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Model number
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LO-200
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Subject of detection
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Oil on water surface or liquid on floor
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Detection method
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surface scanning laser / reflected light sensor
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Laser emitter
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Semiconductor laser,wavelength (λ） 650 nm, output within 1 mW (class2)
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Mdulation laser frequency
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Approx. 50 kHz
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Scanning mechanizm
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Oscillating mirror
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Detection range
(refrractive index of scanned media)
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Model 1
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1.00 (no reflection) to 1.58
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Model 2
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1.33 (water) to 1.58
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Leak detection
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Detection cycle
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1 sec. (fixed)
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Continuous detection time (N)
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1 - 99 sec. (adjustable at 1 sec. intervals)
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Leak detection alert
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Engages when current from light sensor exceeds threshold setting for N consecutive seconds.
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Error
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Malfunction
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Engage when laser emission, laser scanning, or motor rotation fails
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Abnormal light sensing
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Engage when floating debris produces no reflection or abnormally strong reflection.
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Output
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Relay signal outputs (leak detected and error)
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Dry contact relay, form A and B; max.
load is 4 A at 250 V AC or 30 V DC.
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Current output
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Intensity of light picked up by the sensor is converted to a 0 - 20 mA current signal.
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Adjustments and displays
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Light sensing level
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Displayed with 17-LED bar indicating 0 - 20 mA
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Leak detection current threshold
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Displayed with 17-LED bar indicating 0 - 20 mA; adjusted by potentiometer dial
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Continuous detection time
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Adjusted with two rotary switches, one for 10 sec. increments and one for 1 sec. increments
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Operating lamps
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Green LED (RUN) indicates operation
Yellow LED (ERR) indicates error, red
LED (ALM) indicates leak detected.
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Power supply
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AC 100 V ± 10 % 50 or 60 Hz signal-phase, 100 VA max. 27 w (typ.)
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Operating temperature
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-10 to +50 ℃ (if water surface not frozen)
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Weatherability
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Water-tight construction for outdoor use
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Materials / surface treatments
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Cylindrical shroud
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Alumite-treat aluminum, polyurethane finish
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Display box
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Alumite-treat aluminum, polyurethane finish
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Finish color
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Japan Paint Manufacturers Association U35-85B
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External dimentions
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185 mm Φ × 535 mm H
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Weight
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Approx. 14 kg
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Attached cables
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12 m, 1.25 mm sq., 3-wire power cable
12 m, 0.5 mm sq., 6-wire shield sheath signal cable
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Installation condeitions
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Maximum 3 ° off true vertical
Use shade where necessary to avoid direct sunlight
Prevent freezing of scanned water surface
Use rain hood where necessary
Max. 3 m between detector and scanned surface
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