µMETER-SLM/2

Product Types – SLM/2 divided measurement system for discrete part length measurement of long parts up to 15 m length

µMETER-SLM/2 System with two-part transmitter and two-part receiver array for highly accurate measurement of discrete part lengths during longitudinal transport. For parts with a length of up to approx. 15 m. The SLM/2 measurement concept is similar to the concept of the standard SLM system, however, the SLM/2 consists of two separate transceiver arrays which are connected by cable. Application Cases SLM/2: For the measurement of discrete parts > 5 m For measurement material length differences of a maximum of 4.5 m – e.g. for part lengths from 2500 mm to 7000 mm, or from 10000 mm to 14500 mm. Application if structurally no continuous sensor arrays can be used SLM/2 is also used when a cheap but accurate solution for discrete parts of different lengths is needed and if the user is ready to move one sensor part to the expected target length Enlargement of the length measuring range by the use of several SLM/2 gauges in series. Properties SLM/2: The partial sensor for detecting the material end edge consists of a SLM-L0.1 with additional plug connection Different lengths of the partial sensor are available for detecting the leading material edge from 0.4 m to max. 4,5 m length LED-based transmitted light sensor typical measuring accuracy of +/- 0.1 mm per meter measuring length Measurement in the material feeding direction at up to max. 250 m/min (depending on the total system length) Maintenance-free, permanently calibrated Standard Interface: RS485 Integration in existing conveyor technology Fieldbus – optional Sorting control – optional Sorting mechanism – optional Conveyor technology – optional

Technical Data – SLM/2 divided measurement system for a discrete part length measurement on long parts up to 15 m length

Accessories – SLM/2 divided measurement system for discrete part length measurement on long parts up to  approx. 15 m length

Interface Box for PC Operation SLM-BOX

Interface box for connecting the SLM system to a PC or laptop. Allows for easy connection and supply of the SLM sensor. With RS485 output interface and plug-in power supply.

Shielded Cables SLM-K3, K10

Sensor cable for connecting the two SLM sensor lines with each other and for connection to an interface such as SLM box or bus module, a controller or a display.

Length Display SLM-DISPLAY-BOX	Interface box with length display for connecting the SLM system to a PC or laptop. Box with RS485 output interface and plug-in power supply.
Control/Control Unit SLM-CONTROLLER	Display and Control Unit for the SLM sensors provide the following features: Display of all measurement values Display of sensor status Input of preselection lengths Reset of current length Cutting contact, pre-contact output Sensor parameterization
Sorting Control SLM-SPS	The SPS sorting control for the SLM sensors provide the following features: Operation via Touch-Screen Display of all measurement values Input of nominal lengths Input of low and high tolerance values Output of sorting signals Product data management Measurement data storage

Measurement Tripod SLM-TRI

The shorter SLM sensors are lightweight and therefore very well suited for mobile measurement in conjunction with the ELOVIS tripods (TRI). The TRI tripod consists of: tripod, boom with joint, sensor attachment to the boom with ball head and sensor mounting plate.

PC Software SLM-CMS

The CMS configuration and monitoring software is used for SLM operation, adjustment of setpoint and tolerance values as well as the display and storage of measurement values on a PC, laptop or tablet computer. The CMS software is mainly used for manual measurements.

Profibus-DP, ProfiNet-RT, Ethernet-IP µSPEED-PB, µSPEED-PN, µSPEED-EN

Standard bus interface modules with the following output: Length (in m) , speed (in m/s), status signal (valid/invalid)

Casing for Air Purge SLM-HSE	The stainless steel casing SLM-HSEe serves to protect the sensor lines from contamination and inappropriate ambient temperatures. The HSEe must be kept clean with suitable scavenging air.
Quick-Change Protective Foil µSPEED-QCF	The quick-change protective foil μSPEED-QCF (Quick-Change Foil) is designed for use in harsh environments with heavily polluted ambient air. The QCF allows the replacement of an older protective foil in minutes and prevents the need to clean the actual glass of the sensor system.

Conveyor Technology and Sorting Technology

Conveyor technology, conveyor belts, carriages, slide rails, push-out devices and sorting machines are offered together with experienced partner companies.

µMETER-SLM/2 – Divided Measurement System for Discrete Part Length Measurement on long parts up to approx. 15 m length

SLM/2 gauges consist of each, a divided transmitter and a divided receiver array for non-contact discrete part length measurement of parts during their longitudinal movement. SLM/2 systems are used for the final measurement of parts with a length of 5 m up to apprx. 15m, or if structurally no continuous SLM measurement arrays can be used. The discrete part to be measured passes the SLM/2 System without stopping in longitudinal direction. As soon as discrete part is located completely between both pairs of sensor arrays which are connected by cables (both with a light transmitter array and a receiver array), a measurement is automatically triggered. To ensure that the measurement can take place with high accuracy, the discrete part already has to be separated during measurement, however, a distance between two subsequent discrete parts of only 50 mm in between two parts is sufficient. In addition, the measurement object should pass the SLM system as straight as possible, because the SLM gauge measures the shadowing of the measurement object in the transmitted light. If the measurement object is twisted or inclined, the measured projection can cause a measurement which is rather too long or too short, depending on the object’s width and torsion. Furthermore, it is beneficial, if the edges of the measuring object are cut with right angles and there are no ridges, cutting waste or chips left over on the front and end surface. The active measurement array is only approx. 2 mm high and is located in the middle of the sensor profile, which has a cross-section of 30 x 30 mm.

SLM/2 principle drawing (side view):

SLM standard – working concept:

Videos – SLM/2 divided measurement system for discrete part length measurement on long parts up to 15 m length

Product-Tutorial – SLM Length-Section Light Scanner Part Length Measurement Systems – SLM Setup
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems – Manual Tube Measurement
Application Video – SLM/2 Length-Section Light Scanner Part Length Measurement Systems – Length Measurement System for long discrete parts SLM/2 – Aluminium profiles
Application Video – SLM/2 Length-Section Light Scanner Part Length Measurement Systems – Length Measurement System for long discrete parts SLM/2 – tubes
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems -Measurement of profile length with SLM
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Measurement of film sheet length after cutting, before sorting/packaging
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Length Measurement on cut tubes
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Width Measurement of rolls
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Part Length Measurement on short plastic profiles at high speeds
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Part Length Measurement of 354 mm long plastic profiles after extrusion and cut
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Small tubes in manual part guidance
Application Video – SLM Length-Section Light Scanner Part Length Measurement Systems Width Measurement of Rolls with SLM

Downloads – Length Section Light Scanner Discrete Part Length Measurement System

SLM – Product Overview