Testo Sensor GmbH
Über uns
Testo Sensor GmbH was spun off in 2010 as a subsidiary of Testo SE & Co. KGaA.
As your partner for temperature probes, we specialise in the development and manufacture of application-specific temperature probes, temperature probe assemblies and complete system solutions consisting of probe, mounting and the required qualification stress tests.
Let us convince you of our competence. We focus on what we know perfectly - temperature measurement in our core industries: in heating systems, in heat meters, in the gastronomy sector (e.g. coffee machines) as well as in machine and apparatus construction. In these areas, we would like to be your leading supplier of temperature probes and convince you of our value in each of your projects. For each field of application in our core industry, we can draw on a broad portfolio of different designs of temperature probes, whose design has been specially developed for the respective application and measuring task and fully qualified on our own inspection and test stands.
We always offer you the complete package: the specifically developed technical solution, zero-defect quality (< 400ppm field failure rate), 100% delivery reliability integrated into your logistics processes and all this at a performance-based, competitive price.
New: Temperature probe for heat meters
An important component of heat meters are the precise, calibratable temperature probes according to DIN EN1434 for determining the temperature difference at the flow and return of the heating system.
We produce these probes according to your specific requirements, on request also paired with all relevant standards and guidelines for heat meters PTB-certified.
We measure your probes on our in-house, highly automated pairing test bench and ensure that you receive perfect twin temperature probes for the inlet and return in sets.
Our service package for you
We are happy to be your partner and specialist for application-specific temperature probes. You will always have fixed and competent contact persons - for your purchasing department, for your developers and technicians, for your quality managers and for your dispatchers and logisticians.
Specification
Together with you, we work out which specific requirements your temperature probe must fulfil for your application in the long term. In our test bench laboratory, we carry out elaborate stress tests on the temperature probes using time-lapse techniques and as a result ensure that your requirements are demonstrably and permanently met.
Design
Our engineers develop and design your temperature sensor type according to your specifications and always with the target application in mind. In addition, every newly developed sensor type is subjected to intensive in-house stress tests before it is released for series production by the development and quality management departments.
Sample and prototype construction
We manufacture sample probes, prototypes and field test probes at our site in Lenzkirch by hand and with the aid of pre-series tools. These sample probes can be pre-qualified in our laboratory so that you can already use functional samples in your field tests and ensure that you receive meaningful field test results.
Qualification
The probes that are ready for series production are subjected to the necessary stress tests, endurance tests and functional tests on our test stands in our in-house laboratory and, if necessary, at our accredited partners, and corresponding test reports are prepared for your quality management and purchasing department. Through our active participation in various committees, we ensure that we are always up to date with regard to the requirements to be fulfilled.
In our laboratory, we can also carry out complex and very comprehensive qualifications for you, such as the qualification in endurance stress tests, which takes about two years, to prove the suitability of the temperature probes for use in heat pump applications. These are not only exposed to changing temperatures in our temperature baths, but also have to withstand vibrations and the influence of aggressive media such as salt spray reliably and without damage - maintenance-free for up to 15 years in the field within the specification.
For the temperature probes in conjunction with heat meters, we have developed our own highly automated pairing test stand that meets the highest standards specified by the PTB (Physikalisch Technische Bundesanstalt) and has been approved and certified accordingly. This ensures that we can pair these specially designed probes with high accuracy and efficiently carry out other very precise temperature measurements.
Series production
In series production, every probe produced is subjected to a meaningful 100% final function test. We manufacture your probes in our production facility in Shenzhen or in Lenzkirch here in Germany.
Our manufacturing philosophy
- Semi-automated, modular series production forms the necessary basis for the economical manufacture of small and large quantities in zero-defect quality.
- By means of movable production modules, such as the automatic soldering machines, potting and dosing machines or also the sensor positioning devices, our production lines can be converted and adapted to technically modified probes at lightning speed and at low cost.
- Fluctuations in demand of +/-20% for each sensor type can be cushioned as standard and without placing a particular burden on production.
- The production lines are set up in the one-piece flow production process methodology. This ensures that each employee always produces the entire probe. By subtracting or adding more employees, the capacity and thus the output of each line can be quickly adjusted to any change in demand.
- During production, precisely defined In-Process-Quality-Control (IPQC) checks are carried out regularly. This ensures that each production process operates stably, within the permitted tolerance limits.
- A complete, meaningful and documented 100% final inspection ensures the quality standard is 100% again before the temperature probes are packaged and shipped.
Logistics
For us, 100% delivery reliability is not just an empty phrase, but a claim that we actually ensure by means of appropriate buffer stocks, even if logistics processes can be difficult in turbulent times. For us, on-time delivery is just as important as the perfect design of your temperature probe or series production in 0-defect quality.
We adapt our logistics according to your wishes, requirements and your favoured logistics model. Our aim is to ensure 100% delivery reliability, combined with cost-efficient processes on both sides, if necessary by means of a data link to your ERP system. Our logistics contract partners operate globally and accompany our goods from Hong Kong. Buffer storage areas in China and Germany ensure permanent delivery capability.
With an average range of approx. 3 months in buffer storage, we can easily cover demand fluctuations of +/- 20%. This leaves enough time for the production of new probes and refilling.
Sustainability is also a concern for us. So we work out solutions together with our customers to reduce shipping costs, e.g. by optimising the placement of pallets. We are also happy to take over the commissioning of probes and accessories for you and thus become your system supplier. And in our own projects, we examine which of the packaging materials used today can be reduced or how to switch to more environmentally friendly material.
Unsere Produktgruppen
Unsere Anwendungsbereiche / Lösungen
Mehr über uns
Applikationsspezifische Temperaturfühler
Downloads
Dokumente
Keywords
- Temperaturfühler
- Temperature probes
- Temperature sensors
- Temperatursensoren
- PT1000
- NTC Thermistor
- Temperaturfühler für Wärmemengenzähler
- Temperature probe for heat meters
- Hersteller Temperaturfühler
- Manufacturer temperature probe
- Temperature probe for heat pumps
- Kundenspezifische Temperaturfühler
- Customer-specific temperature probes
- Qualifizierung & Umweltsimulationen
- Qualification & environmental simulations
Unsere Produkte
Temperature probes
Temperature probes from Testo Sensor GmbH
Testo Sensor GmbH is your partner for the development, qualification and manufacture of application-specific OEM temperature probes, temperature probe assemblies and complete system solutions, consisting of probe, mounting and the required qualification stress tests.
We focus on what we know perfectly - temperature measurement in our core industries: in heating systems, in heat meters, in the gastronomy sector (e.g. coffee machines) and in machine and apparatus construction. In these areas, we would like to be your leading supplier of temperature probes as an OEM (Original Equipment Manufacturer) and convince you of our value in each of your projects. For every field of application in our core industry, we can draw on a broad portfolio of different designs of temperature probes, whose design has been specially developed for the respective application and measuring task and fully qualified on our own test stands.
We always offer you the complete package: the specifically developed technical solution, zero-defect quality (< 400ppm field failure rate), 100% delivery reliability integrated into your logistics processes and all this at a performance-based, competitive price. We develop, qualify and manufacture the temperature probes according to your specification. We ensure the required functionality and process stability with the help of design and process FMEAs.
Our probes are manufactured according to the highest quality standards and the current state of the art. The maintenance-free temperature probes thus work safely and precisely and have a long service life. To this end, we work with you to draw up a comprehensive specification that takes into account the following factors, among others:
- In which medium is the measurement to be made?
- How is the measurement to be made (penetration measurement, surface measurement, etc.)?
- How is the temperature probe to be integrated into the process, i.e. which process connection is required?
- In which temperature range should the measurement take place?
- How fast does the measurement have to be?
- Are there any other influencing factors, such as steam, vibrations, etc., which affect the
temperature probe?
We will offer you a suitable design for your temperature probe to match these specifications. We do not only consider the probe itself, but also the necessary mounting or the combination with other measured variables in an assembly.
We offer the following designs:
- Outdoor probe
- Room probe
- Radiation probe
- Screw-in temperature probe
- Cable probe
- Housing Immersion probe
- Surface probe
- Contact probe
- Duct probe
- Average value probe
- Bayonet probe
- Insertion sensors
We can install all common resistance-based measuring elements such as NTCs, Pt sensors, Ni sensors, KTY sensors and others as well as thermocouples.
We manufacture the sleeves from stainless steel, brass or ceramic according to your requirements.
As a system manufacturer, you will not only receive the appropriate temperature probe and the corresponding quality from us, but also suitable accessories such as fasteners. We work closely with various partners and can therefore offer you a coherent overall concept.
For the mounting of your probes, we can advise you on the following types of mounting:
- Clip-on probes
- Screw-in probes
- Probe for plugging in
- Probes with bayonet locks
- Probe for clamping in
We offer the following accessories:
- Connection and extension cables
- Connectors
- Compression fittings
- Immersion sleeves
- Transmitter
- Bayonet locks
We manufacture (OEM) temperature probes for these applications:
Temperature probes for heat meters
- Temperature probes for direct installation
- Temperature probes for universal installation
Temperature probes for heating, air-conditioning and refrigeration technology
- Outdoor temperature probe
- Room temperature probe
- Temperature probe for underfloor heating systems
- Temperature probe for boilers
- Temperature probe for air-conditioning systems
- Temperature probe for buffer tank
- Temperature probe for solar systems
- Temperature probe for heat pumps
- Exhaust gas temperature sensor
- Pipe contact probe
- Contact temperature sensor
- Clip-on sensors
Temperature probes for machine and apparatus construction
- Bayonet temperature sensor
- High-temperature sensors
- Temperature probes and thermocouples for inline temperature measurement
- Temperature probes and thermocouples for surface temperature measurement
- Process temperature sensors
Temperature probes for white goods
- Penetration temperature probes
- Temperature probes for instantaneous water heaters
- Temperature probes for refrigerators
- Temperature probe for dishwashers
- Temperature probe for coffee machines
- Temperature probe for white goods
- Temperature probe for tumble dryers
- Temperature probes for washing machines
In our webshop we also offer many designs from our standard portfolio and the matching accessories such as cables, compression fittings, immersion sleeves, bayonet caps, connectors and transmitters. We are constantly adding to the range.
Smart Mounting for temperature probes
Temperaturfühler und Befestigungen von der Testo Sensor GmbH
Die Testo Sensor GmbH ist als Systemanbieter Ihr zuverlässiger Partner, wenn Sie nicht nur einen passenden Temperaturfühler für Ihre Applikation benötigen, sondern auch jemanden, der Sie beraten kann, wie dieser Fühler sicher in den Messprozess eingebracht werden kann.
Als Hersteller sind wir auf die Entwicklung, Qualifizierung und Herstellung applikationsspezifischer OEM-Temperaturfühler, Temperaturfühler-Baugruppen und kompletter Systemlösungen spezialisiert.
Unsere Temperaturfühler und Messsysteme werden nach höchsten Qualitätsansprüchen und dem aktuellen Stand der Technik gefertigt. Dafür erarbeiten wir gemeinsam mit Ihnen eine umfassende Spezifikation:
- In welchem Medium soll gemessen werden?
- Wie soll gemessen werden (Einstechmessung, Oberflächenmessung …)?
- Wie soll der Temperaturfühler in den Prozess eingebacht werden?
- In welchem Temperaturbereich soll die Messung stattfinden?
- Wie schnell muss die Messung erfolgen?
- Gibt es ggf. weitere Einflussfaktoren wie bspw. Dampf, Rütteln zu berücksichtigen?
Passend zu dieser Spezifikation werden wir Ihnen eine passende Bauform für Ihren Temperaturfühler anbieten. Dabei beachten wir nicht nur den Fühler an sich, sondern ggf. auch eine notwendige Befestigung oder die Kombination mit anderen Messgrößen in einer Baugruppe.
Für die Befestigung der Fühler bieten wir die folgenden Befestigungsmöglichkeiten:
- Fühler zum Klippen
- Fühler zum Einschrauben
- Fühler zum Einstecken
- Fühler mit Bajonettverschluss
- Fühler zum Einklemmen
Fühler zum Klippen
Fühler zum Klippen können eingesetzt werden, wenn die Messung als Oberflächenmessung z.B. an Rohren durchgeführt werden soll. Mit dem Clip kann der Fühler schnell, einfach und sicher an der Messstelle angebracht werden und das Messelement wird dadurch optimal zur Messstelle angebunden.
Der Clip kann ganz nach Ihren Spezifikationen gestaltet werden. Wir bieten Rohrclips zur Befestigung von Kabelfühlern direkt an Rohr und auch Clipfühler mit eingebautem Messelement.
Fühler zum Einschrauben
Einschraubverbindungen gehören zu den sichersten und standfestesten Verbindungen, die eingesetzt werden können. Dabei kann der Fühler entweder direkt in das Messmedium oder in eine entsprechende Tauchhülse eingeschraubt werden. Der Fühler sitzt damit sicher und druckfest an der Messstelle. Die Gewindegröße kann ebenso wie die Einbaulänge und der Hülsendurchmesser an ihre Bedürfnisse angepasst werden.
Neben den klassischen Schraubverbindungen bieten wir gemeinsam mit unserem Partner AVS Roemer einen neuartigen Einschraubverschluss an. Damit können die Vorteile eines klassischen Einschraubgewindes mit der schnellen und einfachen Montage einer Klemmverschraubung kombiniert werden.
Gerne zeigen wir Ihnen die entsprechenden Muster bei uns am Stand.
Fühler zum Einstecken
Unsere Einsteckfühler werden einfach an die dafür vorgesehene Stelle eingesteckt. Die Hülsen können aus verschiedenen Materialien wie Edelstahl, Messing oder Keramik und ggf. mit Dichtring gefertigt werden. Die Form kann ebenso individuell gestaltet werden wie der Hülsendurchmesser und die Einbaulänge. Als elektrischer Anschluss stehen neben verschiedenen Steckerformen auch Anschlussleitungen aus Silikon, Glasseide, PFA oder PVC als Zwei-, Drei- oder Vierleiterausführung zur Auswahl.
Fühler mit Bajonettverschluss
Bajonettverschlüsse haben den Vorteil, dass man die Fühler fehlerfrei und sicher leicht und v.a. sehr platzsparend einbauen kann. Dabei sind sie je nach verwendetem Material ähnlich standfest wie Einschraubverbindungen.
Neben den klassischen Bajonettfühlern mit Gewinde bieten wir auch Einsteckfühler mit Bajonettanschluss an. Wie bei unseren anderen Fühlern können wir Hülse und Anschlussleitung oder Stecker entsprechend ihrer Spezifiaktion individualisien.
Fühler zum Einklemmen
Unsere Temperaturfühler zum Einklemmen sind mit Spannvorrichtungen wie Spannfedern oder Spannbögen ausgestattet und werden damit sicher und zielgenau an der Messstelle eingebracht werden. Dabei werden sie mit ausreichend Anpressdruck an der Position gehalten.
Egal welche Befestigungsart Sie auch wählen, auf eins können Sie sich verlassen: Wir bieten Ihnen immer das Gesamtpaket: die spezifisch entwickelte technische Lösung, eine Null-Fehler-Qualität (< 400ppm Feldausfallrate), eine 100%-Liefertreue integriert in Ihre Logistikprozesse und das zu einem leistungsgerechten, wettbewerbsfähigen Preis. Wir entwickeln, qualifizieren und fertigen die Temperaturfühler gemäß Ihrer Spezifikation. Die geforderte Funktionalität und Prozessstabilität sichern wir mithilfe von Design- und Prozess-FMEA’s ab.
Temperature probes for heat pumps
The most demanding applications for temperature probes in the heating industry are in heat pump applications.
Large temperature ranges, fast temperature changes, ice, rain, sun and high humidity alternate, so that the temperature probes are exposed to extreme environmental influences.
A specific sensor design optimised for each application is therefore necessary to be able to cover the applications in heat pump heating systems really reliably and with long-term stability.
Testo Sensor GmbH develops, qualifies and manufactures temperature probes for heat pumps in very large quantities. This is what distinguishes our probes:
Robust sensor design: resistant to humidity, ice, water, temperature changes and vibration.
As a result, the probe operates safely, reliably and with long-term stability within the specification for 15 years.
Sensor types systematically qualified for heat pump applications - demonstrable
A highly optimised design, extensive qualification programmes and semi-automated series production with maximum reproducibility reliably ensure compliance with the specification and the required 15-year service life.
We advise you not only on your temperature probe, but also on suitable mounting systems for the application.
Our heat pump sensors undergo the following qualifications
Proof of long-term stability under temperature changes: Temperature probes are exposed to harsh environmental conditions, such as changing temperatures and high humidity, and should still function reliably in the field for 15 years or more.
Verification of long-term stability under heat and humidity: Strongly fluctuating ambient conditions mean immense stress for the temperature probe and the design must be correspondingly robust and qualified.
Proof of vibration resistance: Depending on the application, compressors and fans generate strong vibrations that are transmitted to components and cables. Therefore, the temperature probes used must be vibration-resistant (20g).
Proof of corrosion resistance (in salt spray mist): Temperature probes are also used in coastal regions. Therefore, the temperature probes must be able to withstand salty air for a lifetime of 15 years.
Proof of compliance with the specification (response times): Depending on the application, short response times are sometimes necessary because they ensure efficient control of the system. Our sensor design is optimised for this and we prove the response time.
Proof of compliance with the specification(pull-out force): The robust design ensures the necessary cable pull-out strength, even with vibration and higher temperatures.
Effective quality assurance in series production, consisting of 100% final inspection and additional spot checks, ensure our 0-defect quality.
Your probe could look like this:
Possible measuring elements: PT100, PT1000, PT500, PT2000, Ni500, Ni1000, Ni1000TK5000,
NTC1.8kOhm, NTC5kOhm, NTC10kOhm, NTC20kOhm
Possible circuit type (depending on measuring element): 2-wire, 3-wire, 4-wire
Protection sleeve: Diameter Ø: 3-6 mm, Length: 30- 200 mm, Sleeve shape (tip): flat or round, Material: Stainless steel 316L (copper, brass on customer request) with pressure spring or pressure bend, if necessary multiple rolled
Protection class: IP68, moisture and dew point resistant
Connection cable: Material: FEP / silicone, Color: black, other colours are possible.
Electrical connection / plug: insulated wire end sleeves, plugs possible according to specification
Suitable accessories: clamps for fixing to the pipe, heat conductive paste
Certifications and standards: Standards: DIN EN 61326-1:2013 | DIN EN 50581:2013, guidelines: RoHS 2011/65/EU, certificates: proof of suitability for heat pump applications
Temperature probes for heat meaters
Temperature probes for heat meter
As a manufacturer, Testo Sensor GmbH produces temperature probes for heat and cold meters in accordance with specific customer specifications and, as an active member of the standards committee, also keeps an eye on all standards and guidelines for proper approval.
Consistently rising energy costs and strict legal requirements demand highly accurate billing of the thermal energy used in heating or cooling systems.
One important component of heat and cold meters used for this purpose are the precise temperature probes for determining the temperature difference at the flow and return of the heating or cooling system.
Temperature probes for measuring the thermal energy, which are permissible for the demanding use in billing systems, are also available from us ready paired on request.
This is what distinguishes our temperature probes for heat metersOur certifications & standards
- EU type examination certificate according to module B of the guideline 2014/32/EU (MID) for heat meters
- Type examination certificate according to module B of the Measuring and Calibration Ordinance (MessEV) of 11.12.2014 for cold meters
- Recognised production quality assurance systems according to Module D of Directive 2014/32/EU (MID)
- Recognised quality assurance systems for production in accordance with Module D of the Ordinance on Measurement and Verification (MessEV) of 1.12.2014
- Suitability test according to the list of pronounced toleration of stockpile crushes
- DIN EN 61326-1:2013
- DIN EN IEC 63000:2019-05
We can produce these temperature probes for heat meters for you
Temperature probe for direct installation
- For direct installation
- Available with or without screw connection
- Fast response probe design
- Low minimum immersion depth required
- All probes are approved according to MID and MessEV
- Custom specific configuration possible: various sensors, different cables, Diameter 5 / 5.2 or 6 mm , with or without probe pairing
Temperature probe for universal use
Universal probe design: use for direct installation or use in immersion sleeve
- Universal mounting length via locking sleeves
- Fast response probe design
- Low minimum immersion depth required
- Probe is on the PTB's toleration list
- Available as spare part set, including pairing & accessories
- All probes are approved according to MID and MessEV
- Custom specific configuration possible: various sensors, different cables, Diameter 5 / 5.2 or 6 mm , with or without probe pairing
Temperature probe pairing according to DIN 1434
We provide you the probes and on request also the pairing
Special guidelines and strict quality criteria apply to temperature probes in heat and cold meters. This makes the manufacturing process and especially the pairing process very complex. You can find a video with a small insight into our fully automated pairing process on our homepage.
We will show you how we have managed to make the process both effective and cost-efficient while still complying with all standards and specifications.
This ensures that we can not only meet the extremely high requirements of the PTB, but also significantly increase the sensor throughput per hour.
Our offer for you
- Reliable and versed development partner for new projects
- Quality and functionality that clearly exceeds the legal framework
- With us you have a direct contact person right down to the specialist departments (technician talks to technician)
- Our probes are approved, qualified and ready paired on request
- We have specifically optimised our temperature probes for use in conjunction with heat and cold meters
Unsere Ansprechpersonen
Patrick Hermann
Marketing/Advertising
Head of Department
