Special 45 degree angle ruler for zero position error calibration of level ruler

1、 Product Introduction:

SYPZ-45 specialized 45 degree angle ruler (for zero position error calibration of level ruler) is produced and manufactured by Ningbo Shenyan Measuring Instrument Testing Instrument Co., Ltd. It is used to calibrate the zero position error of the 45 degree angle position of the level ruler (with engraved horizontal bubbles). *According to the technical requirements of JJF1085-2002 leveling ruler calibration specification, SYPZ-45 special 45 degree angle ruler is used as a standard instrument for 45 degree angle error and is a high-precision 45 degree angle special measuring tool.Special 45 degree angle ruler for zero position error calibration of level rulerMade from high-quality stone materials through mechanical processing and manual precision grinding. Black luster, precise structure, uniform texture, good stability, high strength, high hardness, able to maintain high precision under heavy load and general temperature, and has the advantages of non rusting, acid and alkali resistance, wear resistance, non magnetization, and invariance.

2、 Testing method:

Read a1 from one end of the bubble, then turn the level ruler 180 degrees and place it in the original position on the flat plate. Record a2 from the other end of the bubble based on the first reading. Half of the difference between the two readings is the zero position error.

IIISpecial 45 degree angle ruler for zero position error calibration of level rulerTechnical Indicators:

1. Working face length: 500mm/700mm optional

2. Flatness of working face: ≤ 0.02mm

3.450 degree angle deviation: ± 2 '

4. Specific gravity: 2970-3070kg/㎡

5. Strong abrasion rate: 1.27-1.47N/m2

6. Compressive strength: 245-254N/m ²

7. Linear expansion coefficient: 4.6 × 10~6 ℃

8. Water absorption rate: 0.13%

9. Shore strength: above HS70

10. The installation level should not exceed 0.1/1000mm

4、 Level calibration items and testing equipment:

1. Zero position error calibration of horizontal position - SYPT-1 marble ruler/flat plate

2. Zero position error calibration of vertical position - SYPZ-1 dedicated plane parallel column

Calibration of Zero Position Error at 3.45 Degree Position - CYPZ-45 Special 45 ° Angle Gauge

4. Calibration of Dividing Value Error - SY-SPC-2 Level Gauge Calibration Device