Herutu 21UD, Instruction Manual, Page: 73 / 84

21UD
65
Maintenance
8. Handling precautions
[1] If you use the setting of using working hour, the machine maintains the displayed data
after the working hours are over. Thus, you need to turn off power once or press the [CLR]
key before the start of working hours.
(Unless the previous day’s data is cleared, the machine will not start the Plan/Advancement
calculation.)
[2] Assume a case where the clock time is changed after the start time of working hours. If the
time is put back, the machine operates erroneously, recognizing that 24 hours or more have
elapsed. In this case, press the [CLR] key after you have put back the time.
For example, if the clock time is changed to 8:27 at 8:30, then the machine takes it for 8:27
on the next day.
[3] It is imperative that the machine be switched on before the start time of working hours. If it
is switched on after that, the machine fails to operate normally. For the machine takes it for
recovery from a power failure because it is within working hours and recognizes 24 hours or
more have elapsed.
In such a case, press the [CLR] key after you have switched on the machine.
[4] Most of the causes for abnormal operation of the machine are attributed to the Working hour
setting, the Tact setting, and the above [1]/[2]/[3]. When the machine does not operate
normally, try pressing the [CLR] key after re-checking if the Working hour, Tact, and Clock
are normal.
If the machine still does not return to normal condition, please contact us because a
machine trouble is suspected.
[5] When it becomes impossible for the period of the data backup and the clock to shorten or
to backup, it is necessary to exchange the battery. It might be consumed.When you have
to exchange, contact the AGENT or through which you purchased the product or our
office.
[6
] If the battery of data back up is not used for a while, the battery doesn’t charge it enough and
cannot be backed up. Please turn on Power for while. It is necessary for the full charge for
24hours. If you don’t use the machine over 3-6 months, please charge for full charge for 24
hours every 3-6 months to maintain performance of battery.
[7] If you press the [ENT] key after this, the value you input will be set as the planned quantity.
If you have inadvertently set a wrong data, press the [CLR] key and re-input the correct data.