InteliSENS® SL mini Series

InteliSENS® SL mini Series

Speed & Length Measurement

The InteliSENS® SLmini non-contact speed and length measurement gauge is ideal for flat surface products in “roll to roll” or “cut to length” processes. Paper, Film, Foil, Wovens, Non-Wovens, Textiles, Roofing, Sidings, Gypsum Board are just a few examples. Applications where speed measurement is critical for drive control or where length measurement is critical for product quality will benefit from the increased accuracy of Laser Doppler Speed and Length Measurement.
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  • No Slip, No Wear, No Marking of your product
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  • Pulse outputs like your encoder
  • Digital Communications you need
  • Stand Alone Measuring Device or Fully Integrated to PLC

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 SLmini 1220SLmini 3060
Stand Off Distance120mm
Depth of Field20mm
Minimum Speed0.1 m/min
0.33 ft/min
0.25 m/min
0.82 /ft/min
Maximum Speed2000 m/min
6562 ft/min
5000 m/min
16404 ft/min


Factory Calibrated to better than 0.05% within the central 20% of the Depth of Field.
Repeatability of 0.02%


Maximum Acceleration Rate of 1000m/s2 (3280ft/s2)
Measurement Rate Up to 50,000/sec (20us)


Speed Measurement selectable m/min, ft/min, yd/min
Length Measurement selectable m, ft, inch, yd

Material Present

For part length measurement


Pulse Outputs x 3

RS422 Differential Pair Pulse Outputs Configurable as Quadrature or Index
Default Output 5vdc or User Input to 24vdc Max
2MHz Max Pulse Output Rate

Logic Input x 2

Non Isolated, Normally Open (High State) Pulldown Logic Inputs
Maximum Voltage: +/-30V Minimum Current 3mA
Reverse Direction, Length Hold, Display Hold, Speed Hold, Total Length
Reset, End of Reel / Batch Length Reset

Relay Outputs x 3

Maximum Voltage 25Vdc Current 0.1A
Gauge Ok, Object Detected, Gauge Measuring, Good Readings Low,
Gauge Temperature High, Preset Length 1, Preset Length 2

CANbus x 1

RS232 Modbus Communications
USB using RS232 - USB Converter Cable
ZM4000 Printer Communications

CANbus x 1

Connects to Proton Products CDi4 Display

i-BUS x 1

Connect to a PC or Mobile Device and use the Proton Products Gauge
App available for iOS and Android. Ideal for gauge configuration and

i-BUS x 1

Ethernet TCP/IP Modbus is the Default Communication. Connect to a PLC using optional ProfiBus, ProfiNet, EtherNet I/P or DeviceNet.

Image Image Image Image


3B 类可见激光。
波长 650 - 670 nm,通常为 658 nm,光束直径为 3mm (0.12”)
总发射功率40mW。 隔离距离处的功率密度 50mW/cm2

Laser Doppler

Electrical and Operating Requirements

Power Supply
15 - 28 Vdc 

Power Consumption
15 Watts 

Operating Temperature
5°C - 40°C (41°F-104°F)*

*See Accessories for High-Temperature protection options

Environmental Protection
IP 67

Size and Weight


142mm (5.6”)

104mm (4.1”)

53mm (2.1”)

3kg (6.6lbs)