Electrical quantities

AS Metrosert calibrates instruments that measure direct voltage, alternating voltage, current, resistance, impedance, capacity, inductance, power, electricity, time and frequency.

• direct voltage and current calibrators;
• alternating voltage and current calibrators;
• direct and alternating current voltmeters and ammeters;
• multimeters;
• resistance coils and boxes;
• ohmmeters;

• electrical installation parameter meters;
• wattmeters
• power supply units;
• capacity and impedance measuring devices;
• electrical conductivity standards.

AS Metrosert offers measurement of various electrical parameters such as voltage, power, electrical energy quality, etc.

Measurement of electrical conductivity in the measuring range of (1…60) MS/m at operating frequencies of 60/120/240/480 kHz with measurement uncertainty of <1.4%.

Traceability of electrical quantities:

• the measurements of direct voltage are traceable to the direct voltage standard of the Estonian national measurement standard laboratory;
• the measurements of resistance are traceable to the resistance standard of the Estonian national measurement standard laboratory;
• the measurements of the relationship between direct and alternating current are traceable to the measurement standards of the Swedish Metrology Institute (RISE).

Tallinn:
Ivan Sertakov
mob 514 0541
ivan.sertakov@metrosert.ee

Calibrations performed in the national measurement standard laboratory of electrical quantities:

• Measuring instruments that measure direct voltage are calibrated in the range from 10 mV to 1 kV with a relative expanded uncertainty of (1…20)·10^-6.
• Measuring instruments that measure resistance are calibrated in the range from 1 mΩ to 10 kΩ with a relative expanded uncertainty of (1…5)·10^-6.

CONTACT:
Andrei Pokatilov
mob 529 7095
andrei.pokatilov@metrosert.ee