www.intertec.info
Operating Instructions CP VARITHERM DBPA
HOM146742411Ien-6
Page 3 / 8
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany ·
+49 9445 9532-0 · [email protected]
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
Directive INMETRO No. 179, of May 18
th
, 2010 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
Page 4]
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 NCC 17.0136 X with appendices and
supplements, as well as IEC Scheme Certificate IECEx
PTB 07.0052X.
See http://www.intertec.info
3
Special conditions for safe use
1. The connecting cable must have a fixed installation
and must be protected mechanically.
2. If connection is made in the potentially explosive
area, the connecting lead shall be connected by
means of an enclosure that meets the requirements
of a type of protection specified in ABNT NBR IEC
60079.
3. Installation shall be made with due regard to the
maximum permissible temperatures of neighbouring
components.
4. The maximum admissible ambient temperature, the
self-heating rate and, if required, the thermal
conduction (medium) shall be considered in
determining the operating temperature (max. 180°C).
5. Additional conditions for alternate use of
thermostats, see concerning test certificate. They
have to be separately certified to the same
standards.
6. Special conditions for some connecting cables have
to be included in the operating manual and have to
be noticed by the installer.
7. lf used in dust-ex-areas the concerning requirements
of ABNT NBR IEC 60079-14, of ABNT NBR IEC
60079-17 and ABNT NBR IEC 60079-19 have to be
considered.
8. The manufacturer's operating manual shall be
observed.
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.
