Hi,
I'm looking for an AC (sine wave) current calibrator with a 0-5 A output. Could anyone recommend one under $300 (second hand equipment is fine)?
Thanks,
Flavio
AC current calibrator recommendations
Apr 03, 2004
2 Replies
You could make your own for $25 or less.. The first trick is to make an air coil of 100 turns to drive with
0-50mA; if the equipment to be calibrated will allow a fari-sized volume, the make it 1000 turns for 0-5mA. If 3% distortion is acceptable, a phase retard oscillator produces a pseudo-sine with the amplitude as accurate as the supply used. Otherwise, use a Wien Bridge oscillator.
The Clarke-hess 'Voltage-Current calibrator model 828' will do what you want. Also marketed by 'RFL' in Boonton N.J as 'AC/DC V-A Source' using the same model number. I picked up a used one (in UK) last week for the equiv' of $40. Lovely stuff!.
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