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.

Oddělení: Water Pollution
Výrobní společnost: 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 nameLaser scanning type surface oil detector
Model numberLO-300
Subject of detectionOil on water surface or liquid on floor
Detection methodSurface scanning laser/reflected light sensor
Detection distance0.3 m to 4 m (Piezometric surface Max.6 m)
Laser emitterSemiconductor laser, wavelength (λ) 650 nm, within 1 mW output (Class 2)
Modulation laser freqAbout 50 kHz
Scanning MechanicalOscillation mirror
Leak detectionLeak detection alertWhen the state to exceed a set level of “Oil WARNING” or “OIL
ALARM” passes longer than “CONT.TIME SET.”, it judges alert.
System ErrorMalfunctionEngages when Temp., laser emission, laser scanning, motor rotation or power fails.
Abnormal light sensingEngages when Upper light reception level, Lower light reception level, floating debris produces no reflection or abnormally strong reflection.
Contact outputNumber of outputs2
Output typeNo-voltage contact output
Contact typeRelay contact; SPDT(1c)
Output capacity250 V AC 4 A,30 V DC 4 A
Output 1AL (Oil Alarm)When “OIL ALARM” is detected, it operates.
Output 2ER (System Error)When “System Error” is detected, it operates.
Transmission outputNumber of outputs1
Output type4 mA to 20 mA DC (Isolator)
Load resistanceMax. 550 Ω
Setting and Indication(Indication)Status of water surfaceNORMAL RUN
OIL WARNING
OIL ALARM
HIGH LEVEL
LOW LEVEL
SYSTEM ERROR
Light reception level4 mA to 20 mA is transformed converted into Level bar of 17 Step.
Surface Oil area0% to 100% is transformed converted into Level bar of 10 Step.
LOGMax. 100 points Alarm history
(Setting)OIL LEVELAdjustment: 4 mA to 20 mA (1 mA carving)
Indication: red △ marker under LEVEL bar
AREA LEVELAdjustment: 0% to 90% (10% carving)
Indication: △ marker under AREA bar
Oil warning: Yellow △
Oil alarm: Red △
CONT.TIMEAdjustment: 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-TRANSAdjustment: “ON” or “OFF”
OVER LEVELAdjustment: 4 mA to 24 mA
DATEAdjustment: Year/Month/Day/Hour/Minute
CONTRASTAdjustment: CONTRAST LEVEL of LCD
COLORAdjustment: COLOR of LCD
FACTORYAdjustment: at the time of shipment from the factory
Laser replacement
Contact output time setting
Adjustment: 0:00 to 23:59 (unit 1 minute)
Power supplyPower range100 V AC ±10% 50/60 Hz
Power consumption100 W less than
OtherWith time-lag fuse (125 V 2 A)
Operating temperature range−10℃ to +50℃ (without freeze)
Operating humidity rangeRelative humidity: 5% to 95% (without condensation)
Compatible standardsCE markingEMC Directive: EN61326-1
Low-voltage Directive: EN61010-1, EN60825-1
StructureInstallationOutdoor installation type
Protection codeIP66 corresponding
MaterialDetection partAL (Chromate processing after urethane painting)
Setting and
Indication part
AL (Alumite processing after urethane painting)
Paint colorU35-85B (Edition U of JPMA)
External dimensionsφ185 mm × H547 mm
MassMain body: Approx. 11 kg; Cables: Approx. 1.4 kg
Installation conditionInstallation 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 cablePower cable1 cable (Length:5 m NA6UCL AWG16 × 3 cores (outer diameter φ10.4))
Signal cable1 cable (Length:5 m NA3VCSB AWG21 (0.5 sq) × 8 cores with shield (outer diameter φ8.5))

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