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Calibration and Measurement Capabilities
Electricity and Magnetism |
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| In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a2 + b2]1/2 |
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| Result of the search |
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Your selection : Electricity and Magnetism
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| | | China, NIM (National Institute of Metrology) |
| | Complete CMCs in Electricity and Magnetism for China (.PDF file) | | | AC current up to 100 A: meters. AC ammeter, multimeter, multifunction transfer standard, 0.01 A to 100 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 20 to 200 | | Direct comparison | | Frequency: 25 Hz to 100 kHz | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-95 | |
Uncertainty table
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| | | AC current up to 100 A: sources. Multifunction calibrator, transconductance amplifier, 0.01 A to 100 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 20 to 200 | | Direct comparison | | Frequency: 25 Hz to 100 kHz | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-94 | |
Uncertainty table
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| | | AC power and energy: single phase power (frequency <= 400 Hz), active energy. Power meter, energy meter, power converter, wattmeter, 0 J to 800 000 J | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µJ/VAs : 12 | | Direct comparison | | Voltage: 60 V, 100 V, 120 V, 220 V, 240 V, 400 V | | Current: 0.5 A, 1 A, 2 A, 5 A, 10 A, 20 A | | Power factor: cos : 0.0 lead and lag, 0.5 lead and lag, 0.866 lead and lag, 1.0 | | Frequency: 45 Hz to 65 Hz | | Measurement time: 10 s, 100 s | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-97 |
| | | AC power and energy: single phase power (frequency <= 400 Hz), active energy. Power meter, energy meter, power converter, wattmeter, 0 J to 4 000 000 J | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µJ/VAs: 40 | | Direct comparison | | Voltage: 50 V to 400 V | | Current: 0.5 A to 100 A | | Power factor: cos: 0.0 lead and lag, 0.5 lead and lag, 0.866 lead and lag, 1.0 | | Frequency: 45 Hz to 65 Hz | | Measurement time: 10 s to 100 s | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-103 |
| | | AC power and energy: single phase power (frequency <= 400 Hz), active power. Power meter, power converter, wattmeter, 0 W to 8 W | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µW/VA: 40 | | Direct comparison | | Voltage: 60 V, 100 V, 120 V, 220 V, 240 V, 400 V | | Current: 5 mA, 10 mA, 20 mA | | Power factor: cos: 0.0 lead and lag, 0.5 lead and lag, 0.866 lead and lag, 1.0 | | Frequency: 45 Hz to 65 Hz | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-100 |
| | | AC power and energy: single phase power (frequency <= 400 Hz), active power. Power meter, power converter, wattmeter, 0 W to 80 W | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µW/VA: 25 | | Direct comparison | | Voltage: 60 V, 100 V, 120 V, 220 V, 240 V, 400 V | | Current: 50 mA, 100 mA, 200 mA | | Power factor: cos: 0.0 lead and lag, 0.5 lead and lag, 0.866 lead and lag, 1.0 | | Frequency: 45 Hz to 65 Hz | | Approved on 19 March 2012 | | Internal NMI service identifier: NIM/LF-101 |
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