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.
12-Way 1-Pole Thermocouple selector switch
The DPM6004MF use the latest ARM microprocessor technology to offer a powerful, compact, field-mount unit that you can select for a variety of weighing functions at a cost-effective price. The main advantage to the user, servicing organisation or marketing company is having one electronic unit that can be used for almost any application in the weighing industry.
A loadcell transmitter is used to convert loadcell outputs into a standard instrumentation analogue signal such as 4-20mA or 0-10volts, it will also supply power to excite one or more load cells. The 6004MF has many additional features such as displays for mass and programming, digital communications for direct connection to control computers and alarms. Our weighing electronics has always incorporated a recalibrate, zero trim and span trim feature. This is a simple way to set up a strain-gauge load cell system. All the variables, such as sensitivity and range, are inserted in the precalibrated section so that the system is reasonably accurate before adding test weights. The weighing system is then zero trimmed (back balanced) to offset the dead weight of weigh bin, weigh frame or weighbridge deck. With known test weights the system can be span trimmed to get higher accuracy. In some instances, such as very large weigh tanks where it is not possible to use test weights, pre-calibration using factory test certificates for loadcell sensitivity results in acceptable overall system accuracy.
The ARM processor used incorporates a USB port and a real-time clock with day/date. We have made full use of these facilities and added an optional, factory fitted, global positioning system (GPS) to cater for such applications as on-board truck weighing, positioning and data logging. In refuse removal, some countries are introducing legislation for customers to pay by weight for this service. Farmers are starting to monitor crop production and fertiliser distribution by location to improve farming efficiency. Logging contractors need to load for maximum profit without incurring overweight fines.
The unit is available as the DPM6004MF Multi-function unit -, a DPM6004LC - a load cell field mount transmitter and the DPM6004BW - a dedicated Belt weigher field mount transmitter.
4 digit ASCII bus/DIG bus,45mm display
5 Digit ASCII bus/DIG Bus, 57mm display
6 Digit ASCII bus/DIG Bus, 20mm display
8 Digit ASCII bus/DIG Bus, 20mm display
5103 transducers are double-ended, centre-loaded shear beam load cells. The 5103 is constructed of nickel-plated alloy steel. These products are suitable for tank weighing systems, low-cost weighbridges, and axle weighers. A reliable sealing is ensured by the proprietary TRANSEAL potting compound and additional mechanical protection of the strain gage area. A specially designed mounting arrangement is available, providing the ideal solution for vessel/tank weighing.
The Model 9103 is a double-ended, centre-loaded shear beam type load cell constructed of stainless steel.
This product is suitable for tank weighing systems, low-cost weighbridges and axle weighers.
A reliable sealing is ensured by the proprietary TRANSEAL potting compound and additional mechanical protection of the strain gage area.
A specially designed mounting arrangement is available, providing the ideal solution for vessel/tank weighing.
The Load cell HPS is a unique fully welded all stainless steel single point (moment insensitive) load cell. This product is suitable for low capacity platform scales, multi-head packaging machines, check weighers, loss-in-weight feeders, belt scales, and general process weighing applications. The unique construction ensures that this product can be used successfully in harsh environments found in the food, chemical, and allied industries. This product meets the stringent Weights and Measures requirements throughout Europe.
The Load cell ASC2 is a single column, stainless steel compression load cell fully compatible with original Model ASC. This product is suitable for use in road and rail weighbridges and process weighing applications. The fully welded construction and built-in surge protection ensures that this product can be used successfully in many harsh environments. This load cell meets the stringent Weights and Measures requirements throughout Europe and the Americas
The KSR is a sealed, single column, compression load cell. This product is suitable for high capacity platform scales and level control or process weighing in general. A reliable sealing and mechanical protection of the strain gage area is ensured by the use of stainless steel diaphragms and a housing which are cemented to the measuring element.
The KOBOLD flow meter KFR operates on the proven suspended float system, that is, the installation position is vertical and rthe flow is from bottom to top.
The instrument is constructed as a single unit, that is, it has an acrylic housing with removable, connections made of PVC brass or stainless steel.
The fliow meter is thus very reasonable priced.
The KOBOLD plastic flow meters of model KSM are based on the float principle with the float moving freely without friction in the measuring tube.
The indication point is at the greatest diameter of the float.
The floats are supplied with integrated magnets for operation with a bistable reed contact.
The KOBOLD flow meter and switches model VKG have a spring-loaded float
The contact is embedded within a height-adjustable plastic housing to prevent damage to the contacts by mechanical action or aggressive atmospheres.
Compact geared potentiometers - IP52
4-20 mA output
The IK360 inclination sensor is an absolute inclination sensor for accurate angle or inclination measurement based on MEMS technology. Thanks to the robust design up to IP6K9K and the integrated temperature compensation, the inclination sensor can also be used in applications with substantial external influences. In addition, the free programming of system parameters as well as the teach-in function for measuring range, zero point setting and direction change provides a high degree of flexibility and easy integration into the overall system. The IK360 is available in a single- and two-axis version and with a variety of interfacess.
For small SIKO handwheelsScale 51.7mm, reinforced plastic housing either dust-tight, oil filled or waterproof, scale and pointer
Individually usable for third-party handwheels
Scale 66.8mm, reinforced plastic housing either dust-tight, oil filled or waterproof, scale and pointer