U8552 And Lr8532 - Hioki MEMORY HiLOGGER LR8450 Instruction Manual

Scan Timing

U8552 and LR8532

The following diagrams provide examples of typical scan timing for the U8552 and LR8532 when
using from 16 to 30 channels. If the number of channels in use is 15 or less, the scan timing is the
same as for the U8550, U8551, LR8530, and LR8531.
Example: Data refresh interval of 20 ms, measurement on for all 30 channels, wire
break detection off
Channels 1 to 30 are scanned with a duration of approximately 0.5 ms per channel.
About 0.5 ms
CH1 CH2
Example: Data refresh interval of 20 ms; measurement on for CH1 to CH10 and
CH21 to CH30; wire break detection off
Only channels for which measurement is enabled are scanned; channels for which measurement is
disabled are not scanned.
About 0.5 ms
CH1 CH2
Example: Data refresh interval of 5 s, measurement on for all 30 channels, wire
break detection off
Channels 1 to 30 are scanned with a duration of approximately 90 ms or 105 ms per channel,
depending on the power supply frequency filter setting.
About 105 ms (power supply frequency filter: 50 Hz)
About 90 ms (power supply frequency filter: 60 Hz)
CH1 CH2
284
Data refresh interval: 20 ms
CH3 CH28
Data refresh interval: 20 ms
CH10 CH21 CH22
Data refresh interval: 5 s
CH3 CH28 CH29
CH29 CH30 CH1
CH30 CH1
CH30 CH1
CH2
CH2
CH2