Dimension
Calibration of dimension measuring instruments is a highly scientific and technical process that involves precise measurement and analysis techniques. The instruments, such as micrometers, calipers, height gauges, and dial indicators, are commonly used in the manufacturing and engineering industries to ensure precision and accuracy in measurement. The accuracy of the instrument is affected by various factors, including the measuring range, resolution, and repeatability, as well as environmental conditions such as temperature and humidity. Calibration procedures and appropriate calibration standards must be selected carefully to ensure that accurate measurements are obtained. The calibration process often involves adjustments to the instrument to improve its accuracy, followed by re-verification to confirm the instrument's calibration status. Regular calibration of dimension measuring instruments is essential to maintain accurate and consistent measurements and to comply with regulatory requirements.
Instruments Which Can Be Calibrated:
| Sl | Parameter*/Device under Calibration | Group | Range(s) of Measurement | CMC | Calibration Performed At |
|---|---|---|---|---|---|
| Recommended by Assessor | |||||
| 1 | Bevel Protractor (L.C.: 1 min & coarser) | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 ° to 90 ° | 0.90 | PermanentFacility |
| 2 | Bore Gauge (For Transmission Error)L.C : 0.001 mm&coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | Upto 1 mm | 0.935 | PermanentFacility |
| 3 | Calipers (Vernier/digital/dial) L.C:0.01 mm&coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 600 mm | 16.5 | PermanentFacility |
| 4 | Calipers (Vernier/digital/dial) L.C:0.01 mm&coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 300 mm | 16.5 | PermanentFacility |
| 5 | Coating Thickness Gauge L.C.:0.1µm and Coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0.01 mmto 2 mm | 3.32 | PermanentFacility |
| 6 | Combination Set (L.C.: 1 degree) | Dimension (Basic Measuring Instrument, Gauge etc.) | 0-90  ° to 90-0  ° | 35 | PermanentFacility |
| 7 | Degree Protractor (L.C. : 1 degree & coarser) | Dimension (Basic Measuring Instrument, Gauge etc.) | 0-90 ° to 90-0 ° | 35 | PermanentFacility |
| 8 | Dial Snap Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 5 mmto 150 mm | 6 | PermanentFacility |
| 9 | Dial Thickness Gauge L.C : 0.001mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 1 mm | 0.63 | PermanentFacility |
| 10 | Dial Thickness Gauge L.C : 0.01mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 20 mm | 5.8 | PermanentFacility |
| 11 | External MicrometerL.C : 0.001 mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 150 mm | 2.3 | PermanentFacility |
| 12 | External MicrometerL.C : 0.01 mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 150 mmto 600 mm | 8.8 | PermanentFacility |
| 13 | Feeler Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 0.05 mmto 3 mm | 1.6 | PermanentFacility |
| 14 | Height Gauge (Vernier/digital/dial) L.C:0.01 & coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 300 mm | 12.8 | PermanentFacility |
| 15 | Height Gauge (Vernier/digital/dial) L.C:0.01 & coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 600 mm | 17 | PermanentFacility |
| 16 | Lever Dial L.C :0.001 mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 0.14 mm | 0.9 | PermanentFacility |
| 17 | Lever Dial L.C :0.01 mm &coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 1.6 mm | 6 | PermanentFacility |
| 18 | Measuring Pin/Thread Measuring Wire | Dimension (Basic Measuring Instrument, Gauge etc.) | 0.17 mmto 20 mm | 0.71 | PermanentFacility |
| 19 | Measuring Scale | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 1000 mm | 290 | PermanentFacility |
| 20 | Measuring Tape | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mto 50 m | 290 sqrtL (where L is in Mtr) µmto | PermanentFacility |
| 21 | Micrometer Setting Standard | Dimension (Basic Measuring Instrument, Gauge etc.) | 300 mmto 575 mm | 5.7 | PermanentFacility |
| 22 | Micrometer Setting Standard | Dimension (Basic Measuring Instrument, Gauge etc.) | 25 mmto 300 mm | 2.8 | PermanentFacility |
| 23 | Pie Tape | Dimension (Basic Measuring Instrument, Gauge etc.) | 1 mto 50 m | 290 sqrtL (where L is in Mtr) | PermanentFacility |
| 24 | Plain Plug Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 2 mmto 225 mm | 1.3 | PermanentFacility |
| 25 | Plain Ring Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 3 mmto 200 mm | 3.2 | PermanentFacility |
| 26 | Plain Taper Gauge ( Taper Angle) | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 ° to 60 ° | 46 | PermanentFacility |
| 27 | Plain Taper Gauge (Major diameter, Minor diameter) | Dimension (Basic Measuring Instrument, Gauge etc.) | 4 mmto 60 mm | 2.83 | PermanentFacility |
| 28 | Plunger Dial L.C :0.001 mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 10 mm | 1.3 | PermanentFacility |
| 29 | Plunger Dial L.C :0.01 mm& coarser | Dimension (Basic Measuring Instrument, Gauge etc.) | 0 mmto 50 mm | 6 | PermanentFacility |
| 30 | Radius Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | R1 mmto R 40 mm | 6.5 | PermanentFacility |
| 31 | Snap Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 5 mmto 150 mm | 1.6 | PermanentFacility |
| 32 | Spirit Level / Electronic Level (L.C.0.02 mm/m)300 mm Base Length. | Dimension (Basic Measuring Instrument, Gauge etc.) | Upto +/- 0.10 mm | 10 | PermanentFacility |
| 33 | Taper Scale / Taper Bore Gauge/ Taper Scale/ Taper Bore Gauge | Dimension (Basic Measuring Instrument, Gauge etc.) | 4 mmto 60 mm | 58 | PermanentFacility |
| 34 | Test Sieves | Dimension (Basic Measuring Instrument, Gauge etc.) | 0.032 mmto 50 mm | 7.5 | PermanentFacility |
| 35 | Test Sieves | Dimension (Basic Measuring Instrument, Gauge etc.) | 50 mmto 125 mm | 32 | PermanentFacility |
| 36 | Thickness Foils | Dimension (Basic Measuring Instrument, Gauge etc.) | 10 µm to 2 mm | 2.3 | PermanentFacility |
| 37 | Thread Pitch gauge Angle measurement | Dimension (Basic Measuring Instrument, Gauge etc.) | 55 & to 60 Degree | 4.1 | PermanentFacility |
| 38 | Thread Pitch gauge Pitch measurement | Dimension (Basic Measuring Instrument, Gauge etc.) | 0.4 mmto 6 mm | 8.1 | PermanentFacility |
| 39 | Thread Plug Gauge (effective Dia) | Dimension (Basic Measuring Instrument, Gauge etc.) | 3 mmto 225 mm | 1.33 | PermanentFacility |
| 40 | Thread Ring Gauge (effective Dia) | Dimension (Basic Measuring Instrument, Gauge etc.) | 4 mmto 100 mm | 3.07 | PermanentFacility |
| 41 | Profile Projector/Optical Microscope/Tool Makers Microscope / Vision Measuring M/C (L.C : 0.0001mm& coarser) Linear X,Y Axis | Dimension (Precision Instruments) | 0 mmto 200 mm | 5.8 | Site Facility |
| 42 | Profile Projector/Optical Microscope/Tool Makers Microscope / Vision Measuring M/C (L.C : 0.0001mm& coarser) Magnification | Dimension (Precision Instruments) | 10 X to 100 X | 0.6 | Site Facility |
| 43 | Profile Projector/Optical Microscope/Tool Makers Microscope / Vision Measuring M/C (L.C : 0.0001mm & coarser) Angular | Dimension (Precision Instruments) | 0 ° to 90 ° | 2.7 | Site Facility |