www.intertec.info
Operating Instructions Temperature Controller TC D
HOM107626379Ien-7
Page 3 / 6
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany ·
+49 9445 9532-0 · [email protected]
1
Use
The
digital
temperature
controller
TC
D...
is
manufactured according to the guideline 2014/34/EU
and is intended, among other things, for controlling the
temperature of enclosures, cabinets or heat trace
cables.
The TC D... is delivered with the index "J" and can be
switched together on site with the heating source to be
regulated. It is equipped with an external sensor -index
"E"- and with the HI version can be provided with an
additional sensor connection for controlling the heating
source.
The temperature controller approved in Ex zone 1 and 2
for device categories G/ D, in temperature class T4.
2
Explanation of symbols for warnings
and signal words
The safety information warns the user about risks and
provide information on how risks can be avoided.
Safety information can be found at the start of the
chapter before the instructions which may lead to a
hazardous situation. Additional safety information can be
found at the beginning of this manual.
Safety instructions which must be adhered to are
highlighted as follows:
DANGER
DANGER
This sign is warning about an extremely hazardous
situation which, if not heeded, will lead to death or
serious irreversible injury.
WARNING
WARNING
This sign is warning about a hazardous situation which,
if not heeded, may lead to death or serious irreversible
injury.
CAUTION
NOTICE
This sign is warning about a hazardous situation which,
if not heeded, may lead to slight, reversible injury.
NOTICE
NOTE
It is essential to pay attention to this safety advice as you
may otherwise incur material damage.
INFO
Important notes and useful additional information.
3
Installation Instructions
INFO
The device may only be connected up and secured by a
trained person, taking into account the "rated voltage"
and "rated current" specified on the nameplate.
For mounting in hazardous dust areas, certified
components must be used. The connecting cables must
have a fixed installation and must be protected
mechanically.
NOTICE
Only heat-resistant connecting cables may be used.
4
Device Description
The RS 485 interface allows the interconnection of
devices in field bus networks and parameterization at a
PC via the Modbus RTU protocol. The set temperature is
adjustable in 1°C increments.
The device has a two-colour LED light on the side for
determining the status visually.
The digital temperature controller has three analogue
inputs that can each be used as an actual value
encoder:
• An external intrinsically safe KTY temperature
sensor for measuring and controlling the temperature
• An internal temperature sensor for monitoring the
housing
• Optional: The NTC sensor of the heating coil for the
electronic temperature limit
5
Technical Data
Rated voltage
max. 250 V AC
