Isolated AC Mains Telemetry (ZMPT101B)

The ZMPT101B module provides industrial-grade AC mains voltage monitoring without risking high-voltage exposure to your logic circuitry. Utilizing a highly accurate micro-voltage transformer and an onboard operational amplifier, this module safely steps down and conditions AC signals (up to 250V) into a clean, readable analog waveform directly proportional to the mains voltage.

Engineering Advantage:

Strict galvanic isolation makes this module mandatory for safety-critical industrial boards. When paired with high-current telemetry sensors (like the WCS series), engineers can calculate exact real-time power (True RMS Wattage). Calibration is heavily streamlined for developers; the onboard multi-turn potentiometer allows you to dial in exact amplitude scaling right on the bench, ensuring perfectly tuned ADC readings when compiling your custom metering sketches in environments like Arduino IDE 2.0.4.

Technical Specifications:

• Operating Voltage (Logic): 5V DC
• Measurement Range: Up to 250V AC (Single Phase)
• Output Signal: Active analog output (proportional sine wave)
• Isolation: Full galvanic isolation via internal micro-transformer
• Core Applications: Real-time AC grid monitoring, EV charger input voltage verification, elevator phase-monitoring cards, and industrial power supply diagnostics.