Internal Calibrated Leak Replacement - Pfeiffer Vacuum ASM 390 Additional Installation, Operation And Maintenance Instructions

Reassembly
1 Latch
1. Position the front cover on the frame and push it towards the front of the detector to clip it into the
2. Check that the control panel cable is clear: the control panel must be able to move at least 1 m
3. Reassemble the work plan (see chapter "Work plan disassembly/reassembly").
5.5 Internal calibrated leak replacement
Prerequisites
► Power off the leak detector (see chapter "Powering Off").
► Remove the work plan (see chapter "Work plan disassembly/reassembly") and the front cover
Disassembly
2
3
2
4
1 Calibrated leak
2 Fixing screws
1. Disconnect the temperature sensor from the calibrated leak. Never separate the temperature sen-
2. Loosen the 2 fixing screws without removing them.
3. Rotate the calibrated leak by 90° so that the temperature sensor is positioned above the valve as
Reassembly
1. Replace the calibrated leak.
2. Connect the temperature sensor.
2
1
2 Cover
housing of each latch.
from its support.
(see chapter "Front cover disassembly/reassembly").
2
3
1
2
3
4
sor from the calibrated leak.
shown in the illustration.
1
Temperature sensor
Valve
Service - Maintenance
1
2
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