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Smart General-Purpose Displacement Meter: Simple Yet Precise
Displacement monitoring is often overcomplicated in geotechnical engineering. In fact, many times, all a project needs is an instrument that is reliable, easy to use, and can continue to give stable readings. Kingmach's universal smart displacement meter is designed for this scenario. It doesn’t have fancy features, but it delivers measurement accuracy and long-term stability. Whether it is used on slopes, tunnels or dams, its installation, operation and maintenance are relatively straightforward, and its output signals are compatible with mainstream acquisition systems. For field engineers, this means less debugging time and more confidence in the data. The following content will detail its features and common problems.
Technical Detail
The core of the universal intelligent displacement meter is a set of market-proven sensing units with built-in signal conditioning modules. Standard measuring ranges are available from 50mm to 200mm, with linear accuracy typically better than 0.1% FS. The output signal supports RS485 digital interface or 4–20mA analog, which can be directly connected to the existing automated monitoring network without the need for additional conversion modules. The shell protection reaches IP67, so there is no problem if it is buried in a humid inclinometer or in an open-air environment. \n\nKingmach is a brand that has been In geotechnical instruments for many years. The main feature is the product line width, and the range, cable length or installation base can be adjusted according to project requirements. We have projects in use at home and abroad, and our technical team can cooperate to solve on-site installation and debugging problems. Spare parts and maintenance are also guaranteed, so there will be no problem of finding someone to repair the equipment if it breaks down. \n\nIn actual use, the zero drift and temperature drift of the displacement meter are relatively ideally controlled. For long-term monitoring of the convergence deformation of a slope or tunnel, the data curve is basically smooth and will not be frequently recalibrated. It has a wide power supply range and can work normally from 9-30V DC, adapting to solar power supply systems. Installation accessories are also included with the goods and can be installed on-site right out of the box.
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Smart Flexible Displacement Meter JMDL-24XXAT
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Smart Formwork Displacement Meter/ Steel Wire Displacement Meter JMDL-49XXAT
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Yes, the sensor body has a protection level of IP67. Short-term immersion in water will not affect the work. If it is a long-term immersion or a situation with high water pressure, you can customize a version with a higher protection level, or install a sealed protective tube.
Both are stable, depending on the habits of the acquisition equipment. RS485 is suitable for digital bus, multiple sensors can be hung on one line, and the distance is long. 4-20mA has strong anti-interference and simple wiring, suitable for local display or PLC direct connection. We recommend it based on the user's system matching.
Generally yes. The standard is 200mm Within, but the long range involves guide and rebound design, which requires evaluation of the structure. If there is a batch demand, we provide a customized solution, which takes about 4-6 weeks.
Under normal use and maintenance, the sensor element has a lifespan of more than 10 years. It is recommended to do an on-site comparison calibration every year, and send it back to the manufacturer for retesting if the data is abnormal.
LVDT has high accuracy but small range and fragile structure, so it is suitable for laboratory or precision parts measurement. This general-purpose displacement meter is more robust, has a large range, is suitable for field rock and soil deformation, has better earthquake resistance and temperature adaptability, and is lower in cost.
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