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Speed & Length Measurement
InteliSENS™ SLR Series

Speed & Length Measurement

InteliSENS™ SLR Series

InteliSENS™ SLR Series - front view

InteliSENS™ SLR Series - connector panel view

InteliSENS™ SLR Series - with optional AiG2 interface display unit

Features

Non-contact, high-speed, solid-state laser speed and length measurement with no slippage, drift or mechanical wear and greatly reduced maintenance compared with contact wheel / roller systems.
Bidirectional speed and length measurement; accurately measures speed and length during line stoppage, reversal and creepage.
UKAS-traceable calibration; accuracy better than 0.05% and repeatability better than 0.02%.
Rugged industrial design for use in harsh factory environments.
Available fitted with industry-standard communcations interfaces for easy integration with PLCs and production line equipment.
Excellent value with low cost of ownership

Introduction

Proton Products InteliSENS^TM SLR Series non-contact, bidirectional speed and length gauges provide extremely accurate speed and length measurements in almost any production environment.

Automatic direction detection and measurement down to zero speed means that the InteliSENS^TM SLR gauge length measurement counts both up and down, so final length measurements will still be accurate to 0.05% with production lines that exhibit stoppage, direction reversal and creepage.

Production processes for wire, cable, web products, woven and non-woven materials, paper, plastic film, tapes, building materials, floorings and labelling can all be measured using the laser Doppler method.

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.

InteliSENS^TM SLR 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.

Operating principle

Proton Products InteliSENS^TM Series speed and length gauges illuminate the measured surface with a precisely pitched interference pattern created by the intersection of two laser beams. The alternating bright and dark interference fringes modulate the light scattered by the object with a frequency proportional to the object speed. This scattered light is detected by a photodiode and the electrical signal digitally processed to determine the frequency and hence the speed. Object length is then calculated by integrating the speed measurement over time.

The InteliSENS^TM SLR series bidirectional speed and length gauges extend this principle by using a high-frequency Bragg cell modulator to illuminate the measured surface with a scanning interference pattern, which generates an oscillating light signal when the object is stationary. Direction of motion is determined by whether the scattered light frequency is higher or lower than the stationary frequency.

Specifications

Model	SLR1525	SLR3060	SLR6060	Units
Stand-off distance	150	300	600	mm
Stand-off distance	5.91	11.8	23.6	inch
Depth-of-field	25	60	60	mm
Depth-of-field	0.98	2.36	2.36	inch
Maximum speed (bidirectional)	2500	4000	4000	m/min
Maximum speed (bidirectional)	8200	13100	13100	ft/min

Common Specifications

Specification	Minimum	Typical	Maximum	Units
Accuracy*			0.05	%
Repeatability			0.02	%
Acceleration			500	m/s2
Measurement interval			40	?s
Laser spot size			3	mm
Operating temperature	5		45	°C
Operating temperature	41		113	°F
Environmental protection			IP67
Weight			3	kg
Weight			6.6	lb
Length			230	mm
Length			9.06	inch
Width			130	mm
Width			5.12	inch
Height			75	mm
Height			2.95	inch
Power supply	15	24	25	VDC
Power consumption			20	W

*only valid if the measured object is positioned within the central 20% of the depth-of-field.

Measurement units (end-user configurable)	Speed	metres/minute	feet/minute
Measurement units (end-user configurable)	Length	metres	feet	yards
Laser safety control inputs	Laser	An external closed SPST contact enables the laser diode.
Laser safety control inputs	Shutter	An external closed SPST contact opens the laser shutter.
2×Logic inputs (end-user configurable)	Electrical	Maximum input voltage: +24Vdc
	Function	Length reset	Display hold	Length hold
		Speed hold	Direction	Pause
3×Relay outputs (end-user configurable)	Electrical	Isolated, floating relay contacts
		Maximum voltage: 50Vdc	Maximum current: 0.5A
	Function	Gauge OK	Laser at temp	Shutter open	Laser on
		Measuring	Preset Length 1	Preset Length 2
3×Pulse outputs (end-user configurable)	Electrical	Opto-isolated differential pairs
		Output voltage: 5V or user supplied (up to 24V)
		Maximum frequency: 250kHz
	Function	Quadrature	Index
Analogue output (end-user configurable)	Electrical	Output voltage: 0 to +10V (end-user scalable)
Analogue output (end-user configurable)	Function	Speed	Good readings
CANbus communications		Connects to an optional Proton Products AiG2 interface display unit
Serial communications		RS-232	RS-422 / 485
Optional communications (factory-installed, choice of one)		PROFIBUS	Ethernet/IP	DeviceNET
Optional wireless communications (factory-installed, choice of one)		WiFi	Bluetooth

Accessories

Interface display modules

AiG1

Display module

Connects via the RS-232 port.
Displays measured speed, length and preset length.
Provides setting of preset length and speed limits.

Proton part number: 00001MC970

AiG2-SL

Display module

Connects via the CAN-bus port.
Displays measured speed and length.
Provides menu-based setting of all parameters.
Bright vacuum fluorescent dot matrix display.
Mounts directly on the gauge body or remotely via an extension cable.

Proton part number: 00041MC045

CAN-bus cable

For connecting the gauge to an AiG2 interface display unit

Available in 5, 10, 15, 20, 30 and 50m lengths.

Name	Length / m	Proton part number
CAN 9DD-005	5	00041CB005
CAN 9DD-010	10	00041CB010
CAN 9DD-015	15	00041CB015
CAN 9DD-020	20	00041CB020
CAN 9DD-030	30	00041CB030
CAN 9DD-050	50	00041CB050

CS1G-SL

Display, PSU, break-out box and laser safety key switch

Connects via the “INTERFACE” connector and RS-232 port.
Displays measured speed, length and preset length.
Supplies electrical power to the gauge.
Provides screw terminal access to all “INTERFACE” connector input and output pins.
Provides a laser enable key switch for compliance with laser safety requirements.

Proton part number: 00018MC140

Power supplies and connectivity

PSU-DT

Mains power adapter

Connects via the DB25 “INTERFACE” connector.
Supplies electrical power to the gauge.
Input voltage range: 90 - 260 VAC @ 45 - 65 Hz.

Proton part number: 0001MC264

PSU-BOB-SL

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 “INTERFACE” connector input and output pins.
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 - 260 VAC @ 45 - 65 Hz.

Proton part number: 00041MC360

Terminal Strip-DIN

Power supply, break-out box and laser safety key switch

Breaks out the DB25 “INTERFACE” connector to a DIN rail mountable set of screw terminals.

Proton part number: 00041MC730

DB25 Cable

For connecting the gauge “INTERFACE” port to a PSU-BOB-SL, Terminal Strip-DIN or CS1G-SL

Available in 3, 5, 10, 20 and 30 m lengths.

Name	Length / m	Proton part number
BOB-003	3	00043MC021
BOB-005	5	00041CT005
BOB-010	10	00041CT010
BOB-020	20	00041CT020
BOB-030	30	00041CT030

RJ45 to DB9 converter

For connecting RJ45 8P8C terminated cables to the DB9 EtherNet / IP port.

Proton part number: 00003CM229

Direction sensing

FR Roller

Direction Wheel

For connection to Proton SL gauges for direction sensing (not applicable to SLR gauges).
The roller is placed in contact with the object surface to detection direction of motion.

Proton part number: 00033MC060

Software

PCIS_SL

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 or optional RS-232-to-USB interface cable (RSCon).

Proton part number: 00020SW100

Mountings and laser safety

Tripod

Portable tripod and boom mount

Suitable for gauges that need to be moved from location to location e.g. as a calibration reference for mechanical encoders.
Based on a light weight, portable industrial tripod and extendable aluminium boom (00020TL003).
Two swivel joints (00043MC004) permit easy angular alignment of the boom and the gauge.
A connection plate (00020TL605) is included for attachment to gauges not fitted with a UNC 3/8” thread

Proton part number: 00043MC003

PHA-1

Precision height adjuster

For precision height adjustment of the laser beam to the object under measurement using a hand wheel and lead screw.
Adjustment range accommodates object diameters from 0.05 mm (0.002”) to 200 mm (7.88”).

Proton part number: 00030MC200

PHA-1 3D ADJ

3-axis Precision height adjuster

For precision height adjustment of the laser beam measurement zone to the object under measurement using a hand wheel and lead screw.
Height adjustment range accommodates object diameters from 0.3 mm (0.012”) to 200 mm (7.88”).
Has two additional adjustment axes for aligning the roll and yaw for maximum measurement accuracy.

Proton part number: 00030MC140

SL Laser Guard PHA-1

Laser safety enclosure for PHA-1

Mounts to a PHA-1 to prevent accidental viewing of direct and reflected laser beams.
Integrated interlock switch engages the gauge laser shutter whenever the guard cover is opened.

Proton part number: 00020MC250

SL Laser Guard PHA-1

Laser safety enclosure for PHA-1 (with side skirts)

Mounts to a PHA-1 to prevent accidental viewing of direct and reflected laser beams.
Integrated interlock switch engages the gauge laser shutter whenever the guard cover is opened.
Side skirts contain reflected laser radiation from highly-reflective objects.

Proton part number: 00020MC230 (with side skirts)

PHA-2

Precision cable / wire aligner

For precision alignment of the laser beam measurement zone to cables or wires.
Provides two adjustable cable / wire guides.
Adjustment range accommodates object diameters from 0.3 mm (0.012”) to 10 mm (0.393”).

Proton part number: 00020MC900

SL Laser Guard PHA-2

Laser safety enclosure for PHA-1

Mounts to a PHA-2 to prevent accidental viewing of direct and reflected laser beams.
Integrated interlock switch engages the gauge laser shutter whenever the guard cover is opened.

Proton part number: 00020MC260

Harsh and extreme environment accessories

Air wipe SLMKII

Provides a constant flow of clean air over the laser window to disperse dust, debris or steam.
Easily detached by a quick release screw for cleaning.
Provides an 8 mm push fit tube fitting to connect to a clean air source.

Proton part number: 00041MC240

Air / water inlet elbow connector

For attaching cooling air or water connection.
90° bend, freely rotatable.
8mm push fit pipe connector.

Proton part number: 00002CM696

Calibration accessories

SL Calibration Case

Portable on-site calibration system

Motorised aluminium calibration wheel mounted in a rugged aluminium frame carry case.
Displays speed and length.

Proton part number: 00020TL750