Calibrating a multimeter in Poland

Multimeter calibration in Poland can be performed at accredited laboratories following international standards, ensuring accurate and reliable measurements.

Understanding Multimeter Calibration

Calibration is the process of verifying and adjusting a digital multimeter (DMM) to ensure its measurements meet the manufacturer's specifications or organizational requirements. Over time, environmental factors, usage, and physical wear can affect a multimeter's accuracy, making periodic calibration essential. Typically, DMMs are calibrated annually, though the interval may vary depending on usage, environment, and precision requirements.

Calibration involves checking all functions of the multimeter, including voltage, current, resistance, and capacitance, using a high-precision calibrator that is at least four times more accurate than the device under test. Standards such as EURAMET cg-15 provide guidelines for terminology, procedures, measurement uncertainty, and calibration certificates, ensuring consistency across Europe.

Calibration Procedures

Calibration can be performed manually or using software-assisted systems like MET/CAL, which guide technicians step-by-step through the process. The procedure typically includes: Verifying the multimeter's display, buttons, and functions. Connecting the multimeter to a high-precision calibrator.

Measuring and adjusting outputs for direct voltage, alternating voltage, current, resistance, and other functions. Documenting pre-adjustment and post-adjustment readings to confirm compliance with specifications.

Accredited Calibration Laboratories in Poland

Poland has several accredited laboratories capable of performing multimeter calibration: PLUM LAB – Accredited under PN-EN ISO/IEC 17025: 2018-02 (certificate No.

A

P 074), PLUM LAB provides calibration for electrical instruments, temperature, pressure, and humidity measurements. Certificates issued are recognized nationally and internationally under EA MLA and ILAC MRA agreements.

ANMA

R Poland – Equipped with advanced calibration equipment, ANMAR offers electrical calibration services using high-precision instruments such as FLUKE 8846A and universal calibrators. Their laboratory ensures periodic verification of instrument parameters and safe operation, suitable for healthcare and industrial applications.

Recommendations

Frequency: Calibrate your multimeter at least once a year or according to manufacturer recommendations. Documentation: Always request a calibration certificate for compliance and traceability. Selection of Laboratory: Choose an accredited laboratory to ensure internationally recognized results.

Preparation: Ensure the multimeter is clean, functional, and all accessories (test leads, probes) are available before calibration. By following these guidelines and using accredited services, you can maintain the accuracy and reliability of your multimeter in Poland, ensuring compliance with both local and international standards.