User Manual

ELECTRICAL CONNECTIONS 4
39
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
4.1 Safety instructions
4.2 Electrical installation: 2-wire, loop-powered
4.2.1 Compact version
DANGER!
All work on the electrical connections may only be carried out with the power disconnected. Take
note of the voltage data on the nameplate!
DANGER!
Observe the national regulations for electrical installations!
DANGER!
For devices used in hazardous areas, additional safety notes apply; please refer to the Ex
documentation.
WARNING!
Observe without fail the local occupational health and safety regulations. Any work done on the
electrical components of the measuring device may only be carried out by properly trained
specialists.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
Terminals for electrical installation
Figure 4-1: Terminals for electrical installation
1 Grounding terminal in the housing (if the electrical cable is shielded)
2 Current output -
3 Current output +
4 Location of the external grounding terminal (at the bottom of the converter)
INFORMATION!
Electrical power to the output terminal energizes the device. The output terminal is also used for
HART
®
communication.