Hikari HK2900, Instruction Manual

Page: 135 / 195

54
3.Restore to factory default settings
When users change some parameters which already are set before delivery by accident or when
the control system break down, may use “restore to factory default settings” function, to recover
the system.
Attention: if restore to factory default settings, all the data set by users will be covered,
carefully consider when use this function, if not clear, should contact technicians from the
manufacturer, operate as their instruction.
Specific steps are as follows
：
1
、
When LED light is off
，
press , display
，
then press simultaneously
，
after hearing the buzzer sound
，
that means the service parameter change starts;
2
、
Press
、
to choose parameter 67
：
3
、
press ,the LED light is on
，
then press
、 ，
to choose software version
number you need;