Vernier Caliper - Calibration Record
Rev. 0
Type of Device: Standard Used:
ID / SN:
Manufacturer: Acceptable Tolerances:
Range: Room Temp:
All readings must be in tolerance indicated above to pass. Exact num-
ber of readings may be dependent on procedure for type of tool being
Block Nominal
calibrated. Cal. By: (Responsible Notes /
Date Size Value Error OK?
person & signature) Problems
(mm) Reading 1 Reading 2 Reading 3 (mm) (mm)
(mm) (mm) (mm)
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Vernier Caliper - Calibration Record
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Example specification sheet for metrological characteristics
Maximum permissible error of indication
Measure Length, l
mm EMPE SMPE
(µm) (µm)
0 < l ≤ 50
50 < l ≤ 100
100 < l ≤ 200
200 < l ≤ 300
300 < l ≤ 400
400 < l ≤ 500
500 < l ≤ 600
600 < l ≤ 700
700 < l ≤ 800
800 < l ≤ 900
900 < l 1 ≤ 1000
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Vernier Caliper - Calibration Record
Rev. 0
Annex A
Default MPE values for metrological characteristics
Analogue scale interval or digital step
Measured Length, 0,01mm 0,02m 0,05mm
l
mm
EMPE SMPE EMPE SMPE EMPE SMPE
(µm) (µm) (µm) (µm) (µm) (µm)
0 ≤ l ≤ 50 ±20 ±30 ±20 ±40 ±50 ±50
50 < l ≤ 100 ±30 ±50 ±40 ±60 ±50 ±100
100 < l ≤ 200 ±30 ±50 ±40 ±60 ±100 ±100
200 < l ≤ 300 ±40 ±60 ±40 ±60 ±100 ±100
300 < l ≤ 400 ±40 ±60 ±40 ±60 ±100 ±100
400 < l ≤ 500 ±50 ±70 ±60 ±80 ±100 ±100
500 < l ≤ 600 ±50 ±70 ±60 ±80 ±150 ±150
600 < l ≤ 700 ±60 ±80 ±60 ±80 ±150 ±150
700 < l ≤ 800 ±60 ±80 ±60 ±80 ±150 ±150
800 < l ≤ 1 000 ±70 ±90 ±80 ±100 ±150 ±150
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Vernier Caliper - Calibration Record
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Partial Surface Contact Error: EMPE (µm)
Description: This error occurs when the measuring surfaces of the caliper do not make full contact with the object being measured.
Solution: Ensure that the measuring surfaces are clean and properly aligned with the object. Regularly check and calibrate the caliper to main-
tain accuracy.
Minimum number
Measuring range less than or of test points
equal to mm (µm)
150 5
300 6
1000 7
Over 1000 8
Shift Error: SMPE (µm)
Description: This error occurs when there is a discrepancy between the scale reading and the actual measurement due to misalignment or
wear.
Solution: Regularly calibrate the caliper and check for any signs of wear or damage. Ensure that the caliper is properly aligned during measure-
ments.
Line Contact Error:
Description: This error occurs when the measuring surfaces of the caliper make contact along a line rather than a point or surface, leading to in-
accurate measurements.
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Vernier Caliper - Calibration Record
Rev. 0
Solution: Ensure that the measuring surfaces are flat and parallel. Regularly inspect and maintain the caliper to prevent any deformation or
damage.
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