5 post-connection check, Post-connection check – Pyromation T82 User Manual
Page 16
Wiring
T82
16
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1
2
3
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A0019556
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7
Shielding and grounding the signal cable at one end with HART
®
communication
1
Optional grounding of the field device, isolated from cable shielding
2
Grounding of the cable shield at one end
3
Supply unit
4
Grounding point for HART
®
communication cable shield
NOTICE
If the shielding of the cable is grounded at more than one point in systems without
potential matching, power supply frequency equalizing currents can occur that damage
the signal cable or have a serious effect on signal transmission.
►
In such cases the shielding of the signal cable is to be grounded on only one side, i.e. it must
not be connected to the ground terminal of the housing (terminal head, field housing). The
shield that is not connected should be insulated!
5.5
Post-connection check
Device condition and specifications
Notes
Is the device or cable undamaged (visual inspection)?
--
Electrical connection
Notes
Does the supply voltage match the specifications on the nameplate?
U = 11 to 42 V DC
Do the cables have adequate strain relief?
--
Are the power supply and signal cables correctly connected?
Are all the screw terminals well tightened and have the connections of the spring terminals been
checked?
--
Are all the cable entries installed, tightened and sealed?
--
Are all the housing covers installed and tightened?
--