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Metrological service

Accreditation scope for measuring instruments verification

Measuring devices under verification
Verification type: initial after production, initial after repair, periodical Name of measuring instrument groups Metrological characteristics
Measurement range Class, digit, inaccuracy
Thermophysical and temperature measurements
1 Periodical, initial after production, when imported and after repair Digital thermometers (w/o sensor);
digital multimeters in temperature measurement mode
(-200…2300) °С ± (0,1…1) °С
Time and frequency measurement
2 Periodical, initial after production, when imported and after repair Frequency counters,
digital multimeters in frequency measurement mode
0,01Hz…4GHz
0,1µs …10s
±1×10-8 per year
±1×10-8 per year
Measurement of electric and magnetic values
3 Periodical, initial after production, when imported and after repair Digital voltmeters (multimeters) in measurement mode of:
-DC voltage

-AC voltage




-DC

-AC


-resistance

-capacity


- inductance


1µV …1000V;

10µV …1000V
10Hz …500kHz,
100µV …3,5V
500kHz…1100MHz;

0,1µA…20A;

1µA …20A,
10Hz …30kHz

0,001Ω…10000 MΩ

100pF …1µF
1µF …110mF

1µH …1H


±(0,005…1)%

±(0,05…0,3)%

±(0,5…10)%


±(0,1…1,5)%

±(0,12…1)%


±(0,01…1)%

±(0,3…1)%
±(1,5…3)%

±(0,1…5)%
4 Periodical, initial after production, when imported and after repair Resistance meter 0,002Ω …10000MΩ ±1%
5 Periodical, initial after production, when imported and after repair Electric resistance measures 0,002Ω …10000MΩ ±0,2%
6 Periodical, initial after production, when imported and after repair Sezmiconductor and IC L2-… testers (0,05…400)V
(10-9…10-3)A
±(2,5…5)%
±(2,5…5)%
7 Periodical, initial after production, when imported and after repair DC sources (0,01…300)V
(0,001…20)A
Unstable output voltage
Unstable output current
±0,5%
±1,0%
±0,01%

±0,01%
8 Periodical, initial after production, when imported and after repair Electronic loads in measurement mode of:
-DC
-DC voltage

1mA …30A
(1...300)V

±0,05%
±(0,015...0,02) %
9 Periodical, initial after production, when imported and after repair Clamp meters; Power quality analyzers in measurement mode of:

-DC

-AC






-DC power

-AC power


-phase angle


- harmonic factor



0,01mA…1000A

1µA …329mA
10Hz… 30kHz
330mA…2,9A
10Hz… 10kHz
3A…1000A
10Hz… 440Hz

010mW…1000kW

10mW…1000kW
(45…1000) Hz

0°…360°
(45…1000)Hz

(0…4) %
from 2 to 50 harmonics



±(0,1…1,5)%

±(0,5…3)%

±(0,5…3)%

±(0,5…5)%


±(0,1…0,3)%

±(0,2…0,5)%


±(0,5…1,5)%


±0,16%
10 Periodical, initial after production, when imported and after repair Thermometer calibrators and multifunctional calibrators in playback mode of:
-voltage
-current
-resistance


0,1mV…15V
1µA …100mA
1Ω…3200Ω


±0,02%
±0,2%
±(0,1…1)Ω
Radiotechnical and radioelectric measurements
11 Periodical, initial after production, when imported and after repair Low-frequency signal generator 0,01Hz…50MHz

0,01V…40V

THD = 0,1%-30%
20Hz…200kHz
±0,0001%

±(1…30)%

±0,2 %
12 Periodical, initial after production, when imported and after repair Oscilloscopes (0…1100) MHz
1mV…1000V
1ns…10s

±0,15%;
±0,01%
13 Periodical, initial after production, when imported and after repair AC voltage voltmeters 10µV …700V
10Hz…100kHz;
10µV …3V
100kHz…100MHz
±(0,3…1,5)%

±(0,6…15)%

List of standard samples and support equipment

  1. Calibrator-voltmeter B1-29
  2. Voltmeter B7-40/5
  3. Oscilloscope C1-114/1
  4. Resistor bank P4831
  5. Resistor bank P4002
  6. Resistor bank P40101
  7. Resistor bank P40108
  8. Resistor bank P40115
  9. Capacitor box Р5025
  10. Psychometric hygrometer ВИТ-2
  11. Device for measuring electric strength of insulation УПУ 1-М
  12. Megaohmmeter Ф-4102/1-1М
  13. Frequency meter Ч3-63/1
  14. Inductance measure kit Р596
  15. Р310 (0,001?)
  16. Р321(0,1?)
  17. Р310 (0,01?)
  18. Microvoltmeter В3-57
  19. Unstability tester В8-8
  20. Distortion meter С6-11
  21. Oscilloscope calibrator И1-9
  22. Test signal generator И1-14
  23. Test signal generator И1-15
  24. Voltmeter В3-48А
  25. Pulse generator Г5-75
  26. Signal generator Г4-176
  27. Calibrator-voltmeter В1-28
  28. Signal generator Г3-112
  29. Signal generator Г3-110
  30. Power supply Б5-47
  31. Calibrator FLUKE-5520А
    Option SC-1100
  32. Calibrator FLUKE-5520А
    Option PQ, 50 turn coil
  33. Signal generator Г4-78
  34. Signal generator Г4-79
  35. Signal generator Г4-80
  36. Oscilloscope TDS3012
  37. Multimeter АВМ-4306
  38. Electronic load АТН-8120
  39. Electronic load АТН-8301
  40. Autotransformer TDGC-2
  41. Power supply АТН-1237
  42. Frequency standard 6689/011
  43. Frequency meter Ч3-64/1
  44. Aneroid barometer БАММ-1
  45. Power sensor NRP-Z31
  46. Calibrator FLUKE-5522А
    Options PQ, SC-1100
  47. Precision voltmeter Fluke 8508A
  48. Thermocouple АТА-2008
  49. Thermocouple АТА-2102
  50. Thermocouple АТА-2103
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