Electric energy meters are fundamental elements for measuring energy consumption and generation in industrial, commercial, and service installations. In certain situations, it may be necessary to reset the energy meter, either to start a new analysis period, adapt to changes in the installation, or facilitate maintenance and energy control tasks.
In this article, we explain what a meter reset is, when it's advisable to use it, and which SACI models have this functionality.
What is the reset of an energy meter?
Resetting a meter involves restarting certain cumulative energy records or data stored in the equipment.
This function is especially useful when you need to:
- Start a new measurement period.
- Carry out comparisons of consumption between different time intervals.
- Check the operation of an installation after a modification.
- Adjust parameters related to electrical measurement.
- Facilitate energy audits or preventative maintenance tasks.
Depending on the model, the reset may affect only partial energy logs or the entirety of the accumulated values.
Partial reset and full reset
Partial reset
The partial reset allows all partial energy records of the meter to be zeroed, without affecting the accumulated total meters.
For example, if the equipment records total imported active energy and partial imported active energy, pressing the partial reset button will reset the partial values. However, the total active energy will continue to be accounted for from the equipment's initial startup.
This way, it is possible to start a new monitoring or analysis period without losing the complete consumption history recorded by the meter. This functionality is particularly useful for:
- Monthly or weekly tracking of consumption.
- Comparison of production periods.
- Energy audits.
- Consumption control by departments or processes.
- Energy savings verification after implementing improvements.
Global reset
The global reset clears all accumulated energy records from the meter.
This type of reset is typically used when making significant changes to the measurement configuration, such as modifying the transformation ratio of current transformers, or when it is necessary to completely restart the energy accounting of the installation.
Why might it be necessary to reset an energy meter?
In industrial and commercial facilities, energy consumption is often analysed over specific periods to optimize costs and improve efficiency.
Reset allows for:
- Obtain independent measurements for each analysis period.
- Facilitate energy audits.
- Check the correct configuration of current transformers.
- Reset records after a technical intervention.
- Keep a more accurate track of the energy consumed or generated.
SACI energy meters with reset function
SACI has several meter models that incorporate reset functions tailored to different installation needs.
The TCIL2 offers
- Active energy meter reset.
- Partial reset of recorded data.
This functionality provides great flexibility for energy tracking and consumption control over different periods.
The TCIL1 allows:
- Reset the global counter. This feature ensures measurement consistency after changes to the installation's configuration.
The accountant M2DL1 incorporate
- Partial meter reset. A practical solution for periodic monitoring of energy consumption.
The model M1DL3-MID has:
- Partial reset of the meter. Especially useful for applications where detailed tracking of energy consumed over different periods is required.
The TCIDL3-MID features:
- Partial reset of the meter. Allowing for more flexible management of recorded energy data.
Summary table:
| Model | Type | Partial reset | Full reset |
| TCIL2 | Three-phase | ✓ | ✓ |
| TCIL1 | Three-phase | – | ✓ |
| TCIDL3-MID | Three-phase | ✓ | – |
| M1DL3-MID | Single-phase | ✓ | – |
| M2DL1 | Single-phase | ✓ | – |
Advantages of partial reset in energy management
The ability to reset partial logs without affecting total meters offers significant advantages for energy monitoring:
- Allows new analysis periods to be initiated without losing accumulated historical data.
- Facilitates the comparison of consumption between different time intervals.
- Help to evaluate energy efficiency and savings measures.
- Simplify the creation of regular consumption reports.
- It always keeps the total registered energy data available from the time the equipment was commissioned.
Frequently asked questions
No. In SACI meters, the partial reset only restarts the partial energy records. The total meters continue to accumulate energy from the equipment's very first activation, preserving the installation's complete history.
When you wish to start a new energy monitoring period, compare between time intervals, or analyse the impact of energy-saving measures without losing accumulated historical data.
The global reset is typically used when significant changes occur in measurement settings, such as modifications to the transformation ratio of current transformers, or when accumulated energy data needs to be completely reset.
Frequently asked questions about resetting SACI meters
The TCIL2, M2DL1, M1DL3-MID, and TCIDL3 MID models incorporate a partial reset function for the energy registers.
TCIL1 and TCIL2 allow for a total reset of the counter.
The TCIL2 allows for the resetting of the active energy counter and also for a partial reset of the energy data. The partial reset zeroes all partial energy registers, whilst the total counters continue to accumulate energy from the equipment's start-up.
The TCIL2 has active energy meter reset and partial data reset. For the exact scope of each function according to the application, it is recommended to consult the technical documentation of the equipment.
The TCIL1 allows a global reset of the counter when the transformation ratio of the current transformers (CTs) is modified. This ensures the consistency of the recorded energy measurements.
When the transformation ratio of current transformers is modified, TCIL1 allows resetting the global counter so that new energy data is recorded correctly according to the new configuration.
Yes. The M2DL1 incorporates a partial reset function, which allows all partial energy registers to be reset without affecting the accumulated total counters.
Yes. The M1DL3-MID meter has a partial reset, making it easier to track consumption for periods without losing the total history recorded by the device.
The TCIDL3-MID has a partial reset function, allowing all partial energy registers to be reset and a new analysis period to commence while keeping accumulated total values intact.