Assemble The Electronic Unit; Establishing An Electrical Connection; Establishing The Ethernet Connection - Pfeiffer Vacuum PrismaPro QMG 250 Translation Of The Original

5.3 Assemble the electronic unit
Danger to life caused by electric voltage on the QME electronic unit
You may only attach the electronic unit to a correctly installed QMA analyzer (earth connection). The
24 V supply line of the SP current supply may never be connected if the connection of the QMA Ana-
lyzer is not screwed tight to the QME electronic unit. Only qualified service personnel may open the
QME electronic unit.
There are no parts in the QME electronic unit that should be maintained by the user.
► Install the QMA analyzer correctly before installing the QME electronic unit.
► Establish a correct earth connection between the components.
► Only have the QME electronic unit opened by qualified service personnel.
► Never operate the QME electronic unit when opened.
Damage caused by overheating the QME electronic unit
The ambient temperature must not exceed the permissible operating temperature of the device. The
best performance is achieved when the QME electronic unit is not in the vicinity of high sources of
heat where it is exposed to high temperature fluctuations.
► Ensure unobstructed air circulation.
► Make sure that the ventilator installed on the front panel is working during operation.
► Make sure that air can enter through the openings on the front panel of the QME and exit unob-
► Observe the operating temperatures (see Technical data).
Damage due to bending contacts
If you apply force to the red electronics housing when mounting the angled electronics unit, you may
cant the contacts. This bends and damages the contacts.
► Only apply force to the angled connection housing of the electronics unit.
Prerequisite
● QMA 250 analyzer correctly installed on the vacuum chamber.
Required material
● Analyzer installation kit including fastening nuts and O-ring
Procedure
1. Slide the fastening nut over the end of the analyzer.
2. Place the o-ring on the end of the analyzer.
3. Roll the o-ring down the analyzer until it sits in groove.
4. Carefully insert the electronic unit up to the notched mark on the previously installed analyzer.
5. Ensure correct positioning of the earthing tongue and the guide groove.
6. Ensure the electronic unit is properly mounted.
7. Manually tighten the fastening nut on the electronic unit.
The fastening nut compresses the o-ring and ensures firm seating of the electronic unit on the analyzer
housing.
5.4 Establishing an electrical connection
5.4.1 Establishing the Ethernet connection
The PrismaPro does not feature its own controls. A PC (host computer) or network is required for oper-
ation. 2 LEDs in the RJ-45 socket indicate the status of the interface.
Connecting the Ethernet cable
► Connect the Ethernet cable supplied to the QME 250 electronic unit and the PC.
DANGER
structed at the back of the device.
NOTICE
NOTICE
Installation
33/86