Endress+Hauser iTEMP TMT125 Bedienungsanleitung Seite 33

TMT125
4.2.2 Fieldbus connector
The device can be supplied with the option of a fieldbus connector. The fieldbus connector is
supplied pre-assembled and wired ex works. Fieldbus connectors for retrofitting can be ordered
from Endress+Hauser as an accessory.
Supply line/T-box shielding
Use cable glands with good EMC properties, if possible with all-round contact of the cable
shielding (Iris spring). This requires small differences in potential, poss. potential matching.
• The fieldbus cable shielding must be intact.
• The shielding connection must always be kept as short as possible.
Fig. 7: Connectors for connecting to the FOUNDATION Fieldbus™
A: Fieldbus connector (pin assignment/color codes):
–1 Blue wire: FF– (terminal 2)
–2 Brown wire: FF+ (terminal 1)
–3 Grey wire: Shielding
–4 Green-yellow wire: Ground
B: Field housing
If the transmitter was ordered attached in the field housing with fieldbus connector (order code
-housing: position 3) it is supplied with the fieldbus connector pre-assembled and wired ex
works. Shielding and ground (pin 3 and 4) are connected to the terminal S of the intrinsically
safe fieldbus segment (→ å 5).
Connector technical data:
• Degree of protection IP 67
• Ambient temperature: –40 to +150 °C (-40 to 302 °F)
Endress+Hauser
Wiring
T09-TMT125FF-04-xx-xx-xx-001
33