26
SETTING OF ALARM RESUME TIME
The buzzer is silenced by pressing alarm buzzer stop key (BUZZER) on the control panel during alarm
condition.
The buzzer will be activated again after certain suspension if the alarm condition is continued. The
suspension time can be set by following the procedure shown in the table below.
The example in the table is based on the assumption that the desired duration is 20 minutes.
Note:
The factory default setting value is 30 minutes duration.
Table Changing procedure for alarm resume time (Ex: change from 30 minutes to 20 minutes)
Description of operation
Key operated
Indication after operation
1
----
The current chamber temperature is displayed.
2 Press calibration key for 5 seconds.
The left digit blinks.
3
Set the figure to F25
with the digit shift key
and numerical value shift key.
The settable digit is shifted.
When pressed, the figure of
settable digit changes.
4 Press enter key.
ENT
The current setting is displayed
in digital CO
2
density indicator.
The middle digit blinks.
5
Set the figure to 020 with the
numerical value shift key.
When pressed, the figure of settable
digit changes.
6 Press enter key.
ENT
The setting is memorized and
the current chamber temperature is displayed.
• The settable alarm resume time are 0, 10, 20, 30, 40, 50, or 60 minutes (The setting is 000, 010, 020,
030, 040, 050 or 060 respectively). The buzzer would not reset if the resume time is set in 000.
• The set mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation. In this case, any setting before pressing enter key is not memorized.
WARNING
Do not use calibration key (CAL)
on the control panel in normal use. Pressing this key leads the
calibration mode. Wrong key operation affects the basic performance. Never touch any other keys on
the control panel in the event of pressing calibration key (CAL) accidentally. After about 90 seconds, the
unit returns to chamber temperature display mode automatically.
Operation after power failure
The set value is memorized by nonvolatile memory. Accordingly, the incubator resumes the operation
with setting before power failure.
