Lietz 3651-30 Zero Setting Device Compensating Polar Planimeter Drafting Design serial 15782

Lietz 3651-30 Zero Setting Device Compensating Polar Planimeter Drafting Design Serial 15782

The Lietz 3651-30 Zero Setting Device is a precision measuring instrument used in surveying and engineering applications. It is typically used for setting and verifying the zero point of surveying instruments such as theodolites and total stations, which are used for measuring horizontal and vertical angles in surveying and construction tasks.

The Lietz 3651-30 Zero Setting Device consists of a precisely machined circular plate with a graduated scale, a telescope, and a leveling bubble. The telescope is mounted on the circular plate and can be rotated around its vertical axis. The circular plate is graduated in degrees, with zero marking the reference point. The leveling bubble is used to ensure that the device is accurately leveled before taking measurements.

To use the Lietz 3651-30 Zero Setting Device, follow these steps:

1. Set up the device on a stable surface or tripod so that it is level using the leveling bubble.
2. Rotate the telescope so that the zero mark on the graduated scale aligns with the reference point or zero setting of the instrument you are calibrating.
3. Look through the telescope and align the crosshairs with a distant target.
4. Rotate the telescope around its vertical axis by 180 degrees and align the crosshairs with the same target again.
5. If the crosshairs do not align with the same target after rotating the telescope by 180 degrees, use the adjusting screws on the device to bring them into alignment.
6. Repeat steps 3-5 until the crosshairs align with the same target after rotating the telescope by 180 degrees.
7. Once the crosshairs align with the same target after rotating the telescope by 180 degrees, the zero point of the instrument is set and verified using the Lietz 3651-30 Zero Setting Device.

Advantages of using the Lietz 3651-30 Zero Setting Device include:

1. Precision: The Lietz 3651-30 Zero Setting Device is a high-precision instrument that allows for accurate and reliable zero point calibration of surveying instruments, ensuring the accuracy of subsequent measurements.
2. Ease of Use: The device is relatively simple to set up and use, with clear markings and a leveling bubble for easy leveling.
3. Time-saving: The Lietz 3651-30 Zero Setting Device can save time by quickly and accurately calibrating the zero point of surveying instruments, reducing measurement errors and the need for repeated measurements.
4. Versatility: The device can be used with various types of surveying instruments, such as theodolites and total stations, making it a versatile tool for surveying and engineering tasks.
5. Reliability: Lietz is a reputable brand known for producing high-quality surveying instruments, and the Lietz 3651-30 Zero Setting Device is known for its durability and reliability in the field.

Overall, the Lietz 3651-30 Zero Setting Device is a valuable tool for surveyors and engineers who require precise calibration of their surveying instruments for accurate measurements in various construction and surveying applications.

Lietz is a well-known brand in the field of surveying and geomatics. The company, Sokkisha Co., Ltd., was a Japanese manufacturer of surveying instruments and measuring tools. The brand name “Lietz” was associated with a wide range of surveying and geomatics equipment, including levels, theodolites, total stations, and other precision measuring instruments.

Lietz surveying instruments were widely used by professionals in the surveying, geomatics, and construction industries around the world. They were known for their accuracy, durability, and reliability, and were used in a variety of applications, such as land surveying, construction layout, mapping, and engineering projects.

It’s worth noting that Sokkisha Co., Ltd. was acquired by Topcon Corporation, another well-known Japanese manufacturer of surveying instruments and positioning technology, in 2000. Today, the Lietz brand is no longer actively used by Topcon Corporation, but legacy Lietz instruments may still be in use or available in the used market in various parts of the world.