sames

THREE PHASE POWER/ENERGY METERING MODULE

PULSE OUTPUT

1/10

4310

PDS038-SA9105-001

Rev. B

13-09-95

FEATURES

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Performs one, two or three phase power

and energy measurement

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Meets the accuracy requirements for

Class 1 AC Watt hour meters

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Operates over a wide Temperature

Range

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Uses current transformers for current

sensing

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Three pulse rate outputs available

n

Protected agianst ESD

SA9105 APPLICATION NOTE

PM9105AF

DESCRIPTION

The SAMES three phase power/energy metering module, the PM9105AF provides three

pulse rate output options, the frequency of which are proportional to the active power

consumption.

Energy consumption can be determined by the power measurement being integrated

over time.

The method of calculation takes the power factor into account.

The output of this innovative universal three phase power/energy metering circuit is

ideally suited for energy calculations in applications using a µ-controller or mechanical

counter.

The application utilises the SAMES SA9105AF, SA9105EF or SA9105FF three phase

power metering integrated circuits for power measurement.