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AC voltage (up to the MHz range), AC voltage up to 1100 V, sources (1)
AC voltage (up to the MHz range), AC voltage up to 1100 V, meters (1)
AC current, AC current up to 100 A, sources (1)
AC current, AC current up to 100 A, meters (1)
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Costa Rica, ICE-LMVE (Instituto Costarricense de Electricidad, Laboratorio Metrológico de Variables Eléctricas)
Complete CMCs in Electricity and Magnetism for Costa Rica (.PDF file)
AC voltage (up to the MHz range), AC voltage up to 1100 V, sources. Multifunction calibrator, source, oscilloscope calibrator, 0.01 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 72 to 31213
Direct comparison
Frequency: 10 Hz to 500 kHz
Approved on 23 March 2010
Internal NMI service identifier: ICE-LMVE/52101
Uncertainty table
 
AC voltage (up to the MHz range), AC voltage up to 1100 V, meters. AC voltmeter, multimeter, multifunction calibrator, 0.01 V to 1000 V
Relative expanded uncertainty (k = 2, level of confidence 95%) in µV/V: 50 to 10667
Direct comparison
Frequency: 10 Hz to 1 MHz
Approved on 23 March 2010
Internal NMI service identifier: ICE-LMVE/52201
Uncertainty table
 
AC current, AC current up to 100 A, sources. Multifunction calibrator, source, 0.0001 A to 10 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 392 to 8803
Direct comparison
Frequency: 10 Hz to 100 kHz
Approved on 23 March 2010
Internal NMI service identifier: ICE-LMVE/62101
Uncertainty table
 
AC current, AC current up to 100 A, meters. AC ammeter, multimeter, multifunction calibrator, 0.0001 A to 11 A
Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 113 to 5849
Direct comparison
Frequency: 10 Hz to 10 kHz
Approved on 23 March 2010
Internal NMI service identifier: ICE-LMVE/62201
Uncertainty table
 
AC power, AC power and energy, single phase (frequencies below or equal to 400 Hz). Watthour meter, wattmeter, 15 W to 12000 W
Relative expanded uncertainty (k = 2, level of confidence 95%) in µW/VA: 289
Comparison
Frequency: 60 Hz
Applied voltage: 120 V and 240 V
Current: (0.25 A at 120 V and 0.3 A at 240 V) to 50 A
Power factor: 1, 0.5 lead, 0.5 lag
Approved on 23 March 2010
Internal NMI service identifier: ICE-LMVE/71101