L-GAGE LT7 Series


  • Offered in retroreflective models with two discrete outputs (PNP) for extremely long ranges up to 250 m
  • Available in diffuse models with two discrete outputs (PNP) and one 4-20 mA output for long-range background suppression up to 10 m
  • Provides two alarm outputs with ongoing LCD display for easy troubleshooting
  • Features TEACH-mode programming, using integrated push buttons or serial interface
  • Continually displays sensing distance in millimeters or hundredths of an inch
  • Delivers excellent ±10 mm linearity
  • Offers choice of RS-422 or SSI-compatible serial connection
  • Uses visible Class 2 alignment laser for accurate alignment
  • Provides quick warmup to minimize drift

Product Specifications

Supply Voltage and Current18 to 30V dc (10% max. ripple)
6% black card:0.5 to 3 m
18% gray card:0.5 to 7 m
90% white card:0.5 to 10 m
Retroreflective:0.5 to 250 m, range is specified using one model BRT-250, BRT-540 and BRT-700 retroreflector
Power ConsumptionLess than 4.5 W @ 25° C
Measuring LaserInfrared, 900 nm, Class 1
Laser ControlMeasurement laser is ON when sensor is ON. Pilot (visible) laser enabled during Programming mode, alternates with measurement laser.
Spot SizeDiffuse:3 x 10 mm @ 4 m, 4 x 12 mm @ 6 m, 10 x 20 mm @ 10 m
Retroreflective:ø 20 mm @ 10 m; ø 100 mm @ 50 m, ø 200 mm @ 100 m, ø 500 mm @ 250 m
Pilot Laser (Alignment)Visible red, 650 nm, Class 2
Discrete and Analog Output ProtectionProtected against continuous overload and short circuit
Discrete Output(2) 100 mA, PNP
Discrete Switch PointsAdjustable in 1 mm steps
Discrete Output HysteresisAdjustable, 10 mm min.
Alarm Outputs50 mA, PNP (NO)
Analog OutputDiffuse:4-20 mA
Maximum Cable Length100 m
Output Response Time12 milliseconds
Linearity±10 mm
Resolution/RepeatabilityDiffuse:±4 mm
Retroreflective:±2 mm
Color SensitivityDiffuse:contact factory
Retroreflective:not applicable
Temperature Effectless than ±5 mm over the total sensing range
Minimum Analog Window SizeDiffuse:300 mm
AdjustmentsPush-button-directed password enable/disable, measurement unit select, offset value select, output limits set, output mode select, analog output slope select (diffuse models only) and output limit manual adjust. See data sheet for information.
Serial InterfaceRS-422 or SSI compatible
Serial Measurement SpeedSSI:1.4 milliseconds (SSI cycle 80 microseconds)
RS-422:2.9 milliseconds @ 57.6 kBaud
Indicators2-line digital LCD display. See data sheet for more information. 4 LED indicators:
Green:Power ON/OFF
Red:Alarm (Error) LED
Orange:Output 1 and Output 2 conducting LEDs
ConstructionABS shock-resistant housing; PMMA window; polycarbonate displays
WeightApprox. 230 g
Environmental RatingIEC IP67
Connections 12-pin M16 connector; 100 m max. cable length. QD cables are ordered separately.
Operating ConditionsTemperature:-10° to +50° C in continuous operation
Storage Temperature-30° to +75° C
Vibration ShockEN 60947-5-2
Application Notes• All specifications are based on the specified surface at constant ambient conditions and following a minimum operating time of 15 minutes.

• For best accuracy, allow a 15-minute warmup before programming or operating

Crosstalk avoidance: Light spots must be separated by at least 200 mm.


Data Sheets

Document Name Part Number File Size Download
1. LT7 Series -- Datasheet 120244 Download


Data Sheets

Document Name Part Number File Size Download
1. LT7 Series - Japanese J20054Y Download

Banner Insider eNewsletter

Helpful application information, new product updates, answers to frequently asked questions, and more.

Subscribe Now »

Looking for CAD Files?

Browse by model family or type in your model number to find STEP, IGS, DXF, or PDF files for your project.

Find them now »

Worldwide Distributors

Banner has more than 3,000 distributors—ready to help you. Enter your U.S. city or zip.

06828 [change]

Find international distributors