Bedienungsanleitung Chauvin Arnoux PEL105 (Seite 65 von 78) (Englisch)

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9.1.2.2. Locking of the sampling frequency

As default, the sampling frequency is locked to V1.

If V1 is missing, the instrument attempts to lock to V2, then to V3, I1, I2, and I3.

9.1.2.3. AC/DC

The PEL makes AC and DC measurements for AC and DC distribution networks. AC or DC is selected by the user.

The AC + DC values are available with PEL Transfer.

9.1.2.4. Neutral current measurement

Depending on the distribution network, if there is no current sensor on the IN terminal, the neutral current is determined by calculation.

9.1.2.5. "200ms" quantities

The instrument calculates the following quantities every 200 ms on the basis of measurements on 10 periods for 50Hz, 12 periods

for 60Hz, and 80 periods for 400Hz, as indicated by Table 21.





9.1.2.6).



9.1.2.6. "1 s" quantities (one second)

The instrument calculates the following quantities every 200 ms on the basis of measurements on 50 periods for 50Hz, 60 periods

for 60Hz, and 400 periods for 400Hz, as indicated by Table 21.



the real-time values

the trends

9.1.2.7).





9.1.2.7. Aggregation

An aggregated quantity is a value calculated over an aggregation period as indicated by Table 22.

The aggregation period always starts at the beginning of an hour or of a minute. The aggregation period is the same for all quanti-

ties. The possible periods are the following: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60 min.

All aggregated quantities are recorded on the SD card during the recording session. They can be displayed in PEL Transfer (See § 5).

9.1.2.8. Minimum and maximum

The Min and Max are the minimum and maximum values observed during the aggregation period considered. They are recorded

with their dates and times (see Table 22). The Max of some aggregated values are displayed directly on the instrument.

9.1.2.9. Energy calculations

The energies are calculated every second.

The total energy is the demand during the recording session.

The partial energy can be determined for one of the following integration periods: 1h, 1 day, 1 week or 1 month. The partial energy

index is available only in real time. It is not recorded.

On the other hand, the total energies are available with the data of the recorded session.

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