Hioki LR8450, Instruction Manual

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Scan Timing
U8550, U8551, LR8530, and LR8531
The following diagrams provide examples of typical scan timing for the U8550, U8551, LR8530,
and LR8531.
Example: Data refresh interval of 10 ms, measurement on for all 15 channels, wire
break detection off
Channels 1 to 15 are scanned with a duration of approximately 0.5 ms per channel.
The scan starts again with CH1 after the data refresh interval of 10 ms has elapsed.
Data refresh interval: 10 ms
About 0.5 ms
CH1 CH2 CH3 CH13 CH14 CH1 CH2 CH15
Example: Data refresh interval of 10 ms; measurement on for CH1, CH5, and
CH15; wire break detection off
Only channels for which measurement is enabled are scanned; channels for which measurement is
disabled are not scanned.
Data refresh interval: 10 ms
About 0.5 ms
CH1 CH5 CH15 CH1 CH5
Example: Data refresh interval of 5 s, measurement on for all 15 channels, wire
break detection off
Channels 1 to 15 are scanned with a duration of approximately 160 ms or 180 ms per channel,
depending on the power supply frequency filter setting.
Data refresh interval: 5 s
About 180 ms (power supply frequency filter: 50 Hz)
CH1 CH2 CH3 CH13 CH14 CH1 CH2 CH15
About 160 ms (power supply frequency filter: 60 Hz)
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Knowledge and Information