AC current calibrator recommendations

[Flavio Ribeiro]

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

 

[Robert Baer]

Flavio Ribeiro wrote:

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

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.

 

[John Jardine]

Flavio Ribeiro <nospam@fake.com> wrote in message
news:106rviagfp8ljdf@corp.supernews.com...

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

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!.