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Datasheet
Self-contained Retroreflective- and Diffuse-mode Laser Distance Sensors
• Diffuse model with extremely long distance ranges:
◦ Up to 3 meters with black target
◦ Up to 7 meters with gray target
◦ Up to 10 meters with white target
• Retroreflective model range: up to 250 meters
• Visible pilot laser for easy alignment
• Multiple outputs in each model: discrete outputs can be used for precision
background suppression; and alarm outputs together with display provide easy
troubleshooting
◦ Diffuse models: Two discrete (PNP) plus 2 alarm outputs, and 4-20 mA
analog
◦ Retroreflective models: Two discrete (PNP) plus 2 alarm outputs
• Fast, easy-to-use TEACH-mode programming via integrated push-buttons or serial
interface (no potentiometer adjustments)
• Ongoing LCD display of sensing distance selectable in millimeters or one-
hundredths of one inch
• RS422- or SSI-compatible serial connection options
WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious injury or
death. This device does not include the self-checking redundant circuitry necessary to allow its use in personnel
safety applications. A sensor failure or malfunction can cause either an energized or de-energized sensor output
condition.
Models
Models Sensing Mode Laser Class Cable1 Sensing Range2
Discrete
Outputs
Analog Output
LT7PIDQ Diffuse
Class 2 pilot laser;
Class 1 sensing laser
Integral 12-pin M16
QD connector
0.5 m to 10 m (20 in to 33 ft)
2 PNP plus 2
Alarm
4 mA to 20 mA
LT7PLVQ Retroreflective 0.5 m to 250 m (20 in to 820 ft) N/A
Overview
Status
Indicator
LEDs
2-Line
Digital
Display
Programming
Buttons
The sensor has an LCD display and 3 push buttons, which control all programming
functions. Serial interface programming can also be accomplished via SSI or RS422.
Four status indicator LEDs on the sensor front/top provide ongoing status of power and
outputs.
The sensor has a 2-line LCD display and four LED indicators for ongoing
indication of
sensing status: Power ON, Alarm, and Outputs 1 and 2.
In Run mode, the current measured value is displayed in the top line of the sensor's
display, in millimeters or hundredths of an inch, as selected.
1 Requires a
mating cable.
2
Diffuse-mode range specified using a 90% reflective white card. Retroreflective-mode range specified using the specified retroreflective target.
L-GAGE
®
LT7 Long-Range Time-of-Flight Laser Sensor
Original Document
120244 Rev. C
16 February 2017
120244