LO-300 Laser scanning Oil Film Detector

Laser scanning Oil Film Detector

LO-300 provides early warning by on-line detection of oil leakage with a laser and a security camera (option)

LO-300 uses a laser to scan water surface or the ground to detect an oil film with high sensitivity.
LO-300 with camera unit (option) enables to record the video when LO-300 detects the alarm and stores the image captured before and after alarm signal.

Segment: Process And Environmental

Division: Water Pollution

Manufacturing Company: HORIBA Advanced Techno Co., Ltd.

Easily accessible monitor with 3.5 inch color LCD with touch panel

Various operations are available such as reflection level diagnosis, instrumental error judgment, oil film detection etc.
The LCD backlight is automatically turned off when there is no operation on the touch panel for 15 min. or more. This function prolongs lifetime of LCD and saves energy.

■3.5 inches color LCD with touch panel

Variety of functions

WARNING and ALARM, 2 alarm settings are available.
LO-300 watches the cumulative elapsed time of laser module when it reaches certain level then requests the maintenance work.

Detection distance from 0.3m to 4m

LO-300 enables oil film detection under a fast sample flow with ripples to an extent, detection distance up to 4m between the detector and the water surface is possible.
In case of the still-water surface, up to 6m is available.
The laser scanner module rotates around the optical axis thus rejecting local light scattering by the wave ripple to detect the mean intensity of the reflection from the surface.

■Functional schematic

Detection area setting is available

The area detection function performs judgment by the rate of the oil film present on the detection area.
Alarms caused by reasons other than oil leakage accident (accumulated oil film ,iron bacteria, insect, fish and others) can be excluded.

Laser life time is four years

The recommended maintenance cycle is four years (improved to double compared our existing product).
LO-300 is always watching the cumulative elapsed time of laser module, when it reaches to the limit, can display “exchange“ of a laser.
The optical device in the main body has our original hanging structure (bellshaped structure), which assures vertical installation of the instrument even with a slight inclination of the detector, allowing easy installation work.

Security Camera (Option)

LO-300 with camera unit (option) enables to record the video when LO-300 detects the alarm and stores the image on the surface captured before and after alarm signal. The image with time stamp can validate that oil leakage is true or false.

■Function of security camera

Product name		Laser scanning type surface oil detector
Model number		LO-300
Subject of detection		Oil on water surface or liquid on floor
Detection method		Surface scanning laser/reflected light sensor
Detection distance		0.3 m to 4 m (Piezometric surface Max.6 m)
Laser emitter		Semiconductor laser, wavelength (λ) 650 nm, within 1 mW output (Class 2)
Modulation laser freq		About 50 kHz
Scanning Mechanical		Oscillation mirror
Leak detection		Leak detection alert		When the state to exceed a set level of “Oil WARNING” or “OIL ALARM” passes longer than “CONT.TIME SET.”, it judges alert.
System Error		Malfunction		Engages when Temp., laser emission, laser scanning, motor rotation or power fails.
System Error		Abnormal light sensing		Engages when Upper light reception level, Lower light reception level, floating debris produces no reflection or abnormally strong reflection.
Contact output		Number of outputs		2
		Output type		No-voltage contact output
		Contact type		Relay contact; SPDT(1c)
		Output capacity		250 V AC 4 A,30 V DC 4 A
		Output 1	AL (Oil Alarm)	When “OIL ALARM” is detected, it operates.
		Output 2	ER (System Error)	When “System Error” is detected, it operates.
Transmission output		Number of outputs		1
		Output type		4 mA to 20 mA DC (Isolator)
		Load resistance		Max. 550 Ω
Setting and Indication	(Indication)	Status of water surface		NORMAL RUN
				OIL WARNING
				OIL ALARM
				HIGH LEVEL
				LOW LEVEL
				SYSTEM ERROR
		Light reception level		4 mA to 20 mA is transformed converted into Level bar of 17 Step.
		Surface Oil area		0% to 100% is transformed converted into Level bar of 10 Step.
		LOG		Max. 100 points Alarm history
	(Setting)	OIL LEVEL		Adjustment: 4 mA to 20 mA (1 mA carving) Indication: red △ marker under LEVEL bar
		AREA LEVEL		Adjustment: 0% to 90% (10% carving) Indication: △ marker under AREA bar Oil warning: Yellow △ Oil alarm: Red △
		CONT.TIME		Adjustment: 0 seconds to 999 seconds (1 second carving)
		RELAY OUT (AL)		Adjustment: MODE: Select of Oil warning or Oil Alarm TIME : 0 seconds to 99 seconds, ∞(infinity)
		LEVEL ERR.		Adjustment: “ON” or “OFF”
		MULTI-TRANS		Adjustment: “ON” or “OFF”
		OVER LEVEL		Adjustment: 4 mA to 24 mA
		DATE		Adjustment: Year/Month/Day/Hour/Minute
		CONTRAST		Adjustment: CONTRAST LEVEL of LCD
		COLOR		Adjustment: COLOR of LCD
		FACTORY		Adjustment: at the time of shipment from the factory
		Laser replacement Contact output time setting		Adjustment: 0:00 to 23:59 (unit 1 minute)
Power supply		Power range		100 V AC ±10% 50/60 Hz
		Power consumption		100 W less than
		Other		With time-lag fuse (125 V 2 A)
Operating temperature range				−10℃ to +50℃ (without freeze)
Operating humidity range				Relative humidity: 5% to 95% (without condensation)
Compatible standards		CE marking		EMC Directive: EN61326-1
Compatible standards		CE marking		Low-voltage Directive: EN61010-1, EN60825-1
Structure		Installation		Outdoor installation type
		Protection code		IP66 corresponding
		Material	Detection part	AL (Chromate processing after urethane painting)
		Material	Setting and Indication part	AL (Alumite processing after urethane painting)
		Paint color		U35-85B (Edition U of JPMA)
External dimensions				φ185 mm × H547 mm
Mass				Main body: Approx. 11 kg; Cables: Approx. 1.4 kg
Installation condition				Installation inclination: less ±3° It avoids direct sunlight and it sets it up. Frozen provisions of the surface of the water of detection are necessary. The rain avoiding provisions are necessary.
Attached cable		Power cable		1 cable (Length:5 m NA6UCL AWG16 × 3 cores (outer diameter φ10.4))
Attached cable		Signal cable		1 cable (Length:5 m NA3VCSB AWG21 (0.5 sq) × 8 cores with shield (outer diameter φ8.5))