Knowing the exact value of the radiation temperature is essential for the calibration process. It can be measured by either using a contact thermometer (in combination with the determination of the emissivity) or a transfer standard infrared thermometer. This value can then be used to determine the device constant for an initial calibration of the infrared sensors. In order to conduct a post-calibration by customers or local calibration facilities, the calibration temperature should be near the temperatures which occur at the respective applications.
Optris makes use of a transfer standard radiation thermometer CTlaser-PTB (see figure) to measure the radiation temperature of a reference source. The CTlaser- PTB is based on the IR thermometer optris CTlaser. The CTlaser-PTB needs to be traceable to the international temperature scale from 1990 (ITS-90). Thus, it is calibrated by the PTB (German national metrology institute) on a regular basis. ITS-90 is a very good approximation of thermodynamic temperature. It is based on 17 well-reproducible fixed values such as melting points of highly pure metals. Within the framework of ITS-90 the CTlaser-PTB is compared to national temperature standards from the PTB. This comparison within a closed chain of comparative measurements with a known uncertainty in measurement takes place on a regular basis.
Based on the CTlaser-PTB, Optris produces the CTlaser- DCI as a high-precision reference IR thermometer for its customers. The DCI units are produced with pre-selected components supporting high stability of measurement. In combination with a dedicated calibration at several calibration points the CTlaser-DCI achieves a higher accuracy than units from series production.
The optics of an IR thermometer is described by the distance-to-spot-ratio (D:S). Depending on the quality of the optics a certain amount of radiation is also received from sources outside the specified measurement spot. The maximum value here equals the radiation emitted by a hemispheric radiant source. The respective signal change in correlation with a resize of the radiation source is described by the Size-of-source effect (SSE).
As a result of this correlation all manufacturers of IR thermometers use accurately defined geometries for the calibration of their units; meaning depending on the aperture of the radiation source (A) a distance (a) between the IR thermometer and the reference source is defined. Thus, the value specified in datasheets and technical documentation as a measurement field is, in general, a certain defined percentage of this radiation maximum – values of 90 % or 95 % are common.
The INSPECTA FFT Acoustic Leak Detection System has been developed to detect steam tube leaks in power station boilers. Using Fast Fourier Transform (FFT) technology, the system continually monitors and analyses sounds in the combustion chamber, using up to 32, audio field sensors with head amplifiers placed around the boiler. A detected leak is then graphically displayed on the screen by Spectrum and Alarm Bar graphs providing an overview of the severity of the leak. The monitor displays are digitally averaged to allow for any spurious sounds which might otherwise distort the signals.
The quick exposure time of only 90 μs makes the high speed IR thermometer CT 4M the perfect sensor for measuring fast processes. Due to its short measuring wavelength and a temperature range from 0°C to 500 °C, the pyrometer optris CT 4M, is suitable for measurements of metals, metal oxides, ceramics or materials with unknown or changing emissivity.
The electronics box of the measuring device allows a flexible terminal device through selectable analog outputs as well as various optional digital interfaces.
The Model CSP is a multi-column, low proile, stainless steel compression load cell. The unique four column design offers excellent insensitivity to eccentric loads while maintaining accuracy.
This product is suitable for use in road and rail weighbridges and process weighing applications.
The fully leak-tested welded construction, advanced cable entry, and built-in surge protection tubes ensure that this product can be used successfully in demanding environments.
This product meets the stringent Weights and Measures requirements throughout Europe.
The Model ACB is a high performance stainless steel beam type load cell. An integral mounting step removes the need for spacer plates and ensures optimum “bolt down” conditions.
This product is suitable for small and medium platform scales, hybrid scales, pallet weighers, and process weighing.
The fully welded construction and the cable entry ensure that this product can be used successfully in demanding environments found in the food, chemical, and allied process industries.
A polycarbonate Junction box for 3 | 4 load cells
The new compact infrared camera optris Xi 410 combines all the benefits of infrared cameras and infrared thermometers.
The Optris Xi 410 has a fast Ethernet interface and can be powered by PoE. This allows for a simple installation, even if the distance from the PC is large. The built-in hot spot finder function can be used to reliably measure moving objects without having to reposition the camera. If the network connection is interrupted or if the connected PC has a problem, the camera immediately switches to the autonomous stand-alone mode which ensures a continuous measurement and alarm. Thus the reliability of problem detection (typically exceeding a threshold in the context of monitoring a fire outbreak) is maintained. Thanks to this unique feature, the Optris Xi 410 is ideal for all safety applications related to fire prevention, detection of critical hot spots, monitoring of industrial equipment and storage of all kinds.
The Optris Xi 410 incorporates a motorized remote focus, controlled by the free PIX Connect software. The resolution of the camera is 384 x 240 pixels with a frame rate of 25 Hz.
Selet has designed a new series of capacitive sensors with more compact dimensions than the traditional sensors on the market: 40mm, in total, of which 33 mm belonging to the threaded part for the flush version, and 50 mm, in total, for the non-flush version.
New constructive technology has allowed the creation of such products.
The sensitivity adjustment does not occur through a trimmer but using a teach-switch placed at the back of the sensor.
The NGR is a level sensor that uses TDR technology (time domain reflectometry) and thus can be used in oil- and waterbased liquids without calibration. The NGR’s guided radar uses time-offlight technology to measure electromagnetic pulses.
The time difference between the sent pulse and the reflected pulse is used to calculate the level, both as a continuous value (analogue output) and a freely positionable switching point (switching output). Due to its flexible probe that can be changed or cut, it is possible to integrate the sensor quickly into any application. The NGR can work in deposit-forming and foaming liquids. The sensor’s intuitive setup uses four buttons and a display to ensure quick and easy adaptation to the application.
Chem series sensors and SenixVIEW software put the power of ultrasonics in your hands. You can quickly adjust, optimize, save, and clone your applications quickly without calibration!
The CHEM 12 is housed in a rugged, chemically inert PVDF sealed housing for long life. A new shorter design and smaller diameter transducer allows for easier installation in tight locations, and measurements closer to the top of a tank. The CHEM 12 also has an improved rugged strain relief design.
Applications include pump control, bulk inventory, batch processing, water management and high/low-level alarms.
The Load cell 9363 is a multipurpose stainless steel S-type load cell which can be used in tension or compression. This product is suitable for a wide range of hybrid scales, overhead track scales, belt scales, and process weighing applications. Reliable sealing is ensured by the proprietary TRANSEAL potting compound and additional mechanical protection of the strain gage area. This product meets the stringent Weights and Measures requirements throughout Europe and the USA.
The pyrometer optris CSmicro LT LTH is equipped with an innovative, miniaturized stainless steel measuring head, optimally suited for installation in limited spaces. Its small size and its temperature resistance up to 180°C make the mechanic integration of the measuring head especially cost-efficient.
The intelligent LED display works optionally as alarm signal, target support, self-diagnosis or temperature-code display. The placement of electronic components within the cable allows for a high temperature resistance of the measuring head.
New: The CSmicro series can now be operated via the new IR mobile App (Android). The App enables to monitor and analyze infrared temperature measurements on a connected smartphone or tablet.
The pyrometer optris CSmicro LT HS sets new performance standards in the measurement of slightest temperature differences of 0.025 K. Due to the stainless steel measuring head, it is perfectly suited for installation in especially limited and cramped spaces.
The compact infrared thermometer measures precisely in a temperature range from -20°C to 150°C and is equipped with an intelligent LED display, utilizable as alarm signalization, target support, self-diagnosis or temperature-code display.
The infrared thermometer optris CSlaser LT consists of a robust stainless steel sensor with integrated electronics, enabling easy integration into your system.
Its innovative double laser sight allows for an exact marking of measurement spots even on smallest objects. A variety of optics enables adaptation for a broad range of different applications. Additionally, the IR thermometer offers a standardized two-wire interface for a reliable transfer of measurement data and easy integration into a Siemens SPS.
The infrared thermometer optris CSlaser hs LT allows for measuring of the slightest temperature differences from 0.025°C on, which plays an important role for e.g. continual surveillance of product homogeneities.
In addition, its double laser sight ensures an exact marking of measuring fields and a variety of scopes offers high adaptability with various applications.
The infrared thermometer optris CSlaser 2M has been designed specifically for exact temperature measurement of metallic surfaces. Its short measuring wavelength allows not only for precise measurement of metal temperatures but metal oxides and ceramics as well.
The IR thermometer is equipped with an innovative double laser sight for precise marking of the measuring spot. A variety of scopes ensures high adaptability with various applications.
The infrared thermometer optris CSlaser G5 HF has been specifically designed for temperature measurement of flat glass, container glass, lightbulbs, vehicle glass, and solar cells.
Its standardized two-wire interface provides a reliable measuring data transmission and allows for an easy integration of the temperature sensors into a Siemens PLC. The IR thermometer is additionally equipped with an innovative double laser visor for a precise marking of the measuring spot. A variety of optics ensures high adaptability with diverse applications.
The video pyrometer optris CSvideo 2M, with its integrated video sighting allows for an additional visor assistance. Combined with the innovative and patented crosshair laser, it offers a reliable and precise measuring field adjustment in hard-to-reach areas and in cases of measuring objects being so hot the laser visor is not visible anymore.
The infrared video thermometer optris CSvideo 3M is perfectly suited for low-temperature measurement of metals and composite materials starting from 50 °C. Parallel use of the video module and the laser sight allow for an easy and exact measuring field marking even if the measuring object is located in hard-to-access areas.
The new Optris video pyrometers CTvideo 1M / 2M allow a parallel use of video and crosshair laser aiming for an optimal measuring field adjustment even in processes with limited access. It reliably measures temperatures of metals or ceramics and, due to its short measuring wavelength, reduces measuring errors of surfaces with low or unknown emissivity.
The infrared video thermometer optris CTvideo 3M is perfectly suited for low-temperature measurement of metals and composite materials starting from 50°C. Parallel use of the video module and the laser sight allow for an easy and exact measuring field marking even if the measuring object is located in hard-to-access areas
Due to its short measuring wavelength the ratio pyrometer optris CTratio 1M is especially suited for measurement of extremely high metal temperatures and the very short response time allows for surveillance of very fast processes.
The ratio pyrometer is largely resistant against dust, steam and dirty observation windows. This allows for an accurate measurement in cases of window soiling of up to 90 percent. The pyrometer additionally measures reliably in cases where the measuring object only covers 5 percent of the measuring point or moves very fast.
Rugged, electrically isolated sensing head and fiber optic cable for ambient temperatures up to 315 °C without cooling.
Due to its short measuring wavelength the ratio pyrometer optris CTratio 2M is especially suited for measurement of extremely high metal temperatures and its very short response time allows for surveillance of very fast processes.
Rugged, electrically isolated sensing head and fiber optic cable for ambient temperatures up to 315 °C without cooling
The IR thermometer optris CTlaser 1M / 2M allows precise and quick measuring of high temperatures of metal surfaces. The short measuring wavelengths are not only capable of measuring metal temperatures but also allow for measurement of metal oxides and ceramics.
The robust premium stainless steel measuring head of the CTlaser pyrometer additionally offers exact marking of measuring spots in every distance due to its innovative double laser sight.