� !S!;���Technology,
Inc.
TCT-327-MOD
Ill..'
3750 Monroe Avenue
Pittsford°, New York 14534-1302
�� (716) 383-8280 • FAX (716) 383-8386
Hi-Speed type S TC Isolated Transmitter
Instruction Manual
1.0 INTRODUCTION
These instructions ref er to the above model. Supplementary sheets
are attached if the unit has special options or features. For detailed
specifications, see page 4 or refer to the Data Bulletin. All ADTE CH
instruments are factory calibrated and supplied with a label detailing
the calibration. Adjustments are normally not necessary. A simple
check must be performed to verify calibration before installation to
ensure that it matches the field requirement.
2.0 GENERAL DESCRIPTION
The TCT-327-MOD transmitter accepts a type S thermocouple input
and provides a linearized and isolated output representing
temperature at a rate of 500 samples per second (130 Hz
bandwidth). Calibration is extremely easy with Adtech's Smart
Touch®
technology. Simply input your zero value, touch a button,
input your span value and touch another button, and the unit is
calibrated.
The isolated output resolution is 12 bits and provides 0-5 Vdc.Other
voltage or current output signals are available (see table 1 page 3)
Isolation is 600 volts ac or 1000 volts de from the input to the output
/ power supply. Power requirements are 15 to 42 Vdc at 40 ma
maximum.
The primary features are:
• Wide range - covers the full range of the ISA standard type S
thermocouple.
• Output setup is via plug in jumpers.
• High accuracy, input resolution of 0.6µv for 0.1 °C resolution.
• High speed (500 samples per second) linearized conversion.
• RFI resistant.
• NO INTERACTION of zero and span controls.
• Adtech Smart Touch® calibration.
• Small size - DIN mounting package (1 "w x 3.1 "h x 3.6"d).
• Options for NEMA 4 and NEMA 7 housings, SNAP TRAK and
surface mounting.
3.0 INSTALLATION
Electrical Connections
The wire used to connect the instrument to the control system 1/0
should be a twisted pair(s) and sized according to normal practice.
Shielded cable is not normally necessary (if used, the shield must
be grounded at the input negative of the ADTECH instrument and
left floating at the sensor).
-1-
Six position compression terminal blocks are provided for 1/0 and
power connection. A housing ground terminal is not required due
to non-metallic housing.
Controls
Instrument controls consist of the following:
• 8 position switch for input configuration and calibration
options.
• Jumper for zero based
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elevated output.
• Output zero and span pots.
• Input zero and span push buttons (Adtech
Smart Touch®)
4.0 MAINTENANCE
These instruments are electronic and require no maintenance
except periodic cleaning and calibration verification. If the unit
appears to be mis-operating it should be checked per sections 6.0
and 7.0. MOST problems are traced to field wiring and
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or
associated circuits. If the problem appears to be with the
instrument, proceed to sections 6.0 and 7.0.
5.0 CONNECTIONS
Standard connections are shown below and on the instrument face
plate, Data Bulletin or on attached supplementary sheets.
(+)------
Type S TC Input
(-)
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Common
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(-)------
0 to 5Vdc Output
(+)------
Power 15 to
42VDC
...... -----(+)
(8/ 99) 190-A-000097 Rev. A
