New Cosmos Electric KS-7D, Instruction Manual

Page: 19 / 40

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If the unit is returned to normal operation mode
while
in the Maintenance mode, the
“concentration value” and “- - - -” will be
alternately displayed and the maintenance icon
will remain displayed.
7-4-2. Switching Maintenance Mode On/Off [Mode1]
1) Enter the User mode. Press the
▲
/
▼
button to
select
“1”. (each press of the button is followed by
one beep)
“MT” and “1” will be alternately
displayed.
2) Press the maintenance button. (one beep)
“OFF” will flash.
3) Press the
▲
button. (one beep)
“ON” will flash.
4) Press and hold the maintenance button for 3
seconds (beep pattern: short
–
long
–
short
–
short) to
confirm the selection.
The maintenance icon is displayed, and
“1” and
“MT” will be alternately displayed, indicating that
the unit is in the Maintenance mode.
5) To leave the Maintenance mode, take the steps 1)
to 4) above to switch the mode from
“ON” to "OFF".
Confirm the maintenance icon has turned off.
During the Maintenance mode, the external relay contacts and audio alarm are disabled.
Turn off the Maintenance mode during normal operation.
WARNING
Maintenance icon
NOTE