DT9502
20171205-V3
15
Connection
3-wire mode
•
The shieldings of the cables connected to Pt100 and to
the current loop must be connected with each other.
(see also “Application
example”)
Be careful the polarity of the cables.
The 3-wire operating mode results in less accurate
measurement than the 4-wire operating mode, as the
different resistances of the cable wires, their asymmetry,
and the various temporary resistance values of contacts
cause additional measurement errors. The use of this mode
is recommended only for those cases that are satisfied by
less accuracy.
In all other cases it is practicable to use the 4-wire operating
mode (according to the connection depicted in the previous
page).
Summary of Contents for DT9502
Page 1: ...DT9502 Intrinsically Safe Temperature Meter Transmitter Operating Instructions ...
Page 64: ...DT9502 64 20171205 V3 10 2 Application example ...
Page 84: ...DT9502 84 20171205 V3 10 9 ATEX Certification ...
Page 85: ...DT9502 20171205 V3 85 ...
Page 86: ...DT9502 86 20171205 V3 ...
Page 87: ...DT9502 20171205 V3 87 ...
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