Gw-instek PPH-1503 User Manual download pdf (Page 49)

BASIC OPERATION

Long integration

Description

The long current integration measurement function

measures the mean (average) current over a single or

multiple current pulses. The long integration time

period must be a full period or integer multiples of a

complete period of the measured pulse current. The

Long integration measurement calculates the whole

integration time as an integer number of integration

cycles. An integration cycle is the line cycle period plus

the data processing time.

For example, if the line frequency is 60Hz, then a single

integration cycle is 16.7mS, if the frequency is 50Hz,

then a single integration cycle is must be 20mS. Long

integraton is one of the methods to extend A/D circuits

to exceed beyond their maximum integration time. The

A /D conversion circuits can measure a pulse of up to

833 mS. Long integration measurement extends the

A/D integration time to achieve a longer pulse

measurement. This can extend the measurement time

for long integration to a maximum of 60S.

Note: When this feature is used, the current range is

set to 5A.

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Gw-instek PPH-1503 User Manual Page 49