DC / Low Frequency (Electrical) Calibration
DC & LF electrical and oscilloscopes — Fluke 5720A, HP 3458A, Vitrek 4620B
DC / Low Frequency (Electrical) metrology at FCI
DC and low-frequency electrical calibration keeps the meters, sources, analyzers, and oscilloscopes in your test benches reading true. FCI calibrates against multifunction reference standards including the Fluke 5720A and 5520A, HP 3458A, Fluke 8508A, Vitrek 4620B, HP 4284A, and Keithley 487, all traceable to NIST.
DC voltage is generated to 1000 V (Fluke 5720A) and measured to 1000 V (HP 3458A); DC current is generated from 10 µA to 1000 A and measured from nanoamps to 1000 A. DC resistance spans 0 Ω to 1 TΩ across the Fluke 5720A/5520A and Keithley 487, and is measured to 20 GΩ on the Fluke 8508A. DC power is generated 10 mW to 1 kW (Fluke 5520A).
AC voltage is generated from 0.22 mV to 1100 V (10 Hz–1 MHz) and measured to 20 kV (Vitrek 4620B), with amplitude flatness referenced by thermal transfer. AC current spans 100 µA to 1000 A; capacitance spans 1 pF to 110 mF and inductance 10 µH to 10 H using the HP 4284A. Oscilloscope work covers DC signal, square wave, edge rise/fall (150 ps / 500 ps), leveled sine to 3.2 GHz (Fluke 9500B w/9530), and timing markers.
As-found and as-left data is captured at every test point, with expedited turnaround for critical bench instruments and on-site calibration for fixed test systems.
Measurement parameters & uncertainty
| Parameter | Range | Uncertainty (k=2) | Reference Standard |
|---|---|---|---|
| DC voltage (generate / measure) | 0 mV – 1000 V | scales with range | Fluke 5720A / HP 3458A |
| DC current (generate / measure) | 10 µA – 1000 A | scales with range | Fluke 5720A / 5520A · HP 3458A · LAB100-100 |
| DC resistance (generate) | 0 Ω – 1 TΩ | scales with range | Fluke 5720A / 5520A · Keithley 487 V/I |
| DC resistance (measure) | 0 Ω – 20 GΩ | scales with range | Fluke 8508A (normal + HV) |
| AC voltage (generate) | 0.22 mV – 1100 V (10 Hz–1 MHz) | scales with range | Fluke 5720A / 5725A |
| AC voltage (measure) | 0 mV – 700 V; 0 – 20 kV | scales with range | HP 3458A / Vitrek 4620B |
| Capacitance | 1 pF – 110 mF | scales with range | Fluke 5520A / HP 4284A |
| Inductance | 10 µH – 10 H | scales with range | HP 4284A (100 Hz–100 kHz) |
| Oscilloscope — leveled sine | 5 mVp-p – 5 Vp-p, 0.1 Hz – 3.2 GHz | per Fluke 9530 | Fluke 9500B w/ 9530 |
| Oscilloscope — edge rise/fall | 150 ps / 500 ps | 19 ps / 44 ps | Fluke 9500B (fast edge) |
Best achievable uncertainty under reference conditions. Device-specific CMC stated per certificate.
What we calibrate in dc / low frequency (electrical)
- Digital multimeters & calibrators
- Oscilloscopes (DC, square, edge, leveled sine, timing)
- Power supplies, sources & shunts
- Capacitance / inductance meters (LCR)
- Hipot & high-voltage analyzers
Where this discipline delivers value
- Production test-equipment calibration
- Oscilloscope & DMM upkeep
- Hipot / high-voltage analyzer verification
- Data-acquisition & LCR support
Traceability: NIST → IAS → FCI → Your Asset
DC and low-frequency electrical measurements are traceable to NIST through the Fluke 5720A/5520A multifunction calibrators, HP 3458A, Fluke 8508A, and Vitrek 4620B reference standards. Uncertainties are reported at 95% confidence (k=2) on each ISO/IEC 17025:2017 certificate.
DC / Low Frequency (Electrical) calibration questions
What electrical test equipment do you calibrate?
Digital multimeters and calibrators, oscilloscopes, power supplies, sources and shunts, LCR meters, and hipot and high-voltage analyzers.
What are your electrical ranges?
DC voltage to 1000 V, DC current from 10 µA to 1000 A, resistance from 0 Ω to 1 TΩ generated, AC voltage to 1100 V from 10 Hz to 1 MHz, capacitance from 1 pF to 110 mF, and inductance from 10 µH to 10 H.
Can you calibrate oscilloscopes?
Yes. A Fluke 9500B with a 9530 head covers leveled sine from 0.1 Hz to 3.2 GHz and edge rise time at 150 ps and 500 ps, along with DC, square wave and timing checks.
Which reference standards do you use?
Our electrical standards include the Fluke 5720A, 5520A and 8508A, the HP 3458A and 4284A, the Vitrek 4620B and the Keithley 487. Returning customers get a written quote within one business day. New customers and new equipment go through ISO/IEC 17025 contract review in three to five business days.