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L-GAGE LT7 Series
Overview
- 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 Current | 18 to 30V dc (10% max. ripple) |
|---|---|
| Range | Diffuse: 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 Consumption | Less than 4.5 W @ 25° C |
| Measuring Laser | Infrared, 900 nm, Class 1 |
| Laser Control | Measurement laser is ON when sensor is ON. Pilot (visible) laser enabled during Programming mode, alternates with measurement laser. |
| Spot Size | Diffuse: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 Protection | Protected against continuous overload and short circuit |
| Discrete Output | (2) 100 mA, PNP |
| Discrete Switch Points | Adjustable in 1 mm steps |
| Discrete Output Hysteresis | Adjustable, 10 mm min. |
| Alarm Outputs | 50 mA, PNP (NO) |
| Analog Output | Diffuse:4-20 mA Retroreflective:none |
| Maximum Cable Length | 100 m |
| Output Response Time | 12 milliseconds |
| Linearity | ±10 mm |
| Resolution/Repeatability | Diffuse:±4 mm Retroreflective:±2 mm |
| Color Sensitivity | Diffuse:contact factory Retroreflective:not applicable |
| Temperature Effect | less than ±5 mm over the total sensing range |
| Minimum Analog Window Size | Diffuse:300 mm Retroreflective:none |
| Adjustments | Push-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 Interface | RS-422 or SSI compatible |
| Serial Measurement Speed | SSI:1.4 milliseconds (SSI cycle 80 microseconds) RS-422:2.9 milliseconds @ 57.6 kBaud |
| Indicators | 2-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
|
| Construction | ABS shock-resistant housing; PMMA window; polycarbonate displays |
| Weight | Approx. 230 g |
| Environmental Rating | IEC IP67 |
| Connections | 12-pin M16 connector; 100 m max. cable length. QD cables are ordered separately. |
| Operating Conditions | Temperature:-10° to +50° C in continuous operation |
| Storage Temperature | -30° to +75° C |
| Vibration Shock | EN 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. |
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