설명

Amplifier Built-in Ultra-compact Laser Sensor EX-L200

Features

Ultra-compact

Due to the customized IC and optical design, high precision detection is fulfilled with directivity and visibility achievable only by laser. The laser adopted is Class 1 (IEC/EN/JIS/GB/KS/FDA) laser that is safe to use, so that there is no need to separate the areas of sensor usage.

THRU-BEAM TYPE

Minute object detection type [EX-L211]

Spread the beam and lower its density, thus even a minute object can be detected with a small change in the light received intensity. Spot size: 6 × 4 mm 0.236 × 0.157 in approx. (Visual reference value at a distance from the emitter of 1 m 3.281 ft)

Long sensing range type [EX-L212]

A long range detection of 3 m 9.843 ft is achieved. High precision detection with minimum beam spread is possible even in a long range.
Spot size: 8 × 5.5 mm 0.315 × 0.217 in approx. (Visual reference value at a distance from the emitter of 1 m 3.281 ft)

RETROREFLECTIVE TYPE

Long sensing range type [EX-L291]

Achieving ease of installation and 4 m 13.123 ft long sensing range.
Spot size: 6 × 4 mm 0.236 × 0.157 in approx. (Visual reference value at a distance from the emitter of 1 m 3.281 ft)

SPOT REFLECTIVE TYPE

Minute object detection type [EX-L221]

Highly precise sensing with minimum 0.01 mm 0.0004 in diameter. Many applications are possible due to the 300 mm 11.811 in long sensing range.
Spot size: ø1 mmø0.039 in or less (Reference value at a distance from the emitter of 300 mm 11.811 in)

CONVERGENT REFLECTIVE TYPE

Spot type [EX-L261]

Highly precise sensing with minimum 0.01 mm 0.0004 in diameter. Not affected by the background, and able to reliably sense unevenly-colored workpieces.
Spot size: ø1 mm ø0.039 in or less (Reference value at a sensing distance of 50 mm 1.969 in)

Line spot type [EX-L262]

Able to sense thin, glossy or curved-surface workpieces due to line beam.
Spot size: 5 × 1 mm 0.197 × 0.039 in approx. (Visual reference value at a sensing distance of 50 mm 1.969 in)

Highly accurate detection [EX-L211/L221]

Suitable for positioning and minute object detection

*Typical values when the sensitivity adjuster is optimally adjusted.

A repeatability of 0.02 mm 0.0008 in or less at a range of from 100 to 200 mm 3.937 to 7.874 in makes this type best suitable for positioning applications (typical, EX-L221). Moreover, it boasts a top-class detection precision in the compact laser sensor category with the gold wire of ø0.01 mm ø0.0004 in.

Dependable technology yields high precision

Incorporating a high-precision aspheric glass lens

Light aberrations are reduced and a high definition laser spot is possible by incorporating a molded aspheric glass lens.

Small receiver aperture for precision detection [EX-L211/L212]

Errant beams are eliminated by the ø0.5 mm ø0.020 in receiver aperture. Only beams entering the aperture are used, making for high-precision sensing.

Stable convergent distance sensing

For sensing when background object presents

Due to convergent distance sensing, the background has very little effect, enabling stable sensing. Sensitivity adjuster allows you to adjust sensitivity to avoid sensing background objects when the distance between the workpiece and background objects is small.

For sensing unevenly-colored workpieces

Able to reliably sense unevenly-colored workpieces.

Easy beam-axis alignment [EX-L211/EX-L212]

Visual positioning is easy due to silhouetting a sensing object against a receiver.

Visually confirm the optimal receiver position, adjusting the beam axis by aligning the objects while watching the red spot on the beam alignment screen. The diagram on the right shows an example with the lead of a mechanical pencil being detected through visual adjustment.

Same mounting pitch as ultra-compact photoelectric sensor

EX-L200 series has the same mounting pitch as ultra-compact photoelectric sensor EX-20 series so that the time taken in designing is saved.

Strong against water and dust with protection structure IP67

The sensor can be used even in environment where water or dust present because of its protection structure IP67.

M3 screw used for secure tightening (*1)

The mounting holes have metal sleeves inserted to prevent damage to the sensor due to over tightening of the screws.
(Tightening torque: 0.5 N.m)

Sensitivity adjuster (excluding EX-L212□) (*2)

A sensitivity adjuster of small size is incorporated to offer strong performance in minute detection or high precision detection.

Low current consumption (*2)

The laser light source contributes to low current consumption, as it is approx. 5 mA lower than a LED light source.

Conductor thickness 1.5 times increased to make wiring easier (*3)

The lead wire conductor’s thickness is increased to 0.15 mm2 from 0.1 mm2 of the conventional ultra-compact photoelectric sensor. This makes it easier to perform crimpling work on the cables for better workability. In addition, the tensile strength of the crimpling area has become stronger.

Switchable output operation (*4)

The output operation switching input enables the switching of Light-ON or Dark-ON in one unit. This prevents ordering mistake and reduces the maintenance of spare parts.