Waveform Capture; Standard Waveform Capture - Siemens 9810 Series User Manual

Power quality
Use the system frequency to calculate the number of records needed to capture 1 second of data:
• For 60 Hz, total number of records per second = 60 cycles/second x 2 half-cycles = 120
• For 50 Hz, total number of records per second = 50 cycles/second x 2 half-cycles = 100
You can use the Power Quality setup assistant in ION Setup to specify how many seconds of
pre-trigger and post-trigger data you want to capture. ION Setup automatically calculates the
required number of records based on your input.

Waveform capture

The meter's Waveform Recorder modules capture waveform data.
The Waveform Recorder module captures one waveform record every time its Record input is
triggered.
A waveform record is defined by the module's Format setup register, expressed as (number of
samples per cycle) x (number of cycles per waveform record). For example, if Format is set to
256x7, that means one waveform record is made up of 7 cycles of waveform data at 256 samples
per cycle resolution.
The meter supports 3 waveform capture types: standard, delayed, and extended.

Standard waveform capture

The meter's Waveform Recorder modules support standard waveform capture.
A standard waveform capture saves one buffered waveform record at the Record trigger time.
Only pre-trigger waveform data is captured in this mode. No post-trigger waveform cycles are
recorded.
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9410 series - User manual
7EN05-0336-09