Technical data

49
LevelWave LR01HB EML3020 A-(en)
4.4 Electrical connection for current output
4.4.1 Non-Ex devices
4.4.2 Devices for hazardous locations
4.5 Protection category
• Make sure that the gaskets are not damaged.
• Make sure that the electrical cables are not damaged.
• Make sure that the electrical cables agree with the national electrical code.
• The cables are in a loop in front of the device 1 so water does not go into the housing.
• Tighten the cable feedthroughs 2.
Figure 4-12: Electrical connections for non-Ex devices
1 Power supply
2 Resistor for HART
®
communication
3 Optional connection to the grounding terminal
4 Output: 12...30 VDC for an output of 22 mA at the terminal
5 Device
DANGER!
For electrical data for device operation in hazardous locations, refer to the related certificates of
compliance and supplementary instructions (ATEX, cFMus, ...). This documentation can be
downloaded from our website.
INFORMATION!
The device fulfills all requirements per protection category IP 66/67. It also fulfils all requirements
per NEMA type 4X (housing) and type 6P (antenna).
DANGER!
Make sure that the cable gland is watertight.
Figure 4-13: How to make the installation agree with protection category IP 67