Someone knows whats is the accuracy of the Real-Time Clock of ION7650 and ION8650?
I'm looking for this information.
Thanks in advance.
The accuracy of the real-time clock on the ION7650 and ION8650 meters depends on the the setting of the time synchronisation source:
If either meter is set to use its internal crystal for its time source, the meter's clock will drift up to ± 5 ppm and to a maximum of ± 10 ppm.
This means over the course of a day the meter's clock can drift from ~0.43 to 0.86 seconds.
The actual clock drift will depend on the meter's installation temperature and how much that temperature varies over time.
If either meter is set to use a GPS time synchronisation protocol for its time source, the accuracy will be better than ± 1 msec, independent of the temperature.
In the GPS case, a meter's inputs can be used to accurately time-stamp events in Sequence of Events Recording (SER) applications:
Technical Library - Schneider Electric Schneider Electric
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