10
４．HOW TO USE
４−１．Before operation
Be sure to keep caution items of use not only for first user but for already experienced staff.
If not keep these caution items, the unit may be defective and correct gas detection may not be performed.
４−２．Mounting/dismounting procedures
Indicator/alarm unit for RM-590 series shall be used after housing it in either exclusive single case or multi-unit
case.
(1)Mounting method
・Open the front cover of this unit.
・Confirm that the power switch is at OFF.
・With the disengagement lever at down position, mount into the case.
（Confirm that the edge connector is put in firmly）
・Confirm that the disengagement lever is turned upward when indicator/alarm unit is mounted into the case
firmly.
・After confirmation of lever position, put ON the power switch, and then, close the cover.
(2)Removal of the unit
・Open the front cover of this unit.
・Confirm that the power switch is at OFF.
・Push disengagement lever down to release the lock.
・Pull out the unit from the case.
・Turn the lever upward and close the cover.
Mounting/dismounting of indicator/alarm unit shall be done according to the above
procedures. If not, stopping metal of the unit may be transformed and the cover
can not be closed.
CAUTION
