Performance
| SLmini 1220-i4 W | SLmini 3060-i4 W | |
| Stand Off Distance | 120 mm 4.72” |
300 mm 11.81” |
| Depth of Field | 20 mm 0.79” |
60 mm 2.36” |
| Minimum Speed | 0.2 m/min 0.66 ft/min |
0.2 m/min 0.66 /ft/min |
| Maximum Speed | 2000 m/min 6562 ft/min |
3000 m/min 9842 ft/min |
| Accuracy | Factory calibrated to better than 0.05%. Repeatability of 0.02% |
| Measurement | Maximum acceleration: 500 m/s2 (1640 ft/s2) Measurement rate: Up to 24,400/s |
| Units | Speed measurement selectable: m/min, ft/min, yd/min Length measurement selectable: m, ft, inch, yd |
| Mode | Normal (Continuous Length), Batch Length |
| Object Detection | Automatic Detection and Object Present |
Connectivity
6x pulse outputs
5 Vdc output or custom supply up to 25 Vdc. Max 1 MHz. Configurable to 6x single end pulse outputs; 1x differential quadrature output; 3x single end quadrature outputs; 3x differential outputs. Opto-isolated when using PSU-BOB or BT100.
5x logic inputs
3 Programmable Inputs: Zero Length, Speed Pause, Length Pause, Forward-Reverse. 2 Fixed inputs: Laser enable and Shutter enable. Max. input voltage: 30 Vdc.
3x logic outputs
Configurable to: Gauge OK; Gauge too hot; Good reading; Object detected; Preset length 1 / Batch length reached; Preset length 2 / Batch length reached; Gauge measuring speed.
RS232
MODBUS RTU, PROTON ASCII code or Label Printer
USB using RS232 – USB Converter Cable
RS485 MODBUS RTU, PROTON ASCII code (Not available with PROFIBUS)
iBUS (PROFIBUS, PROFINET, EtherNet/IP)
Ethernet Modbus TCP (or ‘Ethernet TCP/IP’); Ethernet UDP
OPC UA compatibility: OPC UA 1.03
Wi-Fi for gauge configuration and diagnostics.
Laser Doppler
Class 3B Visible Laser.
Wavelength 650 – 670 nm, typically 658 nm with a beam diameter of 3mm (0.12”)
Total emitted power 50 mW. Power Density at Stand-Off Distance 560 mW/cm².
Electrical & Power Requirements
| Power Supply | Power Consumption | Operating Temperature | Environmental Protection | |
| 18 – 30 Vdc | 15 Watts | 5°C – 40°C (41°F-104°F)* | IP 67 |
*See Accessories for High Temperature Options
Size & Weight
| SLmini 1220-i4 W SLmini 3060-i4 W |
Height 157mm (6.2”) |
Width 104mm (4.1”) |
Thickness 53mm (2.1”) |
Weight 1kg (2.2lbs) |
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*See Accessories for High Temperature Options




