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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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| | | Hong Kong, China, SCL (Standards and Calibration Laboratory) |
| | Complete CMCs in Electricity and Magnetism for Hong Kong, China (.PDF file) | | | AC current up to 100 A: meters. AC ammeters, 0.0001 A to 1 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 120 to 400 | | By series comparison with a calibrated AC shunt | | Frequency: 40 Hz to 10 kHz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/6.2.2-001 | |
Uncertainty table
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| | | AC current up to 100 A: sources. Multifunction calibrator, transconductance amplifier, 0.005 A to 20 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 30 to 500 | | AC-DC transfer | | Frequency: 40 Hz to 10 kHz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/6.2.1-001 | |
Uncertainty table
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| | | AC current up to 100 A: sources. Multifunction calibrator, transconductance amplifier, 0.0025 A to 20 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 60 to 500 | | AC-DC transfer | | Frequency: 20 Hz to 10 kHz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/6.2.1-002 | |
Uncertainty table
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| | | AC current up to 100 A: sources. Multifunction calibrator, transconductance amplifier, 1 A to 100 A | | Relative expanded uncertainty (k = 2, level of confidence 95%) in µA/A: 80 | | Step down using current transformer | | Frequency: 45 Hz to 60 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/6.2.1-003 | |
Uncertainty table
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| | | AC high voltage: meters. AC high voltage meter, dedicated set-up for high voltage measurement, 1 kV to 11 kV | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 0.26 to 2.9 | | Comparison with reference system | | Frequency: 50 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/8.3.2-001 |
| | | AC high voltage: sources. High voltage AC source, 1 kV to 11 kV | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in V: 0.26 to 2.9 | | Direct measurement with reference system | | Frequency: 50 Hz | | Approved on 25 August 2008 | | Internal NMI service identifier: SCL/8.3.1-001 |
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