RECKMANN R14 Series User manual

Operating
Instructions
temperature sensors with cable
for operation in hazardous areas
Sensor types:
resistance temperature detector (WTH)
mineral insulated thermocouples (MTE)
Doc 141917 | Rev. 03

RECKMANN GMBH
Werkzeugstr. 19-23
58093 Hagen
T [phone]
F [phone]
M [e-mail]
W www.reckmann.de
© RECKMANN GmbH 2018
These document shall neither be forwarded nor duplicated nor shall the contents be re-used or
shared unless express permission has been given. Offenders will be held liable for the payment of
damages. All rights reserved in the event of registration of patents, working models or design
patents.

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Table of Contents
1. Basic information ............................................................................................................................... 5
1.1 About this operating manual................................................................................................... 5
1.2 Purpose/function..................................................................................................................... 5
1.3 Use in line with intended use .................................................................................................. 6
1.4 Reasonably foreseeable misuse............................................................................................... 6
1.5 Guarantee and liability ............................................................................................................ 6
1.6 Items supplied.......................................................................................................................... 7
1.7 Contact details ......................................................................................................................... 7
2. Safety ................................................................................................................................................. 8
2.1 Standards and guidelines......................................................................................................... 8
2.2 Labels ....................................................................................................................................... 8
2.3 Formulation of safety information .......................................................................................... 9
3. Operating and process temperatures.............................................................................................. 10
4. Operating conditions........................................................................................................................ 11
5. Type codes of the models ................................................................................................................ 13
5.1 Model R14 with cable ............................................................................................................ 13
5.1.1 Type of protection code ........................................................................................... 14
5.1.2 Electrical and thermal parameters Ga/Gb ............................................................... 15
5.1.3 Electrical and thermal parameters Da/Db ............................................................... 18
5.1.4 Area of use................................................................................................................ 19
5.1.5 Special features of the thermal parameters with thermocouples........................... 22
5.1.6 Area of use................................................................................................................ 23
5.2 Model R14 with plug connector ............................................................................................ 24
5.2.1 Type of protection code ........................................................................................... 25
5.2.2 Electrical and thermal parameters Ga/Gb ............................................................... 26
5.2.3 Electrical and thermal parameters Da/Db ............................................................... 28
5.2.4 Area of use................................................................................................................ 29
5.2.5 Special features of the thermal parameters with thermocouples........................... 31
5.2.6 Area of use................................................................................................................ 32
5.3 Model RKW cable sensor....................................................................................................... 33
5.3.1 Type of protection code ........................................................................................... 34
5.3.2 Electrical and thermal parameters Ga/Gb ............................................................... 34
5.3.3 Electrical and thermal Da/Db parameters Da/Db.................................................... 36
5.3.4 Area of use................................................................................................................ 37
6. Operation/maintenance .................................................................................................................. 39
7. EU Declaration of Conformity .......................................................................................................... 40

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For your memo

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[Basic information]
1. Basic information
1.1 About this operating manual
This operating manual has been prepared in accordance with the product-specific and
application-relevant specifications from legal requirements, provisions, regulations, technical
standards, guidelines and conventions.
EU - Type Examination Certificate BVS 17 ATEX E 110 X
IECEx Certificate of Conformity BVS 17.0091X
This operating manual allows the user to become familiar with the design and function of the
temperature sensors.
1.2 Purpose/function
The listed temperature sensors with cable for operation in hazardous areas are used for
measuring process temperatures in solid, liquid and gaseous media.
NOTE
The approval is based on the power supply with only one intrinsically safe electrical circuit, which means
that a double sensor is also supplied by only one intrinsically safe electrical circuit.
The temperature class classification depends on the ambient temperature of the connection point
and the electrical characteristics of the intrinsically safe electrical circuit
(U0, I0and P0) with which the sensor is powered and it is described in the following operating
instructions for the different operating conditions.
The standard ambient operating temperature of Ex devices ranges from -20°C to +40°C, unless
otherwise specified by the manufacturer and special codes are not required.
Different atmospheric conditions (e.g. temperatures) are described in the operating instructions
with the applicable operating conditions.
The standard specified safety factor (see DIN EN 60079-0, Sec. 26.5.1.3) for calculation of the
process temperature of less 5 K for temperature classes T6 to T3 (or the characterised
temperatures ≤ 200 °C) and less 10 K for temperature classes T2 and T1 (or the characterised
temperatures ≥ 200 °C) is already taken into account in the following calculations.

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1.3 Use in line with intended use
The listed explosion-proof temperature sensors are intended exclusively for temperature
measurement within the following standard values and parameters, particularly the electrical and
thermal limits.
1.4 Reasonably foreseeable misuse
Any use that does not conform to the intended use or is outside the standard values and
parameters listed in this document is considered misuse.
1.5 Guarantee and liability
The general terms and conditions of RECKMANN GMBH apply in all instances.
For the warranty to take effect, the following conditions must be met:
#The temperature sensors may only be used as intended within the standard values and
parameters listed in this document.
#No technical modifications may be undertaken by the user.
#Only original spare parts and consumable parts that have been approved by the manufacturer
may be used for repairs.
Limitation of liability
The manufacturer does not accept any liability for damage due to the following circumstances:
#Non-compliance with this manual
#Use outside the intended use
#Use by untrained personnel
#Unauthorised modifications
#Technical changes
#Use of non-approved spare parts

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1.6 Items supplied
The actual items supplied may vary from the explanations and illustrations described in this
manual due to the use of special models, the utilisation of additional options in the order or the
most recent technical changes.
The obligations agreed in the delivery contract, the general terms and conditions and the terms of
delivery of the manufacturer and the statutory regulations valid at the time of the contract are all
applicable.
1.7 Contact details
RECKMANN GMBH
Werkzeugstr. 19-23
58093 Hagen
T [phone]
F [phone]
M [e-mail]
W www.reckmann.de

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2. Safety
2.1 Standards and guidelines
The explosion-proof temperature sensors have been designed according to the currently
applicable rules of engineering and accepted safety standards.
During the design phase, all basic safety requirements, standards and directives were applied. The
safety of the sensors is documented by the EU Declaration of Conformity (chapter 7 „EU
Declaration of Conformity of Conformity“).
All specifications pertaining to safety relate to the currently valid regulations of the European
Union. Applicable laws and national regulations in other countries must be adhered to.
In addition to the safety instructions in this Manual, general accident prevention and
environmental protection regulations must also be complied with. All requirements of the
operating instructions must be followed without restriction.
2.2 Labels
The temperature sensors documented in our instructions are labelled in accordance with their
model and area of operation (see also Doc 141921).
For operation in mines with potentially explosive atmosphere (methane):
#I M2 Ex ia I Mb
For operation in the hazardous area of Zone 0, 1 and 2 with gas (gas)
#II 1G Ex ia llC T1...T6 Ga,
#II 1/2G Ex ia llC T1...T6 Ga/Gb
#II 2G Ex ia llC T1...T6 Gb
For operation in the hazardous area of Zone 20, 21 and 22 with dust:
#II 1D Ex ia lllC T13S°C Da,
#II 1/2D Ex ia lllC T13S°C Da/Db
#II 2D Ex ia lllC T13S°C Db

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2.3 Formulation of safety information
The safety notices in this document are marked with safety symbols and formulated in
accordance with the SAFE principle. They contain specifications relating to the type and source of
danger, the possible consequences, as well as the prevention of the danger.
DANGER
Warns of an accident that will occur if the instructions are not followed. The accident can lead to severe,
potentially life-threatening injuries or death, e.g. by contact with high-voltage electrical components.
WARNING
Warns of an accident that may occur if the instructions are not followed. The accident may lead to severe,
potentially life-threatening injuries or death,
e.g. by touching high-voltage electrical components.
CAUTION
Warns of an accident that may occur if the instructions are not followed. The accident may lead to
moderate injury, for example burns, injury to the skin or crushing.
WARNING
Warns of potential material damage
NOTE
Important general notice

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3. Operating and process temperatures
Measuring resistors or thermocouples (in the mineral insulated thermocouple MTE) are used as
sensor elements with the following operating temperatures:
Resistance sensors:
#area of application from - 196°C to + 600°C depending on sensor type
(PT100, Ni100 or PT1000)
Thermocouples in mineral insulated thermocouples:
#area of application from - 200°C to max. + 1300°C depending on thermocouple (TC) type
(T, J, E, K, N, R or S)
Protection shells depending on material and welding process:
#area of application from - 196°C to max + 1200°C
Because ambient temperatures of the connection point and the actual process temperature are
often very different, suitable planning is required to ensure that the process and connection head
and/or connection cable are safely decoupled. Separating elements must meet the minimum
requirements of DIN EN 60079-26. The pipe lengths must be adapted to the process temperature.