Intertec Data Systems TA User manual

Operating Instructions
Temperature switch TA
HOM183166987Ien-2 • 07/05/2019

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Page 2 / 7 HOM183166987Ien-2
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Table of contents
1 General ....................................................................................................................................................................3
2 Use ...........................................................................................................................................................................3
3 Explanation of symbols for warnings and signal words .................................................................................... 3
4 Installation accessories ......................................................................................................................................... 3
5 Technical Data ........................................................................................................................................................3
6 Installation Instructions .........................................................................................................................................4
7 Connection..............................................................................................................................................................5
8 Maintenance............................................................................................................................................................6
9 Troubleshooting .....................................................................................................................................................6
10 Safety information ..................................................................................................................................................6
11 Deinstallation .........................................................................................................................................................6
12 Disposal...................................................................................................................................................................6
13 Declaration of Conformity ..................................................................................................................................... 7
14 Further information and service ........................................................................................................................... 7

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Operating Instructions Temperature switch TA
HOM183166987Ien-2 Page 3 / 7
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
1 General
These operating instructions describe the safe and
proper way to work with the device. The safety informa-
tion and instructions given as well as the local accident
prevention regulations and general safety regulations
valid in the area of application must be complied with.
These instructions are a constituent part of the instru-
ment and need to be kept in the immediate vicinity of the
device accessible to personnel at all times.
Before starting any work, the operating instructions
should be read in full.
2 Use
The temperature switch TA.. is manufactured according
to the guideline Directive from Ministry of Employment
and Labor No. 2016-54 and serves as a thermostat, fault
alarm or thermal fuse. It can be used in areas where ex-
plosive gas/air or dust/air mixtures can occasionally be
expected.
The types TAE.., TAS.. and TAES.. are supplied with a
connecting cable. An Ex junction box is used for series
switching with an electrical heating unit.
The type TAI... is already integrated in the connecting
cable of a heating unit at the factory.
The temperature switches are approved in Ex zone 1
and zone 2 for device categories G/ D, in temperature
class T6.
Product approval 18-KA4BO-0094 and 18-KA4BO-0093
with appendices and supplements, as well as IEC
Scheme Certificate IECEx PTB 07.0054.
See http://www.intertec.info
3 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 haz-
ardous situation. Additional safety information can be
found at the beginning of this manual.
Safety instructions which must be adhered to are high-
lighted as follows:
DANGER
DANGER
This sign is warning about an extremely hazardous situ-
ation which, if not heeded, will lead to death or serious ir-
reversible 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.
4 Installation accessories
The following are included in the scope of delivery:
Piece Name
1 Thermostat
1 M 6x25 hex bolt
1 Spacer made of GRP
If one of the components listed here is not included in
the scope of delivery, then please contact the manufac-
turer.
5 Technical Data
Rated voltage max. 250 V respect-
ively 400 V

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Operating Instructions Temperature switch TA
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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Permitted operating voltage max. 275 V respect-
ively 400 V
Rated current (in compliance
with VDE 0298)
max. 10 A
Ambient temperature - 60 to + 60 °C
Max. permitted operating tem-
perature
- 60 to + 180 °C
Temperature tolerance +/- 3°C
Dimensions (height x wrench
size)
90 x (WS) 24 mm
Material Seawater-proof alu-
minium, black anod-
ized
Mean Time Before Failure 50.000 h
Storage temperature - 60 to + 80 °C
6 Installation Instructions
• The connecting cable must have a fixed installation
and must be protected mechanically.
• The connecting cable (cable extension) must be con-
nected via a housing that complies with the require-
ments of one of the types of protection specified in
the standards of Ministry of Employment and Labor,
appendix 6 of notification 2016-54, if the connection
is made in a potentially explosive atmosphere.
• When determining the operating temperature (max.
180°C), the maximum permissible ambient temperat-
ure, self-heating and possibly heat conduction (me-
dium) must be taken into account.
• In the dust Ex area, the applicable requirements of
KS C IEC 60079-14 must be complied with.
To fix the thermostat at the heater type as shown in
Fig.1, there are M6 holes on the sides of the block.
• Turn the threaded rod supplied with the bolt package
of the VARITHERM approx. 5 mm into one of these
threaded holes.
• Put on the spacer made of GRP
• Put on the M6 thread of the TAE at the end of the
threaded rod and carefully tighten by turning the
TAE.
Illustration1: Installation example of a TAE with VARITHERM
heater and clearance
The heater types as shown in Fig. 2 are equipped with
slotted mounting rails.
• Slightly loosen the nut / bolt
• Insert head of bolt into one slotted mounting rail of
the finned profile, the distance piece remains out-
side.
• Carefully tighten by turning the TAE.

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Operating Instructions Temperature switch TA
HOM183166987Ien-2 Page 5 / 7
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
Illustration2: Installation example of a TAE with MULTITHERM
heater and clearance
7 Connection
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 protection against short circuit and line protection
you can use circuit breakers up to 10 A.
Additional equipotential bonding is required. The ter-
minal block designated for this purpose has the ground
sign.
In a TT or TN system, a residual current device (RCD)
must be used where the measured triggering residual
current does not exceed 100 mA. Residual current
devices with a measured triggering residual current of 30
mA are preferable. In an IT system, an insulation monit-
oring device needs to be used which switches off the
supply as soon as the insulation resistance is no greater
than 50 Ω per Volt of the rated voltage (refer also to KS
C IEC 60079-14).
1
2
J
L
N
PE
J
J
Terminal box
TAE TS
Heating
br=brown bl=blue ye/gn=yellow/green
br bl ye/gn br bl ye/gn
Illustration3: TAE with heating
J
Terminal box
TAE AM
br=brown bl=blue ye/gn=yellow/green
br bl ye/gn
Illustration4: TAE with fault alarm

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Operating Instructions Temperature switch TA
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INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
8 Maintenance
The design of the device does not require any mainten-
ance.
Functional and safety test intervals can be freely selec-
ted by the operator in accordance with the applicable
regulations.
Repairs may only be carried out by the manufacturer in
the factory.
All components have to be kept clean and free of dust
and harmful substances that could lead to excessive
temperature rise.
In the dust Ex area, the applicable requirements of KS C
IEC 60079-17 must be complied with.
9 Troubleshooting
In case of a fault, first check the function of the down-
stream operating equipment.
The fault is caused by the temperature switch:
Fault Cause Effect/Measure
Device runs con-
tinuously
Temperature
switch (power cir-
cuit) is closed
permanently
Check installa-
tion, continuity
test of the power
circuit. Note the
switching point of
the temperature
switch!
Device does not
run
Temperature
switch (power cir-
cuit) is interrupted
permanently
Check installa-
tion, continuity
test of the power
circuit. Note the
switching point of
the temperature
switch!
The temperature switch, with the INTERTEC heating if
necessary, must be returned to the manufacturer for
checking.
10 Safety information
CAUTION
Risk of injury at the rib ends
The sharp edges on the heating ribs may cause injury if
handled incorrectly.
CAUTION
Risk of burns from a hot surface
Attainable highest temperatures:
- Max. 160°C with T3 heating systems
- Max. 100°C with T4 heating systems
- Max. 70°C with T5 heating systems
- Max. 50°C with T6 heating systems
Do not touch device during operation! Before working on
the device, allow it to cool down first.
11 Deinstallation
Disassembly may only be carried out by a trained per-
son.
DANGER
Risk of fatal injury from electric current!
If contact is made with live components, there is the risk
of fatal injury.
For this reason, switch off the voltage supply, secure
against being switched on again and check that no more
voltage is present.
Disconnect connection line from the clamps and from the
connection socket, disconnect device from bracket and
remove it.
12 Disposal
Disassemble the components of the product, taking the
applicable local labour protection and environmental reg-
ulations into consideration and make sure that the com-
ponents are recycled:
• Scrap metal
• Send plastic elements to recycling
• Sort other components according to their material
properties and dispose of them.
NOTICE
Environmental damage may be caused if dis-
posed of incorrectly!
Electrical scrap and electronics components are subject
to hazardous waste treatment and must only be dis-
posed of by certified specialists!

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Operating Instructions Temperature switch TA
HOM183166987Ien-2 Page 7 / 7
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany · [phone] · [email protected]
The local community authorities or specialist waste dis-
posal companies can provide information on environ-
mentally friendly disposal.
13 Declaration of Conformity
The manufacturer, INTERTEC-Hess GmbH, Raffiner-
iestrasse 8, 93333 Neustadt/Donau, Germany, hereby
declares in sole responsibility that the product
Product / Type designation:
TA
complies with the provisions of the following directives
Ministry of Employment and Labor No. 2016-54 complies
with the following standards, harmonized standards,
where appropriate and/or standardized documents:
Ministry of Employment and Labor, appendix 6 of notific-
ation 2016-54
Ministry of Employment and Labor, appendix 7 of notific-
ation 2016-54
Ministry of Employment and Labor, appendix 15 of noti-
fication 2016-54
KS C IEC 61000-6-4:2014
KS C IEC 60529
Marking:
18-KA4BO-0094
18-KA4BO-0093
Ex d IIC T6
Ex tb IIIC T85°C
Neustadt, May 25th, 2018
Dipl.-Ing. Martin Hess, Managing Director
14 Further information and service
If the information contained in this instruction manual
should not be sufficient in any way, then INTERTEC
would be glad to be at your disposal to provide further in-
formation and service.
Please contact your INTERTEC contact person or dir-
ectly contact
INTERTEC-Hess GmbH
Raffineriestr. 8
93333 Neustadt/Donau
Germany
Phone: [phone]
e-mail: [email protected]
Website: www.intertec.info
Warranty
The legally defined warranties and warranty periods of
24 months are applicable to our scope of supply and ser-
vices.
You will find more detailed information in the manufac-
turer warranty from INTERTEC for heating systems and
accessories.
These instructions do not claim to take all
designs, options or changes into consid-
eration, even in association with installa-
tion, operation or maintenance. INTER-
TEC does not accept responsibility for
providing information about changes
made retrospectively.