Calibration of meters

Metrology is a field that significantly affects the quality of products and services. EZÚ offers calibration of work meters and gages in its capacity as the calibration laboratory no. 2294, accredited by the Czech Accreditation Institute in accordance with the ISO/IEC 17025, and authorized by the Office for Standards, Metrology and Testing as a center for calibration services according to the Metrology Act. We carry out calibration in our own laboratory and also off-site on our customers’ premises.

Scope of meter calibration:

Electric quantities
DC voltage0 to 100 kV
AC voltage0,1 mV to 100 kV
amplitude of impulse voltage1,8 mV to 30 kV
impulse rise timefrom 0,7 ns
impulse duration time2 ns to 5 s
direct current5 pA to 1000 A
alternating current1 mA to 1000 A
DC resistance0.1 mΩ to 100 TΩ
AC resistance0.1 Ω to 100 kΩ
AC resistance1 mΩ to 100 kΩ
module of impedance1 mΩ to 100 kΩ
low-frequency power10 mW to 21 kW
power factor0 to 1
AC resistance0.1 Ω to 100 kΩ
capacity1 pF to 100 µF
loss coefficient of capacity0 to 1.6
inductivity0.1 mH to 10 H
high-frequency power20 pW to 200 mW
rebound factor module0 to 1

Types of calibrated meters

  • analog and digital voltmeters, ammeters, tong ammeters and multimeters
  • power supply units and voltage and current calibrators, high-voltage sources, electrostatic field meters
  • meters of low resistance, insulation resistance, inspection devices
  • gage resistances and resistance decades
  • watt meters
  • analog and digital oscilloscopes, impulse and signal generators, other devices calibrated by the measurement of high-frequency power and rebound factor
  • RLC meters and gages
Photo of Jan Holub
Manažer produktu
Phone+420 266 104 430Cell phone+420 603 223 409
Examelectric safetyTests EMCEZU certificate

Why use the services of the EZÚ calibration laboratory?

  • Quick and precise execution of calibration
  • Guarantee of independent verification – increasing trust in relation to business partners
Compliance with legislative requirements for products subject to metrological verification
Light quantities
luminance1 cd to 10000 cd
light flow50 lm to 10000 lm
chromatic temperature2000 K to 2900 K
illumination1 lx to 50000 lx
brightness5 cd/m2 to 500 cd/m2

Types of calibrated meters

  • electronic thermometers
  • temperature chamber thermometers
Range-50 °C to 420 °C

Types of calibrated meters

  • counters, generators
  • stopwatches
  • revolution counters
Time and frequency quantities
frequency0,1 Hz to 3 GHz
time interval5 ns to 100000 s
speed30 min-1 to 10000 min-1

Types of calibrated meters

  • light gages, light flow and chromaticism temperature
  • timers
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