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 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.
The Optris PI 450i G7/ PI 640 G7 infrared cameras are the first industry-specific thermal imaging cameras in the PI series. Designed specially for the glass industry, this camera measures in only one spectral range.
The IR camera is used as a line-scan camera in the field of sheet glass production and offers various possibilities for documenting and controlling the process.
This compact, high-performance infra-red camera for the glass industry is available with interchangeable lenses and industrial accessories. The comprehensive license-free software package “Optris PIX Connect” is included in the price.
The infrared pyrometer optris CS LT is perfectly suited for temperature measurement in small and narrow environments. The robust measuring heads have been developed for use in temperature ranges from -50°C to 1,030°C and can be employed in ambient temperatures of up to 80°C without additional cooling.
The inexpensive IR pyrometers are perfectly suited for OEM solutions. They also work ideally for multiple employments of infrared measurement points.
The pyrometer optris CSmicro 3M has been designed for a temperature range from 50°C to 600°C. Its special spectral range of 2.3 µm makes it the ideal IR pyrometer for temperature measurement of metallic surfaces starting from 50°C and it allows for measurements through glass.
The small infrared measuring head is optimally suited for installation in limited spaces and subsequently makes possible an especially cost-efficient mechanical process integration.
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 2M has been designed for a temperature range from 250°C to 1,600°C. Its special spectral range of 1.6 µm makes it the ideal IR pyrometer for temperature measurements of metals.
The small infrared measuring head is perfectly suited for installation in very limited spaces and allows for an especially cost-efficient mechanical process integration.
The pyrometer optris CT LT is equipped with one of the world’s smallest infrared sensors with a high optic resolution of 22:1. Additionally, it offers a high variability due to selectable analog outputs as well as several digital interfaces in the electronics box.
The extended version, the pyrometer CTex LT, is additionally equipped with Zener double barriers (for employment in explosion-prone areas).
The pyrometer optris CTfast LT is perfectly suited for especially quick measurements ,due to its extremely short response time of 6 ms. The unchoppered sensor allows a continuous temperature surveillance of fast processes in a spectrum of -50°C up to 975°C.
The pyrometer optris CThot LT has been developed for the most extreme conditions in high-temperature areas and is acclaimed for its especially high temperature resistance. Employment of the inrared thermometer in ambient temperatures of up to 250°C without additional cooling poses absolutely no problems.
Due to the mentioned features, the IR pyrometer is especially suited for applications in driers, in tempering for metal and glass industries, in the processing of plastics and textiles, and in the semiconductor production. By request, the IR thermoemters are available in an explosion-safe design with ATEX certificate.
The Calog-LC Display is a portable, handheld unit that is able to display a Load cell value.The Lithium-Ion battery makes it possible to use the calibrator for a reasonable period of time as a portable load cell indicator in industrial plants or emergency situations. For longer applications, such as with a cattle scale, auxiliary power can be supplied via an external 12volt battery, charger or car cigarette lighter socket. In order to display mass, force, strain or torque from load cells the unit allows you to set the sensitivity in mV/V, range, decimal points and units.Zero trim can offset deadweight and span trim is available to increase the reading accuracy with the help of calibrated weights. Selections of software options such as tare, peak hold and auto-zero maintenance are included. The indicator can be used for one 350 Ohm or three 1000 Ohm load cells with a fixed 5Vdc excitation.
The infrared cameras optris PI 400i / PI 450i are the smallest thermographic cameras in their class. Being equipped with a measurement speed of 80 Hz and an optical resolution of 382 x 288 pixels they provide real-time thermographic images in high speed.
The IR camera PI 450i is, due to its thermal sensitivity of 40 mK, specifically suited for the detection of slightest temperature differences, making it indispensable in quality control of products and in medical prevention.
The compact and high-performance infrared cameras offer a temperature range of -20°C up to 900°C, being optionally upgradeable up to 1500 °C. They can be delivered with exchangeable optics, industrial thermal imager equipment and they come with an extensive license-free thermography software package.
The Series 1000 and 2000 are a range of extra large 3 to 5 digit LED array displays, 125 mm digit height, designed to be used in process / temperature / weighing applications where high visibility and distant viewing is required. Using high intensity wide angle LED's in an IP65 enamelled steel housing ensures clear viewing distances of greater than 50 metres. For high ambient temperature conditions, an optional special coated glass window is available. Typical applications include downtime, time and production control in large factories, the indication of load cell inputs / crane overload protection, process signals such as temperature, pressure, level, and AC or DC voltages and currents. For electrical specifications, input signal details, as well as the terminal connector assignments in the Extra Large Display, see the individual indicator operating manuals (e.g. Model 4001). Standard DPM indicators are used and internally fitted for the internal signal conversion for the Extra Large Displays. (Models ending in a 2)
The Model 9400 is a Miniature space saving 92 x 92 x 26 mm DIN rail mount AC/DC voltage dual channel process power supply. The Model 9400 is a Miniature space saving 92 x 92 x 26 mm DIN rail mount dual channel process power supply. The outputs are galvanically isolated from each other as well as the input power supply. The 9400 outputs are regulated to 24V +/- 5% and current limited to 38mA. The 9400 outputs also contains an LED indication for correct operation or to indicate a current limit / short circuit condition. The 9400 also has a jumper setting to increase the current limit to 100mA per channel. The outputs can also be paralled together to increase the overall current if needed.
The Calog DPM9500 is a miniature space saving DIN rail mount current / volt / potentiometer two-wire transmitter. The Calog DPM9500 accepts standard process inputs of 0(4)-20mA, 0-2V, 0-10V, 0-20V or potentiometer and converts them to a 4-20mA loop powered signal. The Calog DPM9500 also has an LED function for indicating the state of the loop (LED intensity indicates the amount of current flowing in the loop). The Calog DPM9500 can be ordered with or without the onboard loop power supply option.
The 9600 is a miniature space saving DIN rail mount loop powered isolator designed specifically to eliminate ground loop measurement problems. The unit generates an output current in a load which is the same as the input current but galvanically isolated. The unit boasts galvanic isolation in excess of 1000V between input and output and requires no additional power supply. The 9600 is available in single or dual input/ouput versions. The dual unit can also be used to obtain two isolated outputs from one input (wire in series).