Dynisco DYMT User manual

Operating Manual
Melt Temperature Sensor
DYMT
Dynisco Europe GmbH Tel: [phone]
Wannenäckerstr. 24 Fax:[phone]
74078 Heilbronn Email: [e-mail]
Germany

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1. Contents
Page
1 Contents 3
2 Technical data 4
3 Instructions 6
3.1 Product description 6
3.2 General instructions 6
3.3 Safety instructions 7
3.3.1 Hazard points 7
3.3.2 Disposal 7
4 Assembly / installation / disassembly 8
4.1 Storage 8
4.2 Packaging and transport 8
4.3 Installatoin instructions 8
4.4 Assembly / commissioning 8
4.5 Disassembly 11
4.6 Safety features 11
4.7 Value tables 11
4.7.1 Base values Pt 100 in accordance w. DIN EN 60751 11
4.7.2 Base values of the thermal voltages in mV 12
5 Manufacturer's Declarations 13
5.1 Resistance thermometer 13
5.2 Type "J" thermocouple 14
5.3 Type "K" thermocouple 15

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2. Technical data
Thread 1/2”-20 UNF, M18 x 1.5 or M14 x 1.5
Stem length 152 mm standard, other lengths on request
Blade length 2.5 - 3.0 mm, as requested by customer
Material in contact
with the medium 15-5 PH SST mat. no. 1.4545
Coatings on request
Max. medium temp.350°C
Electrical data:
Thermocouple J, K, L, other types on request
RTD can be connected as 2-, 3-, or 4-wire
Connector IEC connector for thermocouple
DIN connector for Pt100 element
Line outlet Straight or angled 90°
Cable length 75mm, other lengths on request
Use in Ex area is possible with suitable supply
and analysis devices.
Dimensions:

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Order specifications:

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3. Instructions
3.1 Product description
Prescribed use
Melt temperature sensors from Dynisco have been especially developed for melt and
core temperature detection in extrusion processes in accordance with customer-
specific and industry-specific solutions.
These sensor designs are basically considered to be "medium contacting"
temperature sensors.
Due to varying customer requirements and product requirements, today we have a
broad spectrum of melt temperature sensors in virtually every conceivable design.
3.2 General instructions
Read this operating manual prior to commissioning the device. Keep this operating
manual in a location where it is accessible to all users at any time. Long service life
and problem-free operation are only possible if the device is handled properly.
Attention! Incorrect installation/assembly or connection can result in
impairment of proper function, or damage to the subsequent process.
Consequently safety fixtures that are independent of the device must be
present and only specialists should perform the installation.
If, in spite of these precautions, difficulties should occur when commissioning, then
we request that you not perform any impermissible operations on the device. Such
actions place your guarantee claim in jeopardy! Please contact your responsible
sales office or your company representative.
We constantly strive to improve our operating instructions. Please support us in this
regard. We would appreciate your suggestions.

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3.3 Safety instructions
3.3.1 Hazards
Attention!
A burn hazard exists in the entire area of the heated extruder. There is a hazard
of hot medium escaping under high pressure through improper assembly or
disassembly of the melt temperature sensor when charging with pressure.
3.3.2 Disposal
The manufacturer can ensure proper and environmentally friendly disposal. Please
contact your responsible sales office or your company representative.

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4. Assembly / installation / disassembly
4.1 Storage
Storage temperature range: -40°C to +70°C, rel. humidity <95%
4.2 Packaging and transport
In order to achieve optimal measurement results with our sensors, ensure the
protective cap remains intact to protect the sensor tip.
Any damage to the sensor can result in incorrect measurements or failure, in addition
defects can occur on your machines due to damaged melt temperature sensors.
4.3 Installation instructions
Observe the applicable national regulations when selecting line materials, and for the
electrical connection of the device.
The electrical connection should only be executed by specialized personnel.
The devices that bear the CE mark satisfy the requirements of the EU Directive
89/336/EEC "Electromagnetic Compatibility" and the harmonized European
standards that are listed there. The EU Declarations of Conformity are available for
the responsible authorities in accordance with the aforementioned EU Directive,
Article 10.
4.4 Assembly / commissioning
Remove the sensor from the packaging and inspect for transport damage (leave the
protective cap in place for all further transport!).
Test for function using an ohm meter, a resistance of 1…20 ohm must be displayed
(line dependent) when connecting the thermal line.
For resistance thermometers a value of approximately 108 ohm (+/-5 ohm) must be
displayed here.
Verify the dimensions/specification: diameter, sealing area, sword length, thread, and
line length
When assembling the melt temperature sensor ensure that the sensor mounting hole
corresponds to the dimensions listed on page 10. The fit precision can be checked
using a test bolt. Prior to installation heat-resistant grease must be applied to the
sensor thread. If the machine part with the receptacle bore is still at production
temperature then a warm-up time for the sensor must be taken into consideration.
Due to thermal expansion the sensor would be firmly seated. When screwing into
place ensure that the sensor is not tilted or does not fall into the hole.
In the final assembly there should be as little cavitation (material residues, material
contaminations etc.) as possible, the sensor point should still project into the machine
interior. In addition the thread should demonstrate freedom of movement, be free of
product remnants, and it should be absolutely clean.

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The length of the sensor blade projecting into the melt should always be selected in
such a manner that the measuring point is positioned one third of the channel
diameter from the inner wall of the channel.
When screwing into place pay attention to the direction arrow on the hexagon
(SW14). This arrow indicates the material flow direction and should never be
misaligned (sword break for sensors with sword design).
Always align the sensor in the direction indicated by the arrow and fix in place with an
SW19 (open end wrench) (see illustration below). Tightening torque is approximately
50 Nm
Connect the connecting line to the specified connection terminal, or connect via plug
connector.
Check the heat-up phase.
Attention! Do not exceed the maximum specified temperature!

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Mounting holes:
Melt temperature sensor with ½-20 UNF thread
Melt temperature sensor with M18 x 1.5 thread
4.5 Disassembly
-To remove after operation, the machine must be empty, however it still should be
tempered.
-Product remnants must be removed when hot without the use of sharp-edged
tools. Any mechanical processing can result in changed operating characteristics.