| Calibration | : | DC Voltage & Current |
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The Absolute Calibration laboratory volt is maintained using a Fluke 7000 Nanoscan DC Reference System incorporating four reference standards and a travelling standard. Calibration uncertainty of zenner references at 10 V is ±0.23 ppm. Dissemination of dc voltage up to 1000 V is through precision dividers and 8.5 digit laboratory digital multimeters. Voltages up to 100 kV are measured using specialist resistive dividers designed and built in-house. Current measurement up to 100 A is maintained through precision laboratory DMM's and standard current carrying resistors. Our state-of-the art ATE system allows the automatic UKAS calibration of most modern Digital Multimeters |
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UKAS DC Voltage Uncertainites
| Measured Quantity | Calibration & Measurement Capability |
| Standard Cell Values | |
| 1.018 V | 0.44 ppm |
| Specific Values | |
| 0.1 V | 0.61 ppm |
| 1.0 V | 0.43 ppm |
| 10 V | 0.34 ppm |
| 100 V | 0.40 ppm |
| 1 Kv | 0.70 ppm |
For other values, please take the link below to view our full UKAS Calibration schedule.
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