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Control functions
8.2 Switching between tari meters
The Switch between tari meters control function allows the metering slot of the multi-tari
energy meters to be switched. It is available after the TARIFF parameter has been activated
from the CONFIGURATION MEASURES menu of the sentinel Energy display, the panel
display or the Hager Power setup software.
The sentinel Energy trip unit oers the possibility of metering the consumption of electrical
energy across up to 8 tari ranges.
See Chapter 6.6 Energy measurement for more information on multi-tari energy meters.
The switching order between meters can be controlled in two ways:
- from the digital input configured to Tari for energy meters T1 and T2,
- through Modbus communication for meters T1 to T8.
The following graphic illustrates the switch of tari range on the digital input.
DI signal
T2 T1 T2 T1 T2
For information on setting the digital input see Chapter 8.1 Remote reset of the trip unit and
output contacts.
Refer to the sentinel Energy Modbus Communication user manual for management of meters
T1 to T8.
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