Electronic level: description, specifications, instructions

To determine the difference in height between points in the construction area, a special device is used - a level. Modern devices are equipped with many additional functions, a display and memory for recording measurements. The article describes the descriptions of electronic levels and their technical characteristics.

Description of the technique

Electronic levels are popular because they allow you to automate the measurement process. Today, only foreign manufacturers are engaged in their production. Modern models are divided into the following types:

• Digital electronic goniometer. This is a device that has a built-in LCD. On it you can see the measurement of the angle of inclination of the surface. Data is displayed without additional settings.
• Digital electronic level. Such devices are also equipped with a display. Additionally, the level can have a laser beam or a built-in water level.
• Combined digital device. Such a device combines the functions of a protractor and a digital level. The level provides more efficient and faster measurements.

The principle of operation of the levels is based on recording readings with the help of rails that are installed at different heights. Accordingly, the difference in readings indicates an excess between points.

The devices themselves according to GOST 10528-90 are divided into technical, accurate and high-precision.

Specifications

When choosing an electronic level, builders pay attention to the technical parameters of the device. According to GOST 23543-88, Appendix 2, a list of the main characteristics of the levels includes:

• Indications of the purpose of the device (error and measurement range, operating temperature, number of functions, timing of reading, magnification and diameter of the pupil of the telescope, dimensions).
• Indicators of the reliability of the device (setting the calendar of the operating life, full service life, coefficient of technical use and others).
• Profitability indicators (mass of the device and power consumed by it).
• Angular field of view of the pipe.
• The price of the division of the level.
• The diameter of the pupil of the telescope.
• The range of work and the error in the self-installation of the compensator.
• Quality of decorative coatings.
• Range finder coefficient (altimeter).

Using the appliance

Many beginners do not know how to use the electronic level. Below is a step-by-step guide.

How to use the level correctly:

1. Set up a tripod. To do this, loosen the mounting screws on each leg of the tripod. Each support is extended to the required length. Expose the upper part of the tripod strictly to a horizontal position and tighten the screws on the legs. For precise adjustment, many devices are equipped with a smooth corrective fastening of each leg.
2. Carry out the installation of the level. The leveling pipe is mounted on a tripod and fixed with screws. Next, prepare the level sensor. To do this, rotate the adjustment screws until the bubble levels are placed in the central position relative to the lines drawn on them. For convenience, tuning is carried out in turn "windows", setting the level of the next, taking into account the previous one.
3. Focus adjustment of the optical-mechanical unit. It is carried out to align the telescope with the view of the operator. The device is pointed at a large and well-lit subject and continues to adjust until the thread net is displayed as clearly as possible. Then the same procedure is carried out with slats in less lit places.
4. Measurement and recording of observations. After horizontal installation of equipment and its settings, rails are installed in front and behind the level. First, the device is pointed at the black marks of the rear rack and the values ​​for the rangefinder and middle strokes are recorded. Then they focus on the front rail and fix the average value relative to the red side.
   

TOPCON Product Overview

Topcon is a Japanese leader in the production of surveying equipment. All devices can be divided into optical and digital levels.

Digital options provide a vivid picture and measurement accuracy. Devices are resistant to vibration and shock. They are equipped with a magnetic compensator, which allows you to take measurements on the site where the heavy equipment works.

Surveys of electronic levels are presented in the table below.

Sokkia Instrument Overview

Sokkia electronic levels are professional instruments for efficient elevation detection. They are distinguished by proprietary enlightened optics and high speed. All measurements are performed automatically and stored in the device memory.

They also use special Wave-and-Read stabilization technology. The following features are available in levels:

• conducting single measurements;
• repeated measurements;
• use of the tracking mode for the staff;
• inclusion of the stabilization mode;
• calculation of the average value.

Detailed instrument specifications are shown in the table below.

Trimble Instrument Overview

Levels of the American company Trimble are designed to accurately determine the level of elevation and height difference on the ground. The devices have a hardened case, which allows you to use them in almost any weather.

They are also equipped with many additional features and roomy internal memory. The backlight of the display allows you to work even in low light.

They differ in their long-term performance without recharging, maximum performance and high accuracy. Measurements are made automatically using powerful software.

Detailed characteristics of Trimble electronic levels are presented in the table below.

Leica Product Overview

Electronic levels of the Leica company (China) are presented in a wider assortment than analogs. They are designed for different types of work. Each device is equipped with a processor and roomy memory. The disadvantage is the weak housing of the device, the level requires careful handling.

Their feature is to minimize human participation in the measurement process and maximum productivity.

Detailed characteristics of the devices are presented in the table below.

We can say that the electronic level is an indispensable assistant to the modern builder. These are high-precision, automated instruments that have their own software and help the owner to take the necessary measurements in a short time.