LO-300

Laser scanning oil film detector

In the event of an oil spill, laser and video monitoring will be employed.

The LO-300 is a laser scanning oil film detector that accurately detects floating oil films by scanning the water surface with a semiconductor laser beam. Highly effective in detecting floating oil films on water surfaces or floor surfaces. Additionally, the surveillance camera unit (optional) allows the recording of video footage immediately before and after the occurrence of an alarm.

Segment: Process And Environmental

Abteilung: Water Pollution

Produktionsfirma: HORIBA Advanced Techno Co., Ltd.

Easy-to-read color LCD
With the use of a large 3.5-inch color LCD (with touch panel), visibility and operability are improved. The light-receiving level is displayed graphically in color, making it easy to see the monitoring status at a glance. Moreover, it an automatic power-off feature is incorporated for use during long periods of inactivity, ensuring energy efficiency and prolonging the lifespan of the device.

Versatility of functions
Alarm triggering can be set as either WARNING or ALARM. Additionally, accumulated operating hours of the laser module are managed, notifying the user when maintenance is recommended.

Detection height of 0.3 to 4.0 m
Improved wave resistance enables monitoring at a height of 4 m even on the surface of flowing water (our conventional unit + 1 m). Monitoring capability can increase to 6 meters on still water surfaces. Additionally, continuous line scanning is also followed in order to monitor oil film on a wide laser scanning plane.

Possible to set the size of the oil film to trigger an alarm
Alarm determination can be based on the percentage (%) of the water surface covered by the oil film. Capable of preventing false alarms triggered by causes other than oil spills, such as floating debris, iron bacteria, insects, or fish.
*This feature is effective within a detection distance of 2 meters in calm water surfaces.

Significantly extended light source life to 4 years
Through significant design improvements, the maintenance cycle has been extended to 4 years (twice as long as our previous device).
Based on cumulative operating time, the monitor displays a replacement message for the semiconductor laser. Furthermore, it can be easily installed without the need for optical axis adjustment, following the bell-shaped structure.

Surveillance camera (optional)
Water surface condition are recorded before and after an alarm is triggered. Allowing for easy determination between oil film detection and false detection, the inclusion of date and time in the captured images facilitates verification. Furthermore, remote monitoring can be enabled through the installation of LAN cables.

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))