Maintenance
38 - EN FEX300, FEX500 SM/FEX300/FEX500/FM/CSA-EN
8.2 Replacing the transmitter or sensor
IMPORTANT (NOTE)
• When replacing the transmitter or flowmeter sensor make sure that they are assigned
correctly. It is not possible to operate a flowmeter sensor of the 300 series with a
transmitter of the 500 series. The series (e.g., ProcessMaster 300 or ProcessMaster 500)
is shown on the name plate of the transmitter or flowmeter sensor.
• After replacing the transmitter, the system data must be reimported according to
information in the operating instruction (see the chapter "Downloading the system data").
8.2.1 Transmitter
Transmitter with dual-compartment housing
Transmitter with single-compartment housing
Fig. 18
Replace the transmitter plug-in as follows:
1. Switch off the supply power and wait at least 20 minutes before the next step.
2. Release the cover safety device (4) and housing cover (1).
3. Loosen screws (3) and pull out transmitter plug-in (2).
4. Replace transmitter plug-in and retighten screws (3).
5. Close the housing cover (1) and lock the cover by unscrewing the screw (4).
G00689
2 3
3
1
4
G00689-02
2 3
3
1
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