The 731B is a used Voltage Standard from Fluke. Engineers use direct current (DC) voltage standards to calibrate, standardize, normalize, and monitor drift, verify linearity, and establish regulation in electronic equipment. Standards are important during electronics compliance testing. Phase angle standards are ideal for calibrating many different electronics, including power analyzers, vector voltmeters, phase meters, phase sensitive instruments, and resolvers.
- Output Ranges: 10V, 1V, 1.018+ΔE, 1.019+ΔE, ΔE
- Source Resistance: 10V range is <0.07Ω; 1V, 1.018V, 1.019V, ΔE Ranges are <1kΩ
- Output Protection: The output may be shorted indefinitely without damage to the instrument
- Line Regulation: <1 ppm for ±10% line voltage variation
- Ripple & Noise: <1 ppm p-p dc to 1 Hz, <20µV rms 1 Hz to 1 MHz, except <70µV rms at 10 V output
- Common Mode Noise Rejection: ≥120dB at dc, ≥100dB at 60 Hz, ≥85dB at 400 Hz
- Isolation: Output may be floated up to 500V dc between chassis ground and guard
- Input Power: 115V or 230V ac ±10V, 50 to 400 Hz or internal rechargeable batteries, 6W max, 120 mA max
The Fluke 731B DC Reference Standard is a versatile instrument providing stability, while utilizing the excellent performance capabilities of solid-state technology. The instrument furnishes a wide variety of prevision voltages with switched output ranges including 1.0, 1.018 + ΔE, 10.0, and ΔE volts.
ΔE provides a variable output of 0 to 999 µV which is either added to the voltage of a standard cell transfer or may be used directly as a low-level, stable direct voltage source.