17
REMOTE ALARM TERMINAL
The terminal of the remote alarm is installed at the back of the unit. The signal is contact output. The
contact capacity is 2 A (DC 30 V) .
a) Contact output : normal open connect with N.O. and COM.
b) Contact output : normal close connect with N.C. and COM.
Consult our dealer or our office for installation of the remote alarm.
ALARMS AND SAFETY FUNCTIONS
This unit has the alarm and safety functions shown in table below, and also self diagnostic function.
Table 4. Alarm and safety function
Alarm & safety
Situation
Indication
Buzzer
Safety operation
High temperature
alarm
When the chamber temp. is
approx. 10
o
C (or 15
o
C) higher
than the set temp.
Alarm lamp blinks.
Intermittent
tone with
about 12
min. delay.
Remote alarm
with 12 min. delay.
Power failure
alarm
At power failure
When power cord is
disconnected.
Alarm lamp blinks.
Intermittent
tone.
Remote alarm.
Filter check
When the condenser filter
is clogged.
Filter check lamp blinks.
Intermittent
tone.
-----
Auto-return
When there is no key
pressing in each setting
mode for about 90 seconds.
Chamber temp. is
displayed.
-----
Finishing of each
setting mode.