Transcript
Apolarm M TM
laser type oil film detector LMD-2000
Examples of installation ■ Manhole
ISO9001 Certified JQA-QMA2894
■ Narrow drainage ditch
■ Wide drainage ditch
Dimensional drawings ■ Installation stand (optional)
■ LMD-2000 detector unit
Anchoring holes 3-φ12
85
4-M8
100
60
TM
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450
4-M8 tap
520 460 200 200 380
φ185
200 460 520
/0 +
50
100
90x7=630
100
60
123
940
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255
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60
16-φ9
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2007−1P
Apolarm M TM
laser type oil film detector LMD-2000
The Apolarm™ M oil film detector LMD-2000 uses a laser to scan water surfaces to detect a film of oil. Because oil is more reflective than water, the intensity of light reflected off of oil will be greater than that reflected off of the water surface. The LMD-2000 detects floating oil by sensing the difference in the intensity of reflected light. Compared with spotlight-based systems, this enables more reliable operation with water surface level fluctuations, and greater distance between the water surface and the detector.
Power cable AC100V
Specifications Model number Subject of detection Detection method Laser emitter Scanning mechanism Operating modes Adjustments & Settings
GND
Error
Signal cable ＡＬ
Laser beam
ＡＬ ＥＬ
Oil alarm
ＥＬ
Error
Output
＋Ｓ −Ｓ
0∼20 mA output
ＳＧ
Displays
Water
LMD-2000 functional schematic
Features ・Usable with large water level fluctuation The laser scanning will detect oil on water surfaces between 30 cm and 3 m from the detector, enabling use where there are surface waves or water level fluctuations. ・Avoiding false alarms False alarms due to waves or reflective floating matter can be avoided by adjusting the continuous detection time. ・Resistance to interference from ambient light Modulated light and a band-pass optical filter are used to eliminate interference from sunlight and other ambient. ・Flexible application In addition to detection of a film of oil or other liquid on water surfaces, the unit may be used for detection of oil, water, or other liquid on dry surfaces. ・Easy to maintain No adjustment necessary when the scanner unit is replaced. ・Easy to install The optical module is emplaced on a free-hanging assembly so that the optical axis corrects itself to true vertical and does not require realignment if the unit shifts after installation.
Power supply Operating temperature Weatherability Materials/surface treatments
External dimensions Weight Attached cables Installation conditions
LMD-2000 Please inquire for explosion-proof model LMD-2000EX Oil on water surface or liquid on floor Surface scanning laser/reflected light sensor Semiconductor laser, 1 mW output Oscillating mirror Mode 1 For scanning dry surfaces Mode 2 For scanning water surfaces Setting range 4-20 mA The factory setting is 7 mA Detection time 1-99 sec The factory setting is 10 sec. Leak detection alert Engages when current from light sensor exceeds the threshold setting and the oil detection continues more than duration time setting Malfunction Engages when laser emission, laser scanning, or motor rotation fails Abnormal light sensing Engages when floating debris produces no reflection or abnormally strong reflection in mode2 Relay signal outputs Dry contact relay, form A or B; leak detected and error max. load is 5 A at 250 V AC or 24 V DC Current output Intensity of light picked up by the sensor is converted to a 0-20 mA current signal Light sensing level Display with 17-LED bar indicating 0-20 mA; adjusted by potentiometer dial Setting Adjusted with two rotary switches, one for 10 sec. increments and one for 1 sec. increments Operating lamps Green LED (RUN), operation Yellow LED (ERR), error Red LED (ALM), leak detected AV 100 V ±10%, 50 or 60 Hz single-phase, 100 VA max. -10 to +50℃ Water-tight construction for outdoor use Cylindrical shroud Alumite-treated aluminum, polyurethane finish Display box Finish color Japan Paint Manufacturers Association U35-85B 185 mmφ×535 mm H ∼ kg 14 12 m, 1.25 mm sq., 3-wire power cable 12 m, 0.5 mm sq., 6-wire shielded sheath signal cable 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
Notes: ･ Please refer to the Owner’ s Manual for instructions on handling and use. ･ Information in this brochure, including product specifications, is subject to change without notice. ･ Actual color of the product may differ from that shown in the photo.
