ATEX Laser Distance Sensors
ATEX/IECEx certified Laser Distance Sensors designed to measure distances within potentially explosive atmospheres in Ex Zones (0), 1, 2, (20), 21, 22.
Description
• Exact, precise and millimeter-accurate measurement by means of time-of-flight measurement.
• Easy alignment through visible red light laser.
• Measurement range digital output: 0.05m to 30m.
• Suitable for matt, shiny and different colored (also black) objects.
• Explosion-proof, robust stainless steel housing M42x1,5 in flameproof enclosure Ex “d”.
• Analog output signal 4mA to 20mA and serial data interface RS-485.
• Optical power limitation – sensors are allowed to radiate in zone 0 and 20.
TECHNICAL DATA
Marking:
II 2(1)G Ex db [op is Ga] IIA T4 Gb
II 2(1)D Ex tb [op is Da] IIIC T135°C Db
Certificate: EU-Type Examination Certificate
Housing / Fixing brackets: Stainless steel AISI 316L
Operating temperature: -10°C up to +35°C 1 / -10°C up to +50°C 2
1 For a longer life time of the laser diode, the housing temperature of +35°C°C must not be exceeded
2 For housing temperature larger than +35°C° use the sensor in pulse mode. See please document ”Datasheet supplement”
Storage temperature range: -20°C up to +70°C
Relative humidity: 15% … 80%
Ingress protection: IP67
Measurement methods: Time-of-flight measuring
Light Source: Laser Class 2, in accordance with EN 60825-1
Maximum optical radiant intensity: <=1mW, wave length: 650nm
Response time: minimum 0.05s, maximum 4.5s
Pollution degree: 4
Utilization category: D3A42AP1
Supply voltage, Ue: 24VDC
Absolute maximum supply voltage, Um: 30VDC
Current consumption: 70mA
Maximum power dissipation: 2.4W
Typical measurement tolerance: Up to 10m: +-1mm, applies for 100% target reflectivity, in low-light ambient, Tamb : 25°C
Maximum measurement tolerance: Up to 10m: +-2mm, applies for 10% to 500% target reflectivity, in strong light ambient
Distance dependent increase of measurement tolerance: <=0.15mm/m
Analog current output, type: PNP, 4mA to 20mA, short circuit protected
Analog current outputs, operating range:
LDG-AAA-FCG-OF: 0.05m to 30m (0.05m = 4mA, 30m = 20mA)
LDG-AAB-HBA-OF: 50mm to 4000mm (50mm = 4mA, 4000mm = 20mA)
Analog current output, error indication:
3.5mA: Measurement invalid
20.5mA: Object out of measurement range
Analog current output, resolution:
LDG-AAA-FCG-OF: 1mm = 0,0005mA
LDG-AAB-HBA-OF: 1mm = 0,004mA
Analog current output, load range: 500R <= RL <= 1000R
Serial interface, type: RS 485, Format: 9600 baud, 8 data bits, 1 stop bit, Parity none, Handshaking none
Serial interface, range: 0.05m to 30m
Serial interface, resolution: 1mm
Input type: START Input, PNP compatible
Input function: ”H” +24VDC: Starts measurement, ”L” 0V: Stops measurement
Power up delay time: 500ms
Housing: M42, Material: Stainless steel 1.4404
Laser lifetime: Appr. 30’000h, typically, at a housing temperature of +20°C. During continuous operation, urgent recommendation: Apply 0V to the START-input, when no measurement is necessary
Connection cable:
LDG-AAA-FCG-OF: Length: 5m, PUR jacket, 6+PE x 0.5mm2 , shielded, non-halogen, leads numbering marked, good chemical resistance, drag chain suitable
LDG-AAB-HBA-OF: Length: 10m, PUR jacket, 6+PE x 0.5mm2 , shielded, non-halogen, leads numbering marked, good chemical resistance, drag chain suitable
Options: Cable length: Up to 100m, upon request
Accessories: 2 nuts M42 (included)
Additional information
| Certified for use in: | Zone 1, Zone 21 |
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