Maintenance
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7 Maintenance
7.1 Calibration
Devices in commercial use:
l All calibration-relevant functions are located on the pluggable calculator module.
l Device-specific settings are stored redundantly in the lower housing part.
l Disassembling the lower housing part with field wiring is not required for calibration.
u Perform a periodic recalibration according to national calibration law.
u Exchanging the calculator [}p.52] for calibration.
u Calibrate the energy meters every five years.
u Reset the meter readings of the new calculator to 0 in case of processing after calibration.
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