5 Technical data
MANUAL TME400-VCF · EN08 · July, 01
st
2021
5.1.3.
Outputs
For use of the TME400 in hazardous areas the values for the HF, LF and alarm out-
put must be taken from the ATEX certificate.
5.1.4. Digital interface
For use of the TME400 in hazardous areas the values must be taken from the ATEX
certificate.
When using the RS485 interface, the device must be supplied with power via
U
ext
.
In an Ex version, the connection must only be made to a certified, intrinsic
safe current circuit.
The Ex-relevant connection values are specified in the approval.
5.1.5. Current loop connection
External resistance (max.)
See: Figure 14: Load depending on feeder supply