Wiring TMT84
20 Endress+Hauser
Connector technical data:
4.5 Post-connection check
After the electrical installation of the device, always perform the following final checks:
Wire cross-section 4 x 0.8 mm
Connection thread M20 x 1.5 / NPT ½"
Degree of protection IP 67 as per DIN 40 050 IEC 529
Contact surface CuZn, gold-plated
Housing material 1.4401 (316)
Flammability V - 2 as per UL - 94
Ambient temperature –40 to +105 °C (–40 to +221 °F)
Current carrying
capacity
9 A
Rated voltage Max. 600 V
Contact resistance 5 m
Insulation resistance 10
9
Device condition and specifications Notes
Are the device or the cables free of damage (visual check)? -
Electrical connection Notes
Does the supply voltage match the specifications on the nameplate? 9 to 32 V DC
Do the cables used comply with the specifications? Fieldbus cable, ä 15
Sensor cable, ä 14
Do the cables have adequate strain relief? -
Are the power supply and signal cables correctly connected? Chap. 4.1
Are all the screw terminals well tightened and have the connections of the spring
terminals been checked?
ä 14
Are all the cable entries installed, tightened and sealed?
Are all the housing covers installed and tightened?
Electrical connection of fieldbus system Notes
Are all the connecting components (T-boxes, junction boxes, connectors, etc.)
connected with each other correctly?
-
Has each fieldbus segment been terminated at both ends with a bus terminator? -
Has the max. length of the fieldbus cable been observed in accordance with the
fieldbus specifications?
ä 15Has the max. length of the spurs been observed in accordance with the fieldbus
specifications?
Is the fieldbus cable fully shielded and correctly grounded?
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