AcuAMP Current Transducers (Adaptive True RMS)

ACTH Series AC Current Transducers

• Zero-crossing burst fired SCR controllers
• Faster response than temperature sensors.
• Simplest method to monitor pulsed waveforms.
• Electrical heater applications

ACTH Series (Adaptive True RMS)

Monitoring the current controlled by silicon-controlled rectifiers (SCRs) can be a challenge, especially the current used by heaters. Zero-crossing burst fired controls allow current to flow to the circuit for as short of a time period as one cycle, and off for several cycles. Most current sensors will not work well when there is no current present. When used to monitor zero-crossing burst fired SCRs, the ACTH series uses an innovative time integration adaptive true RMS measurement method that will provide an output signal directly proportional to the RMS amperage even when the SCR controller is providing power in one cycle increments.