LDM300 series industrial LASER distance meters

Non-contact measurement with high immunity to external disturbances and target color

Distance measurements up to 300 meters on natural surfaces and 3000 meters with reflector

Power supply from 10 to 30 VDC with low energy consumption

Robust, compact, easy to install housing with IP 65 protection standard

Personalized parameterisation via PC with setting of limits and operating mode via serial interface

Product description

The industrial LASER distance meters of the LDM300 series are used for the distance measurement from a few meters to three kilometers. The distance measurement represents aconsolidated application for laser technology.

Industrial LASER distance meters use LASER light (pulse or modulated) to measure distances, heights, lengths, levels and positions without any contact with the object to be measured.

LASER distance meters consist of a laser emitter, optical transmitters and receivers, photosensitive diodes and sophisticated electronics with algorithms for time measurement or phase measurement. The distance measurement is obtained using different optoelectronic principles such as flight time, phase comparison and LASER pulse with "back-mixing" technology.

These methods allow singles accurate measurements to the centimeter, and measuring ranges up to several hundred meters.

Using LASER distance meters is possible measure on natural surfaces or on special reflectors obtaining fast and precise results even in harsh conditions.

The LASER distance meters work using visible or infrared optical radiation and are classified in accordance with the regulations in force in class 1 or 2 (safe classes for operation even without protective goggles).

The compact construction allows easy installation of the LASER distance meter even where space is limited or in industrial applications. All devices offer standard interfaces, analog or digital data output and customizable switching outputs.

The family of LASER LDM distance meters is particularly used for applications in the industrial sector with analog (4 - 20 mA) or digital (Ethernet, Profinet, Profibus, RS232, RS422, SSI ).

LDM301 / 302 - With RS232-422 serial interface

MAIN CHARACTERISTICS

  • Distance measurements up to 300 meters on natural surfaces and 3000 meters with reflector
  • Power supply from 10 to 30 VDC with low energy consumption
  • RS232 or RS422 serial port
  • Safe operation thanks to class 1 laser
  • Easy adjustment thanks to the visible laser beam
  • Serial data interface and analog output
  • Personalized parameterization via PC
  • Display of measured values ​​in meters, feet, inches and more thanks to the free scale
  • Robust, compact, easy to install housing, IP 65 protection standard

CodeModelDescriptionDocumentation
14-31-36
LDM301A
LDM301 LASER distance meter with RS232 serial port Product details
14-31-40
LDM302A
LDM302 LASER distance meter with RS232 serial portProduct details

Use of LASER distance meters


Position measurement on overhead traveling cranes with anti-collision function. The LASER distance meters of the LDM family allow the real-time detection of the position and distance on bridge cranes and cranes ensuring the anti-collision function. The installation of the LASER distance meters also allows the parallelism to be detected or the two lateral carriers not to synchronize. The display of the position, distance or positioning differential can also be viewed on giant monitors or it is possible to generate alarms or remote signals on the control systems.


Supervision of the railway infrastructure. Detection of the position and speed of trains and moving parts. The ability to detect distances even up to 3 km allows the detection of objects that move over large distances or that must be intercepted at great distances. The ability to work on even very different surfaces or with very high variations in color and reflectivity allows the detection of distance, position and speed even on very different objects.


Measurement and control of the position, deformation and vibrations of large structures or located at very large distances.
The ability to work on even very different surfaces or with very high variations in color and reflectivity allows the detection of distance, position and oscillation even on very different objects. The use of intelligent data loggers allows constant and continuous monitoring even over observation periods of weeks or months. Remote data transmission also allows the monitoring of multiple measurement points or multiple structures from a single observation and control point.



Measurement and control of the position, deformation and vibrations of large structures or located at very large distances.
The ability to work on even very different surfaces or with very high variations in color and reflectivity allows the detection of distance, position and oscillation even on very different objects. The use of intelligent data loggers allows constant and continuous monitoring even over observation periods of weeks or months. Remote data transmission also allows the monitoring of multiple measurement points or multiple structures from a single observation and control point.

Applications

  • Process monitoring in steelworks and rolling mills
  • Distance measurement on hot incandescent steel up to 1300 ° C
  • Level measurement in silos and heaps
  • Monitoring and positioning of cranes and transport systems
  • Position monitoring of vehicles and boats
  • Lifting system monitoring / lifting height measurement and lift positioning
  • General distance measurement and position monitoring
  • Measurement of the diameter of the rolls / reels
  • Distance measurement in mining, construction, forestry and material handling technologies
  • Detection of thickness, length and width of metal products
  • Measurement of the diameter of the steel coils
  • Detection of fast moving objects
  • Use as a proximity switch
  • 2D and 3D scanning applications
  • Precision altimeters for cranes and gantries
  • Deformation and oscillation measurement of large structures such as dams, bridges, skyscrapers
  • Monitoring of mountain slopes or critical points.
  • Measurements of slabs, blooms, billets or semi-finished products in the metallurgical industry
  • Measurement of cutting position for saws and shearing machines
  • Material feed control on presses for molding
  • Winding or unwinding material measurement on reel
  • Loop control in cutting lines and slitter
  • Speed ​​measurement on moving targets
  • Level measurement of paints and chemicals
  • Measure and control position of ships in port or on approach

General technical characteristics

The LDM series distance meters are able to measure the distance between the sensor and almost all surfaces, whether solid or liquid.

  • Wide sensing distances
  • Distance measurements up to 300 m without reflector
  • Measurements of distances up to 3000 m with a suitable reflective system or with particularly reflective targets
  • High detection accuracy
  • Optoelectronic measurement methods with latest generation optical and electronic components
  • Accuracy up to ± 1 mm
  • Constant precision independent of target distance
  • Easy integration into automation systems or data acquisition systems
  • Flexible parameterization of all working parameters and interfacing with the outside world
  • Easy adaptation to the application and type of system
  • Various interfaces suitable for industry
  • 4 mA .... 20 mA, Profibus, Industrial Ethernet, RS422, RS485, RS232
  • Reliable and robust construction
  • Aluminum enclosures with degree of protection IP 65 or IP 67
  • Integrated heating for outdoor applications
  • Use in bright outdoor environments with a high percentage of constant or diffused light
  • Safe and harmless
  • Visible and infrared laser radiation
  • Laser class 1 or 2
  • No special precautions for use or additional certifications are necessary

Integration and process control

RODER SRL can provide all the necessary support for the integration of industrial LASER distance meters in the industrial sector or in the structural control sector. All LASER distance meters can be interfaced through a physical connection (with copper or fiber optic cable) or through a wireless connection (Wi-Fi or proprietary radio link).


RODER SRL can supply standard or customized software for continuous monitoring of the physical quantities detected by industrial LASER distance meters . The use of intelligent data loggers allows the control of the physical quantities monitored even for long periods of time and the real-time communication of any anomalies, even remotely via web-servers or remote control systems.


RODER SRL can provide not only the data acquisition and archiving software but also all the hardware necessary for the realization of the final application. Single or multi-channel data acquisition units, point-to-point acquisition systems or distributed control systems are available. It is also possible to centralize data from multiple distance meters on a single control and data storage location.

Accessories

REDAM series remote display monitors for data visualization coming from LASER distance meters or from other related sensors (force sensors, deformation sensors, anemometers, tensiometers, temperature meters, linear transducers, data acquisition systems). The REDAM series monitors allow not only the visualization of data in real time but also the archiving of measurements by dividing them by acquisition date, by geographical area, by production batch or by acquisition batch.


High-quality connection cable for the LDM41A and LDM42A laser distance sensors


Wi-Fi transmission system for the remote transmission of LASER distance meter data. The wireless interface allows remote transmission of the value measured by the sensor and, if necessary, parameterization of the sensor without having direct access to the installation point of the LASER distance meter.


In some cases it is useful to reduce the signal level of the laser distance sensors to avoid measurement errors caused by an overload of the receiver diode. This depends on how strongly the target reflects the transmitted laser beam.
For the laser distance sensors of the LDM4x series, optical filters with double and quadruple attenuation are available. They are mounted directly on the optical support of the measuring instruments together with an adapter, inclined at 10%.
Two spacer rings supplied with the product facilitate the exact alignment of the inclined surface to the measuring device.
The filter glass has been equipped with a seven times higher broadband anti-reflective coating for operation in industrial environments. The additional top layer is characterized by greater hardness and water-repellent and dirt-repellent qualities, which greatly facilitate the cleaning of the gray filter.


The PHSS4x housing is used to protect the sensors of the LDM4x series from humidity and dirt. It is made of sturdy stainless steel and is perfectly suitable for outdoor use. The window which has been adapted to the laser wavelength range can be easily cleaned. The serial programming interface of the sensor is always available on an external port. The power supply and other signals are connected via cable gland to an internal terminal block. The sensor can be mounted directly in the factory. Special customized versions are available on request.


The SLS series enclosures are specially designed for use on particular LASER distance meters or on triangulation sensors for protection from dust, vapors and fumes. The presence of a compressed air pressurization duct allows the maintenance of a low operating temperature and at the same time preserves the optics of the LASER sensor from contaminants, fumes, vapors.


The LMI series enclosures are designed for the protection of LASER sensors where it is necessary not only the protection from dust or vapors but it is also necessary to maintain the temperature within a range of values ​​capable of stabilizing the behavior of the sensor even in the presence of large temperature ranges.


If the LDM4x series laser distance sensors are to be used at high ambient temperatures, the water-cooled PHSS4x-w protective enclosure is used. It protects the sensor not only from hot temperatures, but also from cold, humidity and dirt. A connection flange is provided for the programming interface. The power supply and other signals are connected via a through cable. The housing is available with optional window heating, an air purge tube and a pan / tilt support.


With the help of the mounting bracket, the measuring instruments of the LDM4x and LDM30x series can be easily and conveniently mounted on the application site. The construction of the angle facilitates the subsequent alignment of the laser beam over a range of 10 ° in a horizontal and vertical direction. With the sensor's visible laser beam, it is also possible to target remote targets. The sensor is adjusted on the bracket and fixed with the four M6 screws supplied.


The PAX series displays are extremely versatile in use and provide useful additional functions. PAXD shows analog input signals, e.g. the analog output of an LDM41A, on a five-digit display. The scale factor can be adjusted directly on the device using the keys. The display is available in a robust steel housing with IP 65 protection rating or for mounting on a switch panel. It can be supplied with additional functions, such as limit value monitoring or a serial interface.


With the LDMTool software all the laser distance sensors of the LDM series that have a serial interface can be conveniently parameterized from the PC. A simple user interface displays all the available parameters of the currently connected sensor and all measured values ​​and the status of the different output signals. A terminal window for direct communication has been implemented. In addition, a logging function (Log Window) and a graphical display (distance-time diagram) are available with the full version of LDMTool.


The PT4x-AIR protection tube has been developed to protect the optics of the laser distance sensors of the LDM4x series from dirt and water in industrial environments. It is screwed directly onto the measuring instrument. Compressed air can be brought into the tube through the side fitting. The continuous air flow that develops keeps dirt particles and water drops away from the lens system.

Data connections

The industrial LASER distance meters of the LDM family can be configured with an Ethernet or Ethernet / IP communication interface for complete integration into latest generation automation systems or "PC based" IT systems.


The industrial LASER distance meters of the LDM family can be configured with RS232 or RS422 communication interface for direct connection to PLC or data acquisition cards based on microprocessors or microcontrollers. The RS422 communication line allows remote connection of data acquisition systems even in the presence of severe environmental disturbances.


The industrial LASER distance meters of the LDM family can be configured with a PROFINET type communication interface for direct connection on production lines and systems that are based on the PROFINET communication standard.


The industrial LASER distance meters of the LDM family can be configured with a PROFIBUS communication interface for direct connection on production lines and systems that are based on the PROFIBUS communication standard.