The LD90-450 is an economically priced, high reliability distance sensor for industrial use "reflectorless" or with retroreflecting targets. The implemented "High Penetration" technology allows its use even under conditions of bad visibility, e.g. rain, dust, fog etc.
Features Industrial distance sensor LD90-450
- Industrial Distance Sensing
- Anti-Collision Sensing on Cranes
- Level Measurement in Silos
- "High Penetration" Technology
- Internal Fault-Detection
- Analog and Serial Data Outputs
- PNP Transistor Switching Outputs
- Low Power Consumption
An electrical pulse generator periodically drives a semiconductor laser diode sending out infrared light pulses, which are collimated and emitted by the transmitter lens. Via the receiver lens, part of the echo signal reflected by the target hits a photodiode which generates an electrical receiver signal. The time interval between the transmitted and received pulses is counted by means of a quartz-stabilised clock frequency. The result is fed into the internal microcomputer which processes the measured data and prepares it for the various data outputs.
Technical data Industrial distance sensor LD90-450
| Data Interface | |||
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Serial interface | RS232 or RS422 1) Baud rate 300 Bd ... 19200 Bd 1) |
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Analog current |
4-20 mA 2), not galvanically isolated resolution 16 Bit, linearity 0.5 0/00 of full scale |
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Analog voltage | 0-10 V 2), source resistance 1 kOhm resolution 12 Bit, linearity 4 0/00 of full scale |
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Switching output | 2 x PNP transistor driver 3) built-in thermal and short-circuit protection switching current 200 mA max. switching voltage = supply voltage |
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| Power Supply | voltage range 11 - 28 Volts DC voltage ripple £ 1 Vpp built-in protection circuitry against over & under voltage and reverse polarity power consumption approx. 4 Watts |
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| Temperature Range | |||
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Operation |
-10° C to +50° C | ||
| Storage | -20° C to +60° C | ||
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| Physical Data | |||
| Case | Aluminium, colorless anodized, front and rear side rubber armoured | ||
| Dimensions | 200 x 120 x 70 mm (L x W x H) | ||
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Weight |
approx. 1.6 kg | ||
| Protection class | IP64 | ||
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