Electrical connection Deltabar FMD71, FMD72
26 Endress+Hauser
6.3 Connecting the measuring unit
6.3.1 Terminal assignment
L
WARNING
Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣
Switch off the supply voltage before connecting the device.
L
WARNING
Electrical safety is compromised by an incorrect connection!
‣
In accordance with IEC/EN61010 a separate circuit breaker must be provided for 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.
Connect the device in the following order:
1. Check whether the supply voltage matches the supply voltage indicated on the
nameplate.
2. Remove the housing cover.
3. Guide cable through the gland.
4. Connect device in accordance with the following diagram.
5. Screw down housing cover.
Switch on supply voltage.
4... 20mA
Test
Test
Test
4... 20mA Test
1
8
6
7
2
3
4
5
A0019989
1 Housing
2 Supply voltage
3 4 to 20 mA
4 Devices with integrated overvoltage protection are labeled "OVP" (overvoltage protection) here.
5 External ground terminal
6 4 to 20 mA test signal between positive and test terminal
7 Internal ground terminal, minimum supply voltage = 12 V DC, jumper is set as illustrated in the diagram.
8 Jumper for 4 to 20 mA test signal,
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