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.

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 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
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
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))

Request for Information

Do you have any questions or requests? Use this form to contact our specialists. * These fields are mandatory.