DESCRIPTION
The LRF0405C eyesafe laser rangefinder module from ERDI TECH utilizes a self-developed 1535nm Diode Pump Solid State microchip laser. It offers NATO target ranging with a 2.3m × 2.3m area, achieving a range of ≥4km. The module is compact, measuring ≤48×30.5×21mm and weighing ≤32g. Features include stable laser measurement, self-testing, temperature reporting, three-target ranging, pre/post-measurement target indication, single/continuous ranging, baud rate setting, laser launch tracking, and serial port update support. Its versatility makes it suitable for laser distance measurement, UAS, optical pods, and boundary monitoring.
TECHNICAL PARAMETERS
|
Project |
Performance Indicators |
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|
Model |
LRF0405C |
|
|
Laser Wavelength |
1535±5nm |
|
|
Eye Safety |
Class Ⅰ(IEC 60825-1) |
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Divergence Angle |
~0.6 mrad |
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|
Launch Lens Diameter |
Φ8 mm |
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|
Receiver Lens Diameter |
Φ16 mm |
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Measuring Range （Reflectance 30%; visibility ≥ 8km.） |
Big Target（4m×6m) |
≥5000m |
|
|
NATO objective(2.3m×2.3m) |
≥4000m |
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|
People(0.5m×1.7m) |
≥2100m |
|
|
Drones(0.2m×0.3m) |
≥1100m |
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Minimum Range |
15 m |
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|
Ranging Frequency |
1~10 Hz |
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|
Ranging Accuracy |
±2 m |
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|
Range Resolution |
≤20 m |
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|
Precision Rate |
≥98% |
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False Alarm Rate |
≤1% |
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Number of multi-target detections |
Up to 3 targets |
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Electrical Interface |
A1257WR-S-6P |
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Supply Voltage |
DC 4.5～16 V |
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Standby power consumption |
≤1 mW |
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Average power consumption |
≤2.5 W @10 Hz |
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Peak Power Consumption |
≤7 W @12 V |
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Weight |
≤32±1 g |
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Dimension (L×W×H) |
48mm×30.5mm×21 mm |
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Operating Temperature |
-40～+70 ℃ |
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Storage Temperature |
-55～+75 ℃ |
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Impact Resistance |
1200 g/1 ms（GJB150.16A-2009） |
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Anti-vibration |
5～50～5 Hz，1 Octave range /min，2.5 g |
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Ranging Logic |
First and last target, multi-target ranging, distance selectivity |
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Activation Time |
≤950 ms |
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Data Interface |
UART（TTL_3.3V） |
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Electrical isolation |
Isolation of power ground, communication ground and structure ground |
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Reliability |
MTBF ≥ 1500h |
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Optical axis stability |
≤0.05 mrad |
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Non-parallelism between optical axis and mounting surface |
≤0.5 mrad |
|
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Protection Class |
IP67 |
|
|
ESD Class |
(Lens position) Contact discharge 6kV Air discharge 8kV |
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Electromagnetic Compatibility (EMC) |
CE/FCC Certification |
|
|
Eco-friendly |
RoHS2.0 |
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ELECTRICAL INTERFACE
User Electrical interface: UART（TTL_3.3V）
The connector model of electrical interface is A1257WR-S-6P, and the specific wiring definition is shown in the table below.
|
Pin |
Definition |
Description |
Cable color |
|
1 |
Positive power supply |
Power supply, 4.5 ~ 16V |
Red |
|
2 |
Negative power supply |
Power supply, ground |
Black |
|
3 |
POWER_ON |
Module power switch, TTL_ 3.3V level; Module on (> 2.7V), module off (< 0.3V); |
White |
|
4 |
UART_TX |
Serial port sender, TTL_ 3.3V level |
Yellow |
|
5 |
UART_RX |
Serial port receiver, TTL_ 3.3V level |
Green |
|
6 |
GND |
Serial ground |
Black |
STRUCTURAL DRAWING(In mm)
The figure below illustrates the overall dimensions and user installation interface of the ranging module. Additionally, the figure also depicts the centroid position of the ranging module.
The centroid position of the ranging module is shown in the figure below.
