Tailored for electrical power systems, the Megger PAM420 Multi-Function Meter delivers precise measurements of phase angle, voltage, current, frequency, and timing, making it ideal for tasks like polyphase metering checks, protective relay testing, and transformer phase deviation verification. It measures phase angles from 0 to 359.9° with 0.1° resolution and ±0.5° accuracy at >10% of its 0–500 V or 0–25 A range, supporting current-current, voltage-voltage, or mixed inputs. Dual channels handle true RMS voltage and current, while a 10–1000 Hz frequency range offers 0.01 Hz precision. The high-accuracy timer, spanning 0–999.999 s with 1 ms resolution, suits contact or voltage-triggered applications.
At just 1.2 kg, its IP21-rated design includes a rechargeable Li-ion battery, a 9 V DC adapter, and a rugged transport case for field durability. A backlit LCD ensures readability, and a 2 m test lead set with safety plugs simplifies connections. Operating from -10°C to 50°C, the PAM420 supports external CTs for extended current ranges, empowering engineers to maintain substation reliability and troubleshoot critical power infrastructure efficiently.
