Calculating Accuracy for a Multimeter

A

akmal122g

#1
Hello. I want to calculate accuracy for a multimeter. The details are as follow

Set value source = 50.00 V
Measured value (multimeter) = 50.1
Resolution (multimeter) = 0.1
Accuracy (multimeter) = 5% + 2 digit

To calculate the accuracy for calibration, is measured value or set value from source is taken into account.
 
Elsmar Forum Sponsor

dgriffith

Quite Involved in Discussions
#2
Hello. I want to calculate accuracy for a multimeter. The details are as follow

Set value source = 50.00 V
Measured value (multimeter) = 50.1
Resolution (multimeter) = 0.1
Accuracy (multimeter) = 5% + 2 digit

To calculate the accuracy for calibration, is measured value or set value from source is taken into account.
The accuracy--limits of error--of the multimeter are 5% of reading + 2 digits = 2.5 V + 0.2 V = ?2.7 V.

For a calibration where the 50.00 V set value source is taken as true value, and the estimated error of the multimeter will be established, then both source and measured are taken into account. Ideally we would like more information about the 50.00 V source, and I provided a nominal 5-sample random component for the meter reading, plus the meter resolution.

Parameter Name:
Multimeter
Nominal Value: 50 V
Computed Mean Value: 50.100 V
Computed Mean Deviation: 0.100 V ? 0.268 V with 95.00% Confidence

So, the (0.1 ?0.268) V is the error plus or minus the range that the error may truly lie at 95% conf. This is within the error limits (accuracy) of 2.7 V for the multimeter.
Hope this helps.
 
Thread starter Similar threads Forum Replies Date
M Lean: Conducting Capacity Study, calculating Cycle times on laser cutting machines Lean in Manufacturing and Service Industries 2
A Calculating Carbon Footprint in the Organization Miscellaneous Environmental Standards and EMS Related Discussions 2
C Calculating your KPIs ISO 13485:2016 - Medical Device Quality Management Systems 7
K Calculating Heat Dissipation Manufacturing and Related Processes 1
Q Calculating Defect Rates ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 4
S Formula for Calculating NoGo Major Diameter for UN gages Inspection, Prints (Drawings), Testing, Sampling and Related Topics 4
P Calculating a weight for a machine for the CE label CE Marking (Conformité Européene) / CB Scheme 0
R Remote Support - Calculating Number of Employees IATF 16949 - Automotive Quality Systems Standard 2
G Calculating Tolerance of a Panel Meter with a 2 degrees of an Arc General Measurement Device and Calibration Topics 0
T Calculating LCL, UCL, Cp, and Cpk in an Excel Spreadsheet Statistical Analysis Tools, Techniques and SPC 3
V Product Development - When to start calculating Process Capability Capability, Accuracy and Stability - Processes, Machines, etc. 3
J Calculating Reliability for Subsystems in Series Reliability Analysis - Predictions, Testing and Standards 15
Stijloor Calculating (3rd Party) Audit Days for Company with Seasonal Employees General Auditing Discussions 3
T Formulas for Calculating Coefficients for RTD / PRTD Calibration According to ITS-90 General Measurement Device and Calibration Topics 5
J Calculating part variation from historic data for GRR study Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
P Purpose of calculating Ta, Tb & R Square in Linearity Study Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 1
P Purpose of calculating Uncertainty value in calibration study Measurement Uncertainty (MU) 5
M Calculating MTBF for plug-in PCI cards Reliability Analysis - Predictions, Testing and Standards 2
J Calculating impact force, expressed in lbs, of a 5 lb weight dropped 48 inches Inspection, Prints (Drawings), Testing, Sampling and Related Topics 1
M Calculating Cpk when sample size equals to 1 Capability, Accuracy and Stability - Processes, Machines, etc. 12
D Calculating Cpk on Non-Normal Data Distribution Capability, Accuracy and Stability - Processes, Machines, etc. 10
K Calculating Capability of a process when data is skewed in the upper range Capability, Accuracy and Stability - Processes, Machines, etc. 4
M Calculating Coefficients for an RTD (Resistance Temperature Detector) Probe General Measurement Device and Calibration Topics 3
T Calculating Plating/Coating Weight for IMDS RoHS, REACH, ELV, IMDS and Restricted Substances 3
D Calculating Lower and Upper 3 Sigma Control Limits Statistical Analysis Tools, Techniques and SPC 2
M Calculating Adequate Receiving Inspection Sample Size Statistical Analysis Tools, Techniques and SPC 2
M Calculating Capability of Delivery Performance Capability, Accuracy and Stability - Processes, Machines, etc. 5
K Advice on Calculating Control Chart Control Limits Statistical Analysis Tools, Techniques and SPC 13
B Calculating Combined DPMO and Sigma Level for Two or More Different Work Areas Six Sigma 3
G Calculating the Fraction Defective Confidence Interval for a Lot Statistical Analysis Tools, Techniques and SPC 2
A Calculating Combined Measurement Uncertainty - VDA 5 Measurement Uncertainty (MU) 1
B Calculating Precision to Tolerance Ratio Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 9
D DPPM - Calculating the Defect Rate of a Software Test Statistical Analysis Tools, Techniques and SPC 9
L FMEA - Calculating RPN = S*O*D FMEA and Control Plans 3
I Shewhart Constants vs Central Limit Theorem in calculating Control Limits Statistical Analysis Tools, Techniques and SPC 18
B Please share a template for calculating Cp Cpk Document Control Systems, Procedures, Forms and Templates 3
S Is a Stable Process (within Control Limits) required for Calculating Pp, Ppk? Capability, Accuracy and Stability - Processes, Machines, etc. 6
M Calculating the IATF TS 16949 Recertification Audit Man Days - Clarification ISO 9000, ISO 9001, and ISO 9004 Quality Management Systems Standards 6
J IEC60825 - Laser Safety - Calculating Maximum Permissible Exposure Correctly Other ISO and International Standards and European Regulations 1
P Calculating Process Capability from Data of attached spreadsheet Statistical Analysis Tools, Techniques and SPC 4
I AQL Formula in Excel - Calculating Sample Size based on an AQL Chart AQL - Acceptable Quality Level 8
D Formula for Calculating Warp Measurement of Corrugated Boxes General Measurement Device and Calibration Topics 1
S Need Help Calculating and Implementing Cs - Wright's Index Statistical Analysis Tools, Techniques and SPC 11
S Calculating an Uncertainty Budget for an Optical Comparator General Measurement Device and Calibration Topics 4
D One-Two-Three Sigma Control Limits - Calculating Control Limits for X-bar Charts Statistical Analysis Tools, Techniques and SPC 3
K Calculating (Approximate) Parallelism Inspection, Prints (Drawings), Testing, Sampling and Related Topics 10
S Calculating MTBF (Mean Time Between Failures) for the whole Production Unit Reliability Analysis - Predictions, Testing and Standards 2
J Need help calculating actual Ppk - Result of % GR&R=11.8% when conducting MSA Gage R&R (GR&R) and MSA (Measurement Systems Analysis) 11
M Calculating Cp and Cpk - Is my calculation correct? Capability, Accuracy and Stability - Processes, Machines, etc. 7
K Calculating UCL (Upper Control Limit) and LCL (Lower Control Limit) Statistical Analysis Tools, Techniques and SPC 14

Similar threads

Top Bottom