TRANSDUCERS, TRANSMITTERS & SENSORS SENSOR WITH ANALOGUE SIGNAL HIGH SPEED MEASUREMENT


With the reed-based, analogue 298A level indicator, elobau is bringing robust and flexible level measurement for industrial machine and off highway vehicle applications to market The company is expanding its


reed-based product range for the level measurement of fuels, coolants, oil, water and other chemical media with the new 298A fuel level sensor. The compact, flexibly configurable fuel level sensor uses an analogue output signal. Continuous level


measurement of a tank’s contents can increase operational readiness and prevent unplanned machine downtimes due to an empty tank. This does not solely apply to vehicle fuel tanks, but also to coolant or oil tanks of hydraulic systems, for example. The main difference to the


proven sister product, the 298 fuel level sensor, lies in the output signal. While the 298 generates a


resistance output signal, the 298A uses an analogue output signal, either as a current signal within the range 4 to 20mA or a voltage signal within the range 0.5 to 4.5 V DC. This simplifies the integration into the vehicle's electrics considerably, since additional components such as converters can be omitted. Furthermore, the 298A level


indicator benefits from most of the advantages of the 298. Due to the reed technology,


the fuel level sensor is especially robust against external influences, works in a temperature range of -40°C to max. +110°C and boasts protection class IPX7 DIN EN 60529 inside containers and outside containers IPX7 DIN EN 60529 and IP6K9K ISO 20653. The head and pipe are made of aluminium. A stainless steel version is currently under development and will be available later this year. www.elobau.com.


FAST AND EASY SET-UP


Precision sensor manufacturer Micro-Epsilon has extended its thermoMETER CT series of non-contact infrared temperature sensors (pyrometers) with a new ultra-high speed version that offers a 300µs response time (90µs exposure time) on metal and non-metal objects with a temperature of 0 to 500°C. In high speed processes with very short cycle times,


requirements for pyrometers used for temperature measurements are challenging. Previously, the combination of high speed, low temperature and short wavelength was never realised and there was always a compromise on at least one of the three. The new thermoMETER CTM-4SF10-C3 infrared temperature sensor (CTM-4) uses a new detector that measures within the spectral range of 2.2 to 6.0µm and is therefore suitable for low temperature (0-500°C) measurements on metals, metal oxides, ceramics and plastics, as well as materials with an unknown or changing emissivity. The CTM-4 is Micro-Epsilon’s fastest infrared pyrometer to date. While the previous models in the CT series operate in the millisecond range, the CTM-4 outputs a measured value every 300µs and takes just 90µs to acquire a stable measurement value. A spectral wavelength range of 2.2 to 6.0µm supports the measurement of various objects including metals and non- metals. For fast parameter set up, the CTM-4 provides an integrated USB interface. With a sensor head diameter of just 14mm and a length of 28mm,


With four times the resolution and ten times the processing speed of their predecessors, the latest multicode readers from ifm electronic can read virtually any type of 1D or 2D code on objects that pass in front of them at speeds of up to 7m/s. Despite their performance and versatility, the readers are as fast and easy to set up as conventional sensors, with the aid of a smartphone app that’s free to download from the ifm website. The new code readers work


reliably with printed, lasered or dot peened codes even on difficult surfaces such as reflective metal. They also deliver dependable results with objects where the background colour or reflectivity is not consistent. The ‘one button teach’ set up process takes only seconds and allows


the readers to automatically optimise image contrast and recognise the code(s) in use. The configuration of the


readers for standard applications is completed with the aid of the smartphone app. Users simply enter the IP or network address for the reader along with trigger data, where needed, and the app generates a dot matrix code on the smartphone display. When this code is held in the reader’s field of view, the configuration is instantly loaded. The readers are offered in


versions with standard, wide- angle and telephoto lenses, and for operation with red or infra-red light. All versions are available for use with either Ethernet/IP or Profinet networks. www.ifm.com/gb/en


32 JUNE 2021 | PROCESS & CONTROL


the CTM-4 can be easily installed in restricted spaces on a machine or production line. The pyrometer can be used in ambient temperatures up to 70°C without cooling. The remote electronics unit (controller) is connected to the sensor head via a cable, which can be up to 15m in length. Important parameters can be entered directly via three keys and an illuminated display on the controller. An integrated USB interface enables the CTM-4 to be connected directly to a PC, where all settings can be fine-tuned using the CompactPlus Connect software. Data capture and recording are also possible using the software. Other serial interfaces or an Ethernet interface are also available as options. Two scalable analogue outputs and three programmable I/Os are available as standard for connecting the CTM-4 to the user’s own process environment. Glenn Wedgbrow, business development manager at Micro-


Epsilon UK, said: “If speed matters in the customer’s production process, the thermoMETER CTM-4 is our fastest infrared temperature sensor yet. We see numerous temperature measurement applications for the pyrometer, including high speed, high volume production such as PET preform temperature monitoring, assembly and packaging processes that involve hot glue dispensing...as well as the more obvious processing of metals and metal oxides, ceramics, plastics and other materials with unknown or changing emissivity.” www.micro-epsilon.co.uk


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66