SMC Networks LFE0 Series, Руководство по эксплуатации, Страница: 45 / 68

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No.LFE****-OMZ0013
■[F30] Accumulated flow value hold
The default setting is to clear the accumulated flow value when the power supply is turned off.
This function enables the accumulated flow value to be stored in permanent memory every 2 or 5 minutes.
The maximum writable limit of the memory device is 1 million cycles. Therefore, calculate the number of
times and use within the life.
If the product is operated 24 hours per day, the product life will be as follows:
Data memorized every 5 minutes --- 5 minutes x 1 million cycles = 5 million minutes = 9.5 years
Data memorized every 2 minutes --- 2 minutes x 1 million cycles = 2 million minutes = 3.8 years
<Operation>
Press the or
button in function selection mode to display [F30] on the main screen.
The sub screen displays [SAVE] and the current set value in turn.
Press the button.
Sub screen
Press the or button to select the accumulate flow value hold.
Press the button to set. Return to function selection mode.
[F30] Setting of accumulated flow value hold complete.
*: Data is stored every 2 or 5 minutes (depending upon the setting chosen). This means that the
accumulated flow value for up to 2 or 5 minutes before the power supply is turned off will not be added to
the device memory.
When the power supply is turned on again, the accumulated flow count will start from the last value
recorded at B
Memorize Memorize Power supply OFF
The grey part is not added.
Every 2 min. Every 5 min.
2min./ 5min.