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CZ/EN

Department of Instrumentation and Control Engineering

Measurement

Verification of electrical and non-electrical quantities

Counters of what quantities we are able to verify in our laboratories.

Electrical quantities

Accuracy given in ± (% of reading +% of range)
DC voltage

range accuracy 1 year after calibratio
100 mV 0.0050 + 0.0035
1 V 0.0040 + 0.0007
10 V 0.0035 + 0.0005
100 V 0.0045 + 0.0006
1000 V 0.0045 + 0.0010

Alternating current – True RMS ranges 100 mV, 1 V, 10 V, 100 V, 750 V

frequency accuracy 1 year after calibration
3 – 5 Hz 1.00 + 0.03
5 – 10 Hz 0.35 + 0.03
10 Hz – 20 kHz 0.06 + 0.03
20 – 50 kHz 0.12 + 0.05
50 – 100 kHz 0.60 + 0.08
100 – 300 kHz 4.00 + 0.50
Electrical resistance
range accuracy 1 year after calibration
100 Ω 0.010 + 0.004
1 kΩ 0.010 + 0.001
10 kΩ 0.010 + 0.001
100 kΩ 0.010 + 0.001
1 MΩ 0.010 + 0.001
10 MΩ 0.040 + 0.001
100 MΩ 0.800 + 0.010
Direct current
range accuracy 1 year after calibration
100 µA 0.050 + 0.025
1 mA 0.050 + 0.006
10 mA 0.050 + 0.020
100 mA 0.050 + 0.005
1 A 0.100 + 0.010
3 A 0.200 + 0.020
10 A 0.120 + 0.010
Alternating current rozsahy 100 µA, 1 mA, 10 mA, 100 mA
frequency accuracy 1 year after calibration
3 Hz – 5 kHz 0.10 + 0.04
5 – 10 kHz 0.10 + 0.04
range1 A
frequency accuracy 1 year after calibration
3 Hz – 5 kHz 0.10 + 0.04
5 – 10 kHz 0.10 + 0.04
range 3 A
frequency accuracy 1 year after calibration
3 Hz – 5 kHz 0.23 + 0.04
5 – 10 kHz 0.23 + 0.04
range 10 A
frequency accuracy 1 year after calibration
3 Hz – 5 kHz 0.15 + 0.04
5 – 10 kHz 0.15 + 0.04
Frequency **ranges of voltage 100 mV, 1 V, 10 V, 100 V, 750 V ** accuracy in ±(% of measured values )
range accuracy 1 year after calibration
3 – 10 Hz 0.100
10 – 100 Hz 0.030
100 Hz – 1 kHz 0.010
1 – 300 kHz 0.010
obdélníkový signál 0.010

Neelektrické veličiny

Calibration of thermometers contact-less
IR kalibrátor IR-500 – černé těleso
rozsah: 50 to 500°C
rozsah accuracy
< 100°C ±0.8°C
100 až 200°C ±1.6°C
200 až 500°C ±2.8°C
Calibration of contact thermometers
Calibration bath Transcat 7320
Calibration of contact thermometers in the range –20°C to 150 °C. stability:
  • ±0,005 °C at –20 °C (ethanol)
  • ±0,005 °C at 25 °C (water)
  • ±0,007 °C at 150 °C (oil)
Temperature
Multimetr Agilent 34461A
probe accuracy 1 year after calibration
PT100 (DIN/ IEC 751) probe accuracy + 0.05 °C
5 kΩ termistor probe accuracy + 0.1 °C
Humidity
Sensirion EK-H4
sensor range accuracy of humidity measurement accuracy of temperature measurement
SHT21 0 to 100% RH ± 2% (in the range 20% až 80% RH) ± 0.3 °C
SHT71 0 to 100% RH ± 3% (in the range 20% až 80% RH) ± 0.4 °C
SHT75 0 až 100% RH ± 1.8% (v rozsahu 10% až 90% RH) ± 0.3 °C