Intertec Data Systems CP MICROTHERM DC.A User manual

Operating Instructions
CP MICROTHERM DC.A
HOM2540241291Ien-0 • 14/12/2021

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Page 2 / 11 HOM2540241291Ien-0
1 General ....................................................................................................................................................................3
2 Use ...........................................................................................................................................................................3
3 Special conditions for safe use............................................................................................................................. 3
4 Explanation of symbols for warnings and signal words .................................................................................... 3
5 Safety information ..................................................................................................................................................4
6 Installation accessories ......................................................................................................................................... 4
7 Technical Data ........................................................................................................................................................4
8 Installation...............................................................................................................................................................5
9 Connection..............................................................................................................................................................5
10 Commissioning....................................................................................................................................................... 7
11 Maintenance............................................................................................................................................................7
12 Troubleshooting .....................................................................................................................................................7
13 Deinstallation .........................................................................................................................................................7
14 Disposal...................................................................................................................................................................7
15 Declaration of Conformity ..................................................................................................................................... 8
16 Further information and service ........................................................................................................................... 8
17 Certificate CCC ....................................................................................................................................................... 8
17.1 CCC certificate CP ...THERM No. 2020322312003123 valid_20251102.........................................................8

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Operating Instructions CP MICROTHERM DC.A
HOM2540241291Ien-0 Page 3 / 11
1 General
These operating instructions describe the safe and
proper way to work with the device. The safety
information 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 instrument 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 CP..THERM heaters are manufactured according to
standard GB 3836.13-2013, GB 3836.15-2000, GB
3836.16-2006, GB 50257-2014, GB 12476.2-2010, GB
15577-2007 and are licensed for direct heating through
flange-mounting (conduction) or for room heating
(convection) in Ex-zone 1 and Zone 2 for instrument
categories G/ D in temperature classes T3 to T6. You
will find the temperature class for your device on the
label. See Technical Data section.
The areas of application are:
• Frost protection
• Condensation protection
• Maintaining temperature
The standard design has a room thermostat integrated in
the connecting cable for frost protection applications or a
safety thermostat for maintaining temperature. If a TAE
is used, the respective operating instructions must be
complied with.
Product approval GYJ17.1169X with appendices and
supplements.
See http://www.intertec.info
3 Special conditions for safe use
• When installing, using and maintaining this heater,
the user must follow this operating instructions and
the following standards:
GB 3836.13-2013: Explosive atmospheres - Part 13
Equipment repair,overhaul and reclamation
GB 3836.15-2000: Electrical apparatus for explosive
gas atmospheres - Part 15 Electrical installations in
hazardous areas (other than mines)
GB 3836.16-2006: Electrical apparatus for explosive
gas atmospheres - Part 16 Inspection and maintenance
of electrical installation (other than mines)
GB 50257-2014: Code for construction and acceptance
of electric equipment on fire and explosion hazard
electrical equipment installation engineering
GB 12476.2-2010: Electrical apparatus for use in the
presence of combustible dust - Part 2 Selection and
installation
GB 15577-2007: Safety regulations for dust explosion
prevention and protection
• This heater is equipped with a ground terminal and
must be connected to the equipotential bonding rail/
grounding.
• At the installation site it must be prevented getting
the heater in contact with gases which could corrode
the aluminium alloy.
• Please also note the requirements in the Certificate.
4 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.

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Operating Instructions CP MICROTHERM DC.A
Page 4 / 11 HOM2540241291Ien-0
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.
5 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.
6 Installation accessories
The following are included in the scope of delivery:
Piece Description
1 Heating unit
1 Angle bracket made of flat steel
1 Packet of screws containing the following:
2 Hexagon bolts M 6x12
1 T-head bolt type 28/15, M 6x15
2 M6 flat square nut
1 Washer shape A 6.4
2 Lock washers shape J 6.4
1 M6 hex nut
If one of the components listed here is not included in
the scope of delivery, then please contact the
manufacturer.
7 Technical Data
Protection class IP66/IP68 1bar/30min
Rated voltage max. 250 V AC
Permitted operating voltage max. 250 V AC
Rated current (in
compliance with VDE 0298)
max 10 A
Ambient temperature - 60 to + 80 °C
Max. permitted operating
temperature
- 60 to + 180 °C
Switching capacity of fault
alarm (AM)
10 A / 275 V AC
Connecting cable Silicone hose cable,
notch- and oil resistant, 3
x 1,0 mm² Ø8,5 mm
Connecting cable AM Silicone hose cable,
notch- and oil resistant, 3
x 1,0 mm² Ø8,5 mm
Material Seawater-proof
aluminium, black
anodized
Mean Time Before Failure 50.000 h
Storage temperature - 60 to + 80 °C
Special voltages with corresponding power adjustment
and component selection are possible.
Profile type "N" Height x
Width x Depth
155 x 50 x 50 mm
INFO
You will find the precise technical data for your
instrument on the label.

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Operating Instructions CP MICROTHERM DC.A
HOM2540241291Ien-0 Page 5 / 11
Temperature class
Thermostat
Rated output
Rated voltage/Operating voltage
Illustration1: Example: CP MICROTHERM DCNA 50 T3 TS10
label
8 Installation
NOTICE
Carefully remove
When removing from the packaging and during
transport, the connection line must not be stressed or
bent.
For free convection, the heater needs to be installed with
ribs standing vertically. The minimum distances to the
floor and to devices above it must be complied with. The
label needs to remain legible.
If an additional TAE thermostat is switched in series,
then it can be attached to the surface of the heater
(thermal coupling). The minimum distance also needs to
be adhered to here. Refer to the following drawing.
To ensure operational safety, the heater must operate
under temperature conditions which will NOT exceed the
trigger temperature of the limiter.
The operating temperatures must be adhered to.
The connection cable must be permanently installed up
to the inlet into the on-site junction box, taking the
permissible bending radius = 5 x outer diameter into
consideration.
Illustration2: Installation example MICROTHERM with TAE or
TS and clearance
Additional installation material, such as rails or panels
and also junction boxes, are not included in the standard
scope of delivery (see Installation accessories [}Page4])
and must be ordered additionally.
9 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.
Where operating voltage = measured voltage (rated
voltage), then the heater is at its rated output. Mains
voltage fluctuations up to 10 % are then permissible.
Each heater with integrated TS thermostat must be
preceded by a 10 A fuse or a motor protection switch
with short-circuit and thermal quick release (set to 10 A)
as short-circuit protection. When using a heater without
integrated thermostat, the fuse protection can be
selected according to the cross-section of the supply
cable.

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Operating Instructions CP MICROTHERM DC.A
Page 6 / 11 HOM2540241291Ien-0
Additional equipotential bonding is required. The
terminal block designated for this purpose has the
ground sign.
ATTENTION:
Never remove the
adapter/ cable gland!
Illustration3: Example heater with KLE connection
CAUTION
NOTICE: Do not remove adapter/ cable
connection to connect up the heater!
This would cause irreversible damage to the heater and
this would mean that the explosion protection can no
longer be warranted.
The illustration may deviate from the heater.
1
2
J
L
N
PE
JJ
J
Junction box
TAE TS
Heater
Option AM
bn=brown bl=blue ye/gn=yellow/green bk=black gy=grey
bn bl
ye/gn
bk gy
Illustration4: CP ..THERM with TAE

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Operating Instructions CP MICROTHERM DC.A
HOM2540241291Ien-0 Page 7 / 11
1
2
J
L
N
PE
J
Terminal box
TS
Heating
Option: FA
br=brown bl=blue ye/gn=yellow/green bk=black gr=grey
br bl
ye/gn
bk
gr
Illustration5: CP ..THERM with TS
10 Commissioning
If the heater is installed in accordance with the notes in
the Installation [}Page 5] section and Connection [}
Page 5] sections, then the radiator may be
commissioned.
CAUTION
Sufficient heat dissipation must be ensured.
Unauthorized covers must be removed as otherwise
there is the risk of the heater overheating.
The heating circuit is permanently disconnected by a
temperature melt fuse which can't be reset if these
installation instructions are not adhered to.
11 Maintenance
The design of the device does not require any
maintenance.
Functional and safety test intervals can be freely
selected 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 GB
3836.13-2013 must be complied with.
12 Troubleshooting
If the heater fails, check the installation. Carry out a
continuity test on the heating circuit. Pay attention to the
connection diagram and switching point of the
thermostat!
In the case of overheating, the thermal indicator (see
figure) indicates a discoloration. If more than four fields
are blackened, the heater must be uninstalled and
returned to the manufacturer for inspection.
Illustration6: Temperature indicator
13 Deinstallation
Disassembly may only be carried out by a trained
person.
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.
14 Disposal
Disassemble the components of the product, taking the
applicable local labour protection and environmental
regulations into consideration and make sure that the
components are recycled:
• Scrap metal
• Send plastic elements to recycling

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Operating Instructions CP MICROTHERM DC.A
Page 8 / 11 HOM2540241291Ien-0
• Sort other components according to their material
properties and dispose of them.
NOTICE
Environmental damage may be caused if
disposed of incorrectly!
Electrical scrap and electronics components are subject
to hazardous waste treatment and must only be
disposed of by certified specialists!
The local community authorities or specialist waste
disposal companies can provide information on
environmentally friendly disposal.
15 Declaration of Conformity
The manufacturer, INTERTEC-Hess GmbH,
Raffineriestrasse 8, 93333 Neustadt/Donau, Germany,
hereby declares in sole responsibility that the product
Product / Type designation:
CP MICROTHERM
was manufactured according to GB 3836.13-2013, GB
3836.15-2000, GB 3836.16-2006, GB 50257-2014, GB
12476.2-2010, GB 15577-2007 and complies with the
following standards, harmonized standards, where
appropriate and/or standardized documents:
GB 3836.1-2010
GB 3836.2-2010
GB 12476.1-2013
GB 12476.5-2013
Marking:
Ex db IIC T6~T3
Ex tD A21 IP66/IP68 T85°C,T100°C,T135°C,T200°C
CCC cert. no. : 2020322312003123
Neustadt, May 2nd, 2018
Dipl.-Ing. Martin Hess, Managing Director
16 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
information and service.
Please contact your INTERTEC contact person or
directly 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
services.
You will find more detailed information in the
manufacturer warranty from INTERTEC for heating
systems and accessories.
These instructions do not claim to take all
designs, options or changes into
consideration, even in association with
installation, operation or maintenance.
INTERTEC does not accept responsibility
for providing information about changes
made retrospectively.
17 Certificate CCC
See also
2CCC certificate CP ...THERM No.
2020322312003123 valid_20251102 [}8]
17.1 CCC certificate CP ...THERM No.
2020322312003123 valid_20251102

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Operating Instructions CP MICROTHERM DC.A
HOM2540241291Ien-0 Page 9 / 11
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APPROVAL: （节今
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