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Third class standard metal wire ruler (Geneva ruler)
Product Introduction: Putian Tongchuang produces and supplies third class standard metal wire rulers, which are used for verifying the indication erro
Product details
Product Overview:
Putian Tongchuang produces and supplies third class standard metal wire rulers,Used for verificationUsed for verifying the indication error of steel rulers.Measurement range 0-1000mm，Resolution0.2mm.
This standard ruler is a rigid ruler with markings on two inclined surfaces at a 45 ° angle to the bottom, both sides of which are engravedA 1020mm engraved line, with one side having a division value of 0.2mm and the other side having a division value of 1mm. There is a flange shaped guide rail on the back of the third order line ruler, and two 7x magnifying glasses can move along the measurement axis on the guide rail to enlarge the line spacing between the third order line ruler and the measured ruler. There is a measuring range of (-30~+50) ℃ embedded in the back flange of the rulerThe mercury thermometer with a temperature range of (-35~+45) ℃ has a division value of 0.5 ℃.
Indicator parameters:
measuring range
0～1000mm
Instrument division value
0.2mm
Instrument indication error
±0.05mm
Instrument dimensions
1050mm in length, 38mm in width, and 63mm in height
Instrument weight
3Kg
Full set weight
About 5.5Kg
The division length of a meter ruler
1020mm
The division value of a meter ruler
The two inclined surfaces are 1mm and 0.2mm respectively (can be estimated to read up to 0.02mm)
Magnifying power of magnifying glass
7x
Scale division value of thermometer
0.5 degrees
The straightness of the inclined edge of the meter ruler
≤0.1
Operation steps:
1. Before use, check if all parts of the metal wire ruler are intact.
2. Take out the metal wire ruler from the packaging box (note: do not touch the ruler with your hands). Place it on a flat plate and keep it isothermal with the tested object.
3. Place the engraved line of the test piece on the same plane as the engraved line surface of the metal standard line ruler.
4. Align the end face of the test piece's engraved line with the end face of the metal standard line ruler's engraved line.
5. Align the tested component with the longitudinal direction of the standard metal wire ruler.
6. Use the magnifying glass on the standard ruler to read the difference between the distance between the standard ruler's engraved lines and the distance between the inspected ruler's engraved lines.
7. After verification, clean with 120 # gasoline, dry and place in the box.
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