MOD-7S12A

TRUE-RMS – 3½ DIGITS AMMETER

The MOD-7S12A is an advanced, low cost True -RMS ammeter
which computes the true – root – mean – square value of
complex signals. AC coupling allows the measurement of
the component (or ripple) from a signal with both AC and DC
components. DC coupling allows the measurement of total RMS
or “heating value” including DC and AC components to over
30kHz. Maximum crest factor (Ap/Arms) is 3:1. Screw terminal
allows the selection of AC/DC coupling. True -RMS ammeter
are especially useful in monitoring voltage supply to motors
or heaters controlled by SCR or Triac circuit. For AC currents
over 5a and isolate the meter to avoid common mode
problems.The current transformer specified by turns ratio
such as 200:5.

Technical data