Internal Calibrated Leak Replacement - Pfeiffer Vacuum ASM 340 D Maintenance Instruction

Leak detector
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Reassembly
► Follow the disassembly steps in reverse.
5.7 Internal calibrated leak replacement
Prerequisite
► Remove the front cover (see chapter "Front cover disassembly/reassembly").
Disassembly
4x
4x
The 4 magnets and backplates are kept for reassembly.
Checking the condition of the internal calibrated leak
Change the internal calibrated leak if it has significant impact marks: it must be replaced.
Recalibration of a calibrated leak with tank
To guarantee the reliability of the test, we recommend that you regularly recalibrate (2
years recommended) every calibrated leak with tank to check its leak rate: this applies to
both internal and external calibrated leaks.
Return the calibrated leak for recalibration to the manufacturer's service center.
1
Service - Maintenance
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