1. MEASURES BY MEANS OF PRECISION MECHANIC MEASURE
METAL CASTING ENGINEERING
GRADE X / SEMESTER 1 AND 2
SK-KD 017

2. COMPETENCY ACHIEVEMENT DIAGRAM
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3. COMPETENCY STANDARD AND BASIC COMPETENCY
Measures by means of Precision Mechanic Measure
BASIC COMPETENCY
Applies equipments of precision meter
Equipments doormat of comparator meter
Looks after precision equipments
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4. LEARNING AIM After learning finish
Educative participant can apply equipments of precision meter
Educative participant equipments doormat can of comparator meter
Educative participant can look after precision equipments
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5. Kinds Of Mechanic Measuring Instrument
Vernier Calipers Micrometer Dial Indicator
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6. Vernier Calipers
Vernier calipers is measuring instrument which at most applied in machinery workshops and also in industry.  
Level of correctness of common slide calipers with directing line is having scale / analog system is 0,1 mm; 0,05 mm; 0,02 mm and 1/128 Inchi.
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7. Parts Of Vernier calipers
1. External meter jaw 5. Main scale ( inchi) 2. Meter jaw in 6. Scale nonius (metric) 3. Bathometer 7. Scale nonius (inchi) 4. Main scale (metric) 8. Lock
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8. Measurement Type From Slide calipers
Outside measurement (Outside diameter, Length, Width, Thick).
Inside measurement (Inside diameter, path wide).
Depth measurement.
Step measurement.
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9. Outside measurement
Which is including outside measurement is measurement of area, external diameter, thick and job activity object length which still in slide calipers jaw coverage.
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10. Inside measurement
Which is including Inside measurement is measurement of diameter in and job(activity object path wide.
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11. Depth measurement
Depth measurement is one of way of measure plane hole depth / depth at job(activity object.
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12. Step measurement
This measurement is measurement adapted for by situation of job(activity object side to be third way of measurement before all.
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13. Vernier calipers Usage Procedure
Cleans permanent jaw and motion jaw with dust-cloth which have been dropped alcohol.
Investigates straightness of measure area at both jaws.
Does setting zero / zero setting.
Does measurement to gauge block.
Mistake value log of measure happened.
After completed cleans slide calipers especially part of permanent jaw and motion jaw.
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14. Example Of Measurement With Vernier calipers
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15. Treatment of Slide calipers
Object temperature must be equivalent with measurement space temperature.
Applies emphasis sufficiently at the time measurement.
Doesn't apply slide calipers for toy.
Before and after applied , cleans all part of slide calipers of dirt and dirt.
Before and after usage gives petroleum jelly at both its the jaws.
Save vernier calipers doesn't in position of heap.
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16. CREATED BY : MUHSHON KHOIRI & MUKLIS KUSTAMTOMO SMKN 2 KLATEN
THANK YOU
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