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Mini SL

SL Mini Series Unidirectional Speed and Length Measurement

Scantron’s SL Mini Series non-contact, unidirectional speed and length gauges provide extremely accurate speed and length measurements in almost any sheet material or converting application.

The SL Mini Series has been used by clients in a range of industries and across production processes for web products, woven and non-woven materials, paper, plastic film, tapes, building materials, flooring and labelling. All can be accurately measured using the laser Doppler method employed by the SL Mini Series gauge.

Applications requiring a precise cut-to-length process benefit from the non-slip and highly accurate laser measurement technique which reduces scrap, increases uptime and improves material yield by eliminating product “Give Away” or “Short Length” claims.

SL mini Series gauges are money-saving, direct replacements for traditional problematic and high-maintenance contact wheel and roller-type devices and are extremely easy to install and operate.  Integration with production line controllers such as PLCs is eased by the availability of a wide variety of industry standard communications interfaces.

Scantron has a number of speed and length measurement solutions for a range of environments and applications. Contact us to discuss your requirements.

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Specification - UnidirectionalUnitsSL1220SL3060
Minimum speedm/min0.10.25
Maximum speedm/min50005000
Stand-off distancemm120300
Depth of fieldmm2060
SLR
AccuracyMaximum 0.05%
RepeatabilityMaximum 0.02%
Maximum acceleration>1000
Internal measurement rate200kHz
Measurement update time200 kHz internal and 20µs at the outputs
Power requirement24Vdc, 8 Watts
Protection ratingIP67 (harsher envoronments possible with an optional environmental enclosure)
Operating temperature5° ~ 45°C (higher temperatures possible with an optional environmental enclosure)
Gauge dimensionsL x W x H 140 x 105 x 50mm
Laser beam diameter4mm
Laser safety classificationClass 3B
Diagnostic displayIntegrated LCD
Pulse outputs2xpluse outputs or 1xquadrature output, freely programmable, pulse rate <1mhz
Digital inputsLaser enable; Shutter enable; 3 programmable inputs
Digital outputsShutter status; 2 programmable outputs
Standard communications interfacesRS-232; Ethernet TCP/IP (Mopdbus protocol)
Display communicationsProton CANbus for optional SiDi-CDI interface display
Optional communications interfaces
(replaces Ethernet TCP/IP interface)
PROFINET DeviceNet
PROFIBUS EtherNet/IP

The SL Mini Series gives extremely accurate unidirectional speed and length measurements across multiple production processes and materials.

  • Non-contact, high-speed, solid-state laser speed and length measurement with no slippage, drift, mechanical wear or maintenance compared with contact wheel/roller systems
  • Unidirectional speed and length measurement
  • Ultra-compact design with a footprint comparable to a smartphone
  • Optimised for sheet material and converting applications
  • UKAS-traceable calibration; accuracy better than 0.05% and repeatability better than 0.02%
  • Rugged industrial design for use in factory environments
  • Available fitted with industry-standard communications interfaces for easy integration with PLCs and production line equipment
  • Excellent value with low cost of ownership

The miniSL is a very versatile piece of non-contact measurement equipment and is suitable for a wide range of applications and almost any type of sheet material measurement including in the production of the following products:

  • Flooring and carpet
  • Abrasive paper
  • Roof foil
  • Adhesive tape
  • Cold metal
  • Paper
  • Packaging material
  • Construction & insulation material
  • Special extrusion and calendaring
  • Ceramics
  • Cord, lead
  • Stranded products
  • Insulated products

The following are some of the applications covered:

AiG2-SL/SLR - Display module
Connects via the CANbus port
Displays measured speed and length
Provides menu-based settings of all parameters
Bright VFD dot matrix display
AiG2 Panel Mount Kit
Bracket for mounting the AiG2 to an end-user panel
CAN-bus cable - for connecting the gauge via a PSU-BOB mini to a CDi interface display unit
Available in 1, 5, 10, 20, 40, 60 and 100m lengths
PCIS SL/SLR mini - PC Interface Software
PC-based software package
User-friendly graphical user interface
Displays all measurements
Provides menu-based setting of all parameters
Provides trending, data logging, presets and alarms
Gauge to PC connection via RS-232
PSU-BOB mini - Power supply, break-out box and laser safety key switch
Connects via the DB25 “INTERFACE” connector
Supplies 24VDC electrical power to the gauge
Provides screw terminal access to all electrical input and output pins
Provides DB9 connectors for access to the CANbus, RS232 and optional industrial bus communications ports
Provides a RJ45 connector access to the ethernet port
End user cables are sealed with three cable glands
Provides a laser enable key switch for compliance with laser safety requirements
Input voltage range: 90 – 260VAC @ 45 – 65Hz
DB25 Cable - For connecting the gauge "INTERFACE" port to a PSU-BOB mini
Available in 1, 3, 5, 10, 20 and 30m lengths
Terminal Expander - Gauge-mounted break-out bos
Connects the DB25 “INTERFACE” connector
Provides DB9 connector access to the RS-232, CANbus, Ethernet or optional industrial bus communications ports
Provides screw terminal access to all electrical input and output pins
End user cables are sealed with cable glands
Industrial Bus Module - For connecting the gauge to industrial communications buses, such as used with PLCs
May be retrofitted
Protocols: DeviceNET; PROFIBUS; PROFINET; EtherNet/IP
Base Plate
For securing a SL/SLR mini gauge to a mounting surface
Vibration Reducing Kit
For use with the above Base Plate in high-vibration environments
3D Adjuster Plate
For use with the above Base Plate for precision alignment of the SL/SLr mini gauge to the measured object
Provides ±3o of roll and yaw adjustment
Laser Protection Tube for SL/SLR mini 1220
Enclosure of the laser beam to within 10mm of the object for laser safety and harsh environments
Laser Protection Tube for SL/SLR mini 3060
Enclosure of the laser beam to within 10mm of the object for laser safety and harsh environments
Air Wipe
High-efficiency, air-wiped protection window for dusty/steamy environments with a quick-change window release mechanism
Provides an 8mm push fit tube fitting to connection to a clean air sourc
Cooling Plate
Air or water cooled plate for installation between the gauge and mounting surface
For use in ambient temperatures up to 60°C