It is possible to review a pulse meter's energy registration with the 10Wh load LED by comparing it with an amp clamp's readings. The Leviton meter is going to be a higher accuracy measurement tool compared to most handheld amp clamps but this will give you a ballpark way to check the CTs are installed to the conductors that are being measured.
The load LED will usually remain on for 5 watt hours, then off for 5 watt hours. Using a stopwatch, record the time between transitions to understand the amount of power (kilowatts) the meter is seeing used across all of the CTs. The table below will assist you in the conversion.
The load LED will usually remain on for 5 watt hours, then off for 5 watt hours. Using a stopwatch, record the time between transitions to understand the amount of power (kilowatts) the meter is seeing used across all of the CTs. The table below will assist you in the conversion.
| Time between transition (sec) | Power (kW) |
| 0.5 | 36.0 |
| 1 | 18.0 |
| 2 | 9.0 |
| 3 | 6.0 |
| 4 | 4.5 |
| 5 | 3.6 |
| 10 | 1.8 |
| 15 | 1.2 |
| 20 | 0.9 |
| 25 | 0.7 |
| 30 | 0.6 |
| 60 | 0.3 |
| 90 | 0.2 |
| 120 | 0.15 |
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