recommended
frequency, as shown in Table 4-1, based on assumed everyday use. The 947/948/960
operates at its peak when maintenance (preventive) procedures are performed at their
scheduled intervals. Read the pump manuals that came with your 947/948/960 leak
detector for more complete maintenance information specific to the pumps. See “Spare
Parts” on page 4-34 for more information.
The 947/948/960 must be calibrated to verify sensitivity at least once a day. However, other
functions may be carried out more or less often, depending on the frequency of use.
x
Table 4-1
Scheduled Maintenance
Description
Daily
12 Months
Refer to
Calibration check
●
“Calibration Check” on page 4-5
Re-calibrate the internal calibrated leak
●
“Re-calibrate the Internal Calibrated Leak” on
page 4-7
Spectrometer tube overhaul
●
“Spectrometer Tube Overhaul” on page 4-11
Filter replacement
●
Summary of Contents for 948
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