Wavetek 4953 10A AC/DC precision shunt review



This is stub for Wavetek 4953 Shunt. This shunt is designed and sold in bundle with Wavetek 4950 Multi-function Transfer Calibrator.

xDevs.com Wavetek 4953 Fluke A40B-10A Units
Nominal shunt current 0 to 11 0 – 10 A
Nominal DC resistance 0.01 0.08 Ω
Input / output connector 5-way binding posts N female connector
Frequency range DC, 10 – 20k DC, 10 – 100k Hz
Short-term stability, ±1 °C ± 20 ± 26 ppm of FS
Temperature coefficient 10 10 ± ppm/°C
AC Flatness Low band 200 ppm, 10 Hz – 1 kHz 26 to 37 ppm, 10 Hz – 1 kHz
AC Flatness Hi band 300 ppm 5kHz, 600 ppm 10 kHz, 1000 ppm, 20 kHz 60 ppm 10kHz, 92 ppm 100 kHz
Temperature coefficient, AC 40 ppm Low band, up to 120 ppm Hi band 4.5 ppm

Table 1: Specification of the Wavetek 4953


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Exterior and connections

Image 1-2. Wavetek 4953 AC/DC 10A shunt facepanel

Image 3. Original labels on the bottom of the shunt

Image 1-2. Owner’s calibration results

Calibration test

Temperature stability

Frequency flatness comparisons

To compare AC/DC transfer performance set of additional shunts was used:

  • Fluke A40B 20A shunt
  • Fluke A40A 20A shunt

Summary & Conclusion


Author: Illya Tsemenko
Published: Feb. 13, 2020, 6:03 a.m.
Modified: Aug. 25, 2020, 10:55 p.m.