Although it is always advised, there are times when it is not possible to use the current clamps supplied by Reliable Power Meters or their distributors. Below is a suggestion for an adapter for connecting to non-standard current clamps or detection circuits.
Note: The inputs are not isolated from the instrument ground. The input into the instrument must be floating so as to avoid ground loop currents.
Pin 4 - Signal
Pin 1 - Signal
With this arrangement, the current is fixed at 5A Full Scale Deflection, and requires 2V to reach FSD making the sensitivity 1mV/2.5mA. In order to correct this, a multiplier can be inserted in the multiplier options in the software located under the heading "Options / Multipliers".
A formula for calculating the multiplier for adapting non standard clamps is:
Afsd = clamp full scale amps
Note: This web page does not form part of any official documentation.
© M.T.P. - 09.01.03