18 The Interface Solution Experts
Programmable Isolated
Thermocouple Transmitter
TIY
Making the Electrical Connections
The TIY is a loop-powered instrument. The terminals
for the power connections are marked “+PS” and
“–PS”. The input connections are marked “+IN” and
“–IN”.
When the input to the TIY is a thermocouple (T/C),
thermocouple wire must be used for the input
connections. If the input is other than a thermocouple,
thermocouple wire is not required.
Figure 6 is a typical installation hookup diagram of
the TIY. Note the polarity of the wiring connections.
Recommended Ground Wiring Practices
Moore Industries recommends the following ground
wiring practices:
•
Any Moore Industries product in a metal case
or housing should be grounded.
•
The protective earth conductor must be
connected to a system safety earth ground
before making other connections.
•
All input signals to, and output signals from,
Moore Industries’ products should be wired
using a shielded, twisted pair wiring technique.
Shields should be connected to an earth or
safety ground.
•
For the best shielding, the shield should be
run all the way from the signal source to the
receiving device. (see Note below)
•
The maximum length of un-shielded input and
output signal wiring should be 2 inches.
Note:
Some of Moore Industries’ instruments can be
classified as receivers (IPT
2
, IPX
2
, etc.) and some
can be classified as transmitters (TRX, TRY, etc.)
while some are both a receiver and a transmitter
(SPA
2
, HIM, etc). Hence, your shield ground con-
nections should be appropriate for the type of signal
line being shielded. The shield should be grounded
at the receiver and not at the signal source.
CE Conformity
Installation of any Moore Industries products that
carry the CE certification (Commission Electrotech-
nique) must adhere to the guidelines above in order
to meet the requirements set forth in applicable
EMC (Electromagnetic Compatibility) directive
2004/108/EC and specifications laid out in EMC
requirement EN 61326-1:2006 electrical equipment
for measurement, control and laboratory use.
Consult the factory for the most current information
on products that have been CE certified.
Figure 5.
Dimensions of the TIY in DIN Housing
35mm
(1.37 in)
80mm
(3.15 in)
+IN
–IN
+PS –PS
38mm
129mm
(5.07 in)
CL
133mm
(5.27 in)
138mm
(5.44 in)
(1.5 in)
ZERO
SPAN
SAVE
CANCEL
TIY
42mm
(1.65 in)
