eltherm ELTF User manual

www.eltherm.com
eltherm GmbH
Ernst-Heinkel-Straße 6 -10
57299 Burbach, Germany
T.: [phone]
F.: [phone]
[email protected]
BU 135
Temperature
sensor type ELTF
Operation, assembly and data
OPERATING-
MANUAL
www.eltherm.com

2
www.eltherm.com 2
operating manual
temperature sensors type ELTF
BU 135
Revision 0
CONTENT
eltherm GmbH
Ernst-Heinkel-Str. 6-10
57299 Burbach
T.: [phone]
F.: [phone]
[email protected]
Document:
86430506500XX
BU - 135
Operating manual
temperature sensors type ELTF
Author Julian Engel
Revision: 0 09.02.2023_je 09.02.2023
Reservation
We reserve the right to make technical changes. Changes, errors and misprints do not justify any no claim for compensation. For
safety components and systems, the installation instructions and the relevant standards and regulations must be observed.
BASIC INFORMATION
GENERAL DISPLAY CONVENTIONS
GOODS RECEIPT
STORAGE
DISPOSAL
DESCRIPTION & TECHNICAL DATA
DESCRIPTION
TECHNICAL DATA ELTFTE
TECHNICAL DATA ELTFPT
SPECIAL CONDITIONS
INSTALLATION
SPECIAL INSTRUCTIONS
CHOICE OF INSTALLATION POSITION
INSTALLATION OPTIONS
ELECTRICAL CONNECTION
NOTES COMMISSIONING
NOTES MAINTENANCE
MAINTENANCE
POSSIBLE ERRORS
DOWNLOADS
14
14
14
15
15
3
3
3
3
3
4
4
4
5
5
7
7
8
8
13

3
www.eltherm.com 3 www.eltherm.com
iThe WEEE logo (shown above) indicates
that this product should not be disposed of with your
household waste.
More information on disposal and
restoration of electrical and electronic
You can obtain old devices and collection points from
your local waste disposal company or from the manu-
facturer where you purchased the product.
NOTE
BASIC INFORMATION
important information and instructions for safe, eective and environmentally
compatible use.
NOTE
i
WARNING
indicates a dangerous situation. If it is not avoided, there is a risk of injury or at
least a high risk of damage.
DANGER
indicates an extremely dangerous situation. If it is not avoided, there is a danger
to life or at least a high risk of serious injury.
Importance of Retention
Follow these instructions for proper and safe use.
Retain for future reference.
indicates an potential dangerous situation. If it is not avoided, there is a risk of
damage or malefunction.
CAUTION
GOODS RECEIPT
Check the goods on receipt for transport damage or mechani-
cal damage. Damaged temperature sensors must not be used.
Compare the information on the temperature sensor with
the information on the delivery bill to ensure that the correct
material was delivered.
STORAGE
Storage should be in a dry place at an
ambient temperature of 0°C to 50°C.
To maintain the electrical properties of the
connection points and connecting leads,
thermocouples must not be stored in high humidity
or in aggressive environments.
NOTE
i
Scope of delivery
The scope of delivery of the article includes:
One temperature sensor type ELTF-PT or ELTF-Te
GENERAL DISPLAY CONVENTIONS
DISPOSAL

4
www.eltherm.com 4
operating manual
temperature sensors type ELTF
BU 135
Revision 0
DESCRIPTION
The eltherm Pt100 temperature sensors and type K & J
thermocouples are suitable for a wide range of applications
and temperatures. All temperature sensors are an optimal and
perfectly matched complement to the eltherm temperature
controllers and temperature limiters.
Even in demanding operating conditions, our products have a
long service life.
TECHNICAL DATA THERMOCOUPLES ELTFTE
DESCRIPTION & TECHNICAL DATA
0660003 ELTF-Te.1
Thermocouple Type J, Fe-CuNi
Dimensions sensor sleeve 3 x 250mm
Material of sensor sleeve Mat.No. 2.4816
Length of connecting cable 5,0m
Sheath of connecting cable Silicone
Color of connecting cable black
Diameter of single wires 2 x 0,22mm²
Insulation of single wires Silicone
Color of single wires black-white
Operating temperature
sensor sleeve
-40 to +520°C
Operating temperature
connecting cable
-90 to +200°C-90 to +200°C
Protection class IP 54
Tolerance DIN IEC 584.1-2 class I
0670021 ELTF-Te.4
Thermocouple Type K, NiCr-Ni
Dimensions sensor sleeve 1,5 x 300mm
Material of sensor sleeve Mat.No. 2.4816
Length of connecting cable 5,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable green
Diameter of single wires 2 x 0,22 mm²
Insulation of single wires Fluoropolymer
Color of single wires green-white
Operating temperature
sensor sleeve
-40 to +920°C
Operating temperature
connecting cable
-90 to +200°C
Protection class IP 54
Tolerance DIN IEC 584.1-2 class I
0670019 ELTF-Te.41
Thermocouple Type K, NiCr-Ni
Dimensions sensor sleeve 1,5 x 400mm
Material of sensor sleeve Mat.No. 2.4816
Length of connecting cable 5,0m
Sheath of connecting cable Silicone
Color of connecting cable green
Diameter of single wires 2 x 0,22mm²
Insulation of single wires Fluoropolymer
Color of single wires green-white
Operating temperature
sensor sleeve
0 to +1.100°C
Operating temperature
connecting cable
-50 to +180°C
Protection class IP 54
Tolerance DIN IEC 584.1-2 class I
Wiring diagrams ELTF-Te
Type J Type K
black
white white
green

5
www.eltherm.com 5 www.eltherm.com
TECHNICAL DATA PT100 ELTFPT
0650000 ELTF-PT.33
Dimensions sensor sleeve 6 x 6 x 46mm/
Hole 4,2mm
Material of sensor sleeve Mat.No. 1.4301
Length of connecting cable 5,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable white
Diameter of single wires 2 x 0,35mm²
Insulation of single wires Fluoropolymer
Color of single wires red-white
Operating temperature
sensor sleeve
-50 to +260°C
Operating temperature
connecting cable
-50 to +260°C
Protection class IP 65 / water vapor tight
Tolerance DIN IEC 60751“1/3B”
0650001 ELTF-PT.1
Dimensions sensor sleeve 5 x 50mm
Material of sensor sleeve Mat.No. 1.4571
Length of connecting cable 5,0m
Sheath of connecting cable PVC
Color of connecting cable black
Diameter of single wires 2 x 0,25mm²
Insulation of single wires PVC
Color of single wires red-white
Operating temperature
sensor sleeve
-50 to +80°C
Operating temperature
connecting cable
-50 to +80°C
Protection class IP 65
Tolerance DIN IEC 60751“B”
0650002 ELTF-PT.3.1
Dimensions sensor sleeve 5 x 50mm
Material of sensor sleeve Mat.No. 1.4571
Length of connecting cable 3,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable white
Diameter of single wires 3 x 0,25mm²
Insulation of single wires Fluoropolymer
Color of single wires red-red-white
Operating temperature
sensor sleeve
-50 to +250°C
Operating temperature
connecting cable
-50 to +250°C
Protection class IP 65
Tolerance DIN IEC 60751“B”
0650003 ELTF-PT.3
Dimensions sensor sleeve 5 x 50mm
Material of sensor sleeve Mat.No. 1.4571
Length of connecting cable 3,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable white
Diameter of single wires 2 x 0,35mm²
Insulation of single wires Fluoropolymer
Color of single wires red-white
Operating temperature
sensor sleeve
-50 to +260°C
Operating temperature
connecting cable
-50 to +260°C
Protection class IP 65
Tolerance DIN IEC 60751“B”

6
www.eltherm.com 6
operating manual
temperature sensors type ELTF
BU 135
Revision 0
0650022 ELTF-PT.5
Dimensions sensor sleeve 4 x 50mm
Material of sensor sleeve Mat.No. 1.4571
Length of connecting cable 5,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable white
Diameter of single wires 4 x 0,22mm²
Insulation of single wires Fluoropolymer
Color of single wires red-red-white-white
Operating temperature
sensor sleeve
-50 to +250°C
Operating temperature
connecting cable
-50 to +250°C
Protection class IP 65
Tolerance DIN IEC 60751“1/3 B”
0650040 ELTF-PT.61
Dimensions sensor sleeve 3 x 200mm
Material of sensor sleeve Mat.No. 1.4571
Length of connecting cable 5,0m
Sheath of connecting cable Fluoropolymer
Color of connecting cable white
Diameter of single wires 2x0,35mm²
Insulation of single wires Fluoropolymer
Color of single wires red-white
Operating temperature
sensor sleeve
-50 to +500°C
Operating temperature
protective sleeve
-50 to +80°C
Operating temperature
connecting cable
-50 to +180°C
Protection class IP 65
Tolerance DIN IEC 60751“B”
Wiring diagrams ELTF-PT
white
white
white
white
redred
redred
red

7
www.eltherm.com 7 www.eltherm.com
CAUTION
• Persons involved in installations and testing of elec-
trical trace heating systems should be appropriately
qualied to perform the required actions
• Electrical heat-tracing systems should be installed
under the direction of a qualied electrician who has
completed supplemental training on electrical heat-
tracing systems
• Critical work, such as making connections or termin-
ations, should be performed only by qualied person-
nel
DANGER
Before starting work on heating or connection lines
or terminals, make sure that the corresponding circuit
is switched o and secured against unintentional re-
connection
• Electrical connection / commissioning must be
carried out by a qualied electrician.
• The relevant local safety regulations must be obser-
ved.
CAUTION
CAUTION
The sensor cables must be shielded when extended;
the shielding must be grounded on one side near the
controller. The cable must not be laid parallel to lines
carrying mains voltage. The total line resistance must
not exceed 10 ohms.
The temperature sensors should be completely free of
physical damage.
NOTE
i
The suitability of the system components for the
operating temperatures and environmental conditions
should be checked. Furthermore, it should be checked
whether they are protected as required against corro-
sion and the ingress of moisture and foreign particles.
NOTE
i
SPECIAL CONDITIONS
The temperature sensor should be checked for com-
patibility with the control equipment before starting
installation.
NOTE
i
INSTALLATION
SPECIAL INSTRUCTIONS INSTALLATION
Diameter and length of the temperature sensor can
inuence the temperature measurement
NOTE
i
CAUTION
• Before and during installation, keep the ends of hea-
ting elements and kit parts dry.
• The surface on which the temperature probe is to be
mounted must be free of rust, grease, oil, etc.
• Any sharp imperfections, such as welding beads,
cement splashes, etc. should be removed.
• Make sure that the crimp terminals are the correct size
and are approved for the conductor. Also make sure
that the crimping tool is suitable and in good condi-
tion.
• Make sure the terminals are the correct size and rating
to accept the conductors.
• Ensure that connections and terminations are
arranged in such a way that they are protected from
external damage and the ingress of water or other
contaminants that may adversely aect suitability.
• Avoid damage, tensile stress, kinking and torsion of
the connected cables.
• When routing wires out, make sure they exit the insu-
lation without allowing moisture or foreign objects to
enter.
• When selecting the mounting location, observe the
IP protection class and the permissible operating
temperature.

8
www.eltherm.com 8
operating manual
temperature sensors type ELTF
BU 135
Revision 0
In complex systems, the ow behavior of the product
under all possible conditions should be evaluated be-
fore the installation position of the probes is selected.
NOTE
i
CHOICE OF INSTALLATION POSITION
If a installation position of the temperature sensor has not al-
ready been dened, the following points should be taken into
account when determining the installation position:
• Temperature sensors should be mounted in locations that
are representative of the holding temperature.
• If temperature sensors are used for ambient temperature
measurement, they should be mounted at the most unpro-
tected location.
• If two or more heating cables meet or are connected, sen-
sors should be installed at a distance of 1 m to 1.5 m from
the contact or junction point.
• If a system contains heat sinks or heat sources, sensors
should be mounted on a section of pipe at a distance of 1 m
to 1.5 m from the heat sinks and heat sources..
• If a heating circuit runs through areas with dierent ambient
temperatures, two sensors and associated controls may be
required to suitably control the pipe temperatures.
• The temperature sensors should be arranged for tempera-
ture control in such a way that direct temperature eects
from heating pipes, external heat radiation, solar radiation or
heated adjacent buildings are avoided.
• If temperature control as well as temperature limiting is
required, temperature sensors for control must be placed
at least 90° away from the heating cable with respect to the
circumference of the pipeline. The temperature sensor for
the upper temperature limit must also be located 90° from
the heating pipe, relative to the circumference of the pipe,
but not adjacent to other temperature sensors..
• In the case of temperature control with pipe contact sensors,
it is recommended to arrange the sensors 90° oset from the
heat tracing elements..
CAUTION
Not each of the following procedures are applicable
to every installation. Every aspect of the installation
should be reviewed upon completion.
CAUTION
The sensor should be protected so that no thermal
insulation can be trapped between the sensor and the
heated surface.
CAUTION
When using aluminum tape, be careful not to create
a thermal path between the heating cable and the
temperature sensor.
When assembling temperature sensors, make sure
that there is eective thermal contact between
the surface and the temperature sensor. A suitable
thermally conductive sheath made of temperature-re-
sistant metal foil or another suitable material can be
used for this purpose.
NOTE
i
INSTALLATION OPTIONS
CAUTION
When installing any type of temperature sensor, be
sure to install the sensor cable rmly, protected and
without tension.

9
www.eltherm.com 9 www.eltherm.com
All temperature sensor types on one tube with strapping band
CAUTION
When using this type of fastening, make sure that the
maximum temperatures of the connection line spe-
cied under "TECHNICAL DATA" allow the connection
line to be fastened to the pipe or that the line must be
led out directly.
ELTF-Te.1
ELTF-Te.4
ELTF-Te.41
ELTF-PT.61
ELTF-PT.1
ELTF-PT.3
ELTF-PT.31
ELTF-PT.5
ELTF-PT.33
Strapping band
(e.g. ELB-13V1)

10
www.eltherm.com 10
operating manual
temperature sensors type ELTF
BU 135
Revision 0
Temperature sensor round type with clamps
For fastening sensors in round design, fastening clamps in
one- or two-hole design with screws or welding studs can be
used.
e.g. ELTF-PT.3
Screw M4x12
Toothed washer 4,3
Threaded hole M4
Fastening clamp
Fastening clamp
Contact sensor ELTF-PT.33 with screw M4 Contact sensor ELTF-PT.33 with welding stud and nut M4
ELTF-PT.33
Screw M4x12
Toothed washer 4,3
Threaded hole M4
ELTF-PT.33
Nut M4
Toothed washer 4,3
Welding stud M4x12

11
www.eltherm.com 11 www.eltherm.com
Various options for vessels

12
www.eltherm.com 12
operating manual
temperature sensors type ELTF
BU 135
Revision 0
e.g. ELTF-PT5
aluminum tape (e.g. ELB-06)
glass-fibre tape
(e.g. ELB-02B)
Wire mesh
(e.g. ELB-17.20)
e.g. ELTF-Te.4
Wire for
fastening of the
temperature sensor
under wire mesh

13
www.eltherm.com 13 www.eltherm.com
ELTF-PT.33
Strapping band
(e.g. ELB-13V1 with
turnbuckle ELB-13V2)
ELECTRICAL CONNECTION
The respective wire designations of the different temperature
sensor types can be found under "TECHNICAL DATA".
The temperature sensor is to be connected exclusively to
the intended measuring connections of a suitable electronic
temperature controller. The wiring diagrams can be found
in the respective instructions for the control equipment. The
respective measuring ranges, resolutions and sensor compati-
bility of the various control devices are also described there.
CAUTION
After connecting the temperature sensor, check that
the wiring has been done properly and that the con-
necting cable is not damaged.
Connection example for ELTC-MV2 (terminal X1 and X2)
ELTC-MV2
Input
24VDC
(-) (+)
Digital
Input
(D3)(D2)(D1)(Us)
Output U/I 1
(GND)(U)(I)
Output U/I 2
(GND)(U)(I)
SCADA
ModBus
(12V)(S)(GND)(A)(B)
System
ModBus
(GND)(A)(B)
Input
external U/I 1
(I)(GND)(U)
Input U/I
(I)(GND)(U)
Sensor 2 Sensor 1
X10 X9 X8 X7 X6 X5 X4 X3 X2 X1
2 1 4 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1 3 2 1
5 4 3 2 1
X11 X12 X13 X14 X15
1 2 3 1 2 3 1 2 3 1 2 3
1 2 3 4
N-Terminal
(N)(N)(N)
PE-Terminal
(PE)(PE)(PE)
Power supply input
A + heating cable output
(L(A))(L1)(L1)(L(heca))
Alarm relay
(Com)(NC)(NO)
OT-Relay
(Com)(NC)(NO)
ϑϑ
when using same phase
bridge X13.2 to X13.1
( )
K1 K2 K3
N
PE
L

14
www.eltherm.com 14
operating manual
temperature sensors type ELTF
BU 135
Revision 0
CAUTION
In the case of repair, it is important that the repaired
system retains its UV resistance, mechanical properties
and weather protection as required. If this cannot be
guaranteed, replacement is recommended.
The frequency of an inspection depends on the place
of application, the type of heat-tracing system and the
type of application.
NOTE
i
When used for frost protection, an inspection before
the onset of winter is recommended.
NOTE
i
CAUTION
During repair work on heated system parts, tempera-
ture sensors must be protected against damage. After
completion of the repair work, the temperature sensors
should be checked again.
Damaged temperature sensors should be replaced
immediately.
To ensure the reliable function of the temperature sensor, a
check should be carried out at regular intervals.
To do this, check:
• the functionality of the temperature sensor and, in case of
deviations, carry out a new calibration of the control device.
• check the contacts and terminals to which the tempera-
ture sensor is connected for correct seating and possible
corrosion..
• the temperature sensor and its connection cable for conta-
mination, damage and correct seating.
• the tightness of cable entries.
CAUTION
The settings of the controller/limiter must be checked
during commissioning.
The temperature control device and the temperature
sensor(s) should be calibrated against the factory
settings during commissioning if necessary.
The control should be set to the required temperature
and if necessary recalibrated by the factory settings.
Perform a functional test by adjusting the tempera-
ture settings until it is determined that a heat tracing
element has been turned on by the control.
All measured data should be recorded.
NOTE
i
WARNING
When setting the control, make sure that the sheath
temperature of the heating element does not exceed
the highest limit temperature!
NOTES COMMISSIONING
NOTES MAINTENANCE
MAINTENANCE

15
www.eltherm.com 15 www.eltherm.com
Error Possible cause Troubleshooting
Temperature sensor type ELTF-PT only
Incorrect measured value Heat dissipation error Use thermally conductive wrapping, e.g.
aluminum band type ELB-06
Temperature display too high Deviation through the measuring line Reduce measuring line
Temperature sensor type ELTF-Te only
Only amount of temperature display is
correct
Polarity of the thermocouple at the
connection reversed
Change polarity
Temperature display deviates too much
upwards
The polarity of the compensating line is
reversed at the connection head
Change polarity
Compensating line type does not match
thermocouple type
Replace compensating line
Temperature sensor type ELTF-PT and ELTF-Te
Corrosion of the sensor sleeve/protecti-
ve sleeve
Material not suitable for medium Adapt material to medium
Temperature display too low
Moisture penetration in sensor sleeve Check the protection class of the
temperature sensor and replace it with
another sensor if necessary.
Incorrect measured value Inuence by heat sink or heat source Changing the installation position of the
temperature sensor
Inertial time response
Soiling on the sensor sleeve Cleaning the sensor sleeve
Sensor sleeve diameter too large Use temperature sensor with smaller
diameter
POSSIBLE ERRORS
DOWNLOADS
You can find helpful downloads for this or other products
under the following link:
https://eltherm.com/downloads

eltherm GmbH
Headquarters
Ernst-Heinkel-Straße 6 -10
57299 Burbach. Germany
T.: [phone]
F.: [phone]
[email protected]
www.eltherm.com
86430506500XX Operating Manual Temperature Sensors Type ELTF EN