Electrical connection Deltabar FMD72
18 Endress+Hauser
7.3 Connecting the measuring unit
7.3.1 Wiring the transmitter
!
WARNING
Supply voltage switched off?
Risk of electric shock and/or explosion!
►
Switch off the supply voltage before connecting the device.
• When using the measuring device in hazardous areas, installation must comply with the
corresponding national standards and regulations and the Safety Instructions or Installation or
Control Drawings.
• All explosion protection data are given in separate documentation which is available upon
request. The Ex documentation is supplied as standard with all devices approved for use in
explosion hazardous areas.
• Devices with integrated overvoltage protection must be grounded.
• Protective circuits against reverse polarity, HF influences and overvoltage peaks are integrated.
• The supply voltage must match the power supply specified on the nameplate (see "Nameplate"
(® ä 10))
• Switch off the supply voltage before connecting the device.
• Remove the housing cover of the terminal compartment.
• Guide cable through the gland. Preferably use twisted, screened two-wire cable.
• Connect device in accordance with the following diagram.
• Screw down housing cover.
• Switch on supply voltage.
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