Industrias Parmo
Portable meter tester and phantom load
Field case that checks energy meter accuracy by pulse comparison, plus a 660 W phantom load for the stopwatch test.
The tester takes 1S, 12S and 16S meters, electronic and electromechanical, tests phase by phase to catch bypasses and works with bidirectional meters. Its internal reference was calibrated against a reference standard.
The phantom load plugs into the meter socket and detects whether the service is single or two-phase.
What we did
- Control and switching boards, and firmware
- Case with laser-cut stainless steel panel and touch screen
- Design calculations, calibration and validation procedure
- Phantom load: electronics, firmware, mechanics and manual
Technical data
| Meter forms | 1S, 12S, 16S |
|---|---|
| Methods | Pulse comparison and stopwatch |
| Display | 3.5" touch screen |
| Phantom load | 660 W ±4 %, 127–220 V |
| Year | 2023–2026 |




