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LM80 Intermediate Range Laser Level Transmitter
Brand: ABB GroupBased on pulsed laser technology, the LM80 embodies speed and accuracy in a single, easy to use and install product.
Whether measuring a few meters into the confined space of a crusher, or to the bottom of the tallest silo, the LM80 with its laser pointer and long range is the plug-and-play solution to level measurement.
The LM80 features advanced timing and sophisticated signal processing for pinpoint accuracy at up to 100 m (330 ft.) for level applications and up to 150 m (500 ft.) for positioning applications.
Features- Maintenance free, non-contact continuous level sensor
- Range up to 100 m (330 ft) for level applications
- Range up to 150 m (500 ft) for positioning applications
- Easy and intuitive setup
- No calibration required
- Continuous level monitoring for granular solid materials and opaque liquids
- Measures solids and opaque liquids at any angle
- Last Pulse Detection for Measurement with Light and Moderate Dust
- Built-in laser pointer for accurate alignment in narrow or tall vessels
- Auto-ranging to measure all levels
- Available non condensing heated optics prevent condensation issues
- No Beam Divergence = No False Echoes
- Rugged and Robust Aluminum Enclosure
- CSA, ATEX and IECEx potentially explosive atmosphere ratings
Specifications
Brand
Range
- 0.5 m (1.5 ft) to 30 m (100 ft) - dark colored surfaces
- 0.5 m (1.5 ft) to 100 m (150 ft) - light colored surfaces
- 0.5 m (1.5 ft) to 150 m (500 ft) - reflective targets in positioning applications
Resolution
- ± 10 mm (0.4 in)
Accuracy
- ± 30 mm (1.2 in)
Update Rate
- 3 Readings per second (Max.), 1 Reading per minute (Min.)
Operating Temperature
- -40° C to +60° C (-40° F to +140° F)
- -40° C to +45° C (-40° F to +113° F) with Non-Condensing option (heated lens option (AC and SC))
Survival Temperature
- -40° C to +80° C / -40° F to +176° F
Pressure
- 1 bar
Analog
- 4-20 mA, NAMUR compliant Non-Isolated and self Powered
Digital (Relay)
- 2 SPST Relays: 0.5 A at 120 Vac, 0.25 A at 250 Vac, 1 A at 24 Vdc, 0.5 A at 60 Vdc
Communication
- Standard Male DB9 Connector - RS-232 for testing, troubleshooting and configuration 19200 baud, 8 data bits, 1 stop bit, no Parity, no flow Control
Voltage
- 24 Vdc typical (18 to 32 Vdc)
Current
- 0.4 A peak, 0.2 A Continuous
- 0.52 A peak, 0.32 A Continuous with Non-Condensing optics
Base Plate Diameter
- Flange - 140 mm (5.51 in)
- Tri-Clover - 120 mm (4.72 in)
Length
- Flange - 172 mm (6.77 in)
- Tri-Clover - 166 mm (6.54 in)
Weight
- 316 Stainless Steel Enclosure - 4.2 kg (9.26 lbs)
- Aluminum Enclosure - 1.6 kg (3.53 lbs)
- Aluminum Enclosure with Tri-Clover - 2.2 kg (4.85 lbs)
Enclosure Material
- Powder-Coated Aluminum Standard, 316 Stainless Steel option
O-Ring Seal Material
- Buna-N (Nitrile Rubber)
Mounting / Process Connection
- Tri-Clover - 316 Stainless Steel plate with Seal groove
- Flange - 4 holes, 8.5 mm (0.33 in) diameter on 120 mm (4.72 in) diameter Circle
Total Optical Aperture
- 90 mm (3 in)
Measuring Laser Lens Diameter
- 25 mm (1 in)
Receiver Lens Diameter
- 50 mm (1.97 in)
Lens Material
- Acrylic
Lens Impact Resistance
- Impact tested at 4 joule
Beam Divergence
- < 0.3°
Beam Direction
- 90° ± 1° from Mounting flange
Measuring Laser
- 905 nm near infrared pulsed semiconductor laser
- 12 mW Average Power output
- 20 W peak Power output
Pointing Laser
- 635 nm Red semiconductor laser
- 3 mW Continuous
Measuring Laser Life Expectancy
- 25 Years typical MTBF
Purge Air Flow
- Must be oil free dry Air recommended flow between 0.5 and 4 L/minute Max. pressure 5.5 bar (80 psi)
Purge Fitting
- 1/8 NPT
Enclosure Rating
- IP66/NEMA 4X (Dust proof, can be washed down with High Pressure Hose)
