Eppendorf S Series 48S CO2 Incubator - Manual (Page 23)

23
New Brunswick Scientific User’s Guide
3. Press the
enter key to save the desired value.
3.7.4 Alarm
Duration
The following steps will adjust the length of time during which all audible
alarms will last:
1. In the alarm menu (see step 1 of Section 3.7.1 above), press the S
key. The
display shows
Per
.
Iod
(reading across both displays).
2. Press the
enter key and the S & T keys to adjust the Alarm duration (as
you scroll through the available choices, you will see
OFF
,
10 sec
,
30 sec
,
60 sec
,
600 sec
,
1 Hr
, then
ON
).
3. Press the
enter key to select the desired value.
3.7.5 Alarm Arming Delay
This is the length of time that is allowed for the Temperature and CO
2
to recover
after you open the incubator, and before the Alarm System is armed again. This
helps prevent unnecessary alarms from occurring. To change the delay:
1. In alarm menu (see step 1 of Section 3.7.1 above), press the S key. The
display will show
dr
.
dEL
(across both windows).
2. Press the
enter key and the S & T keys to adjust the Alarm Arming time
(as you scroll through the available choices, you will see
0
.
15 Hr
,
0
.
20
,
0
.
30
,
1
.
00
, then
OFF
).
3. Press the
enter key to select the desired value.
Press ¤ to return to the main alarm programming menu, and press ¤ again to
return to the main display.
NOTE:
When alarm delay is set to OFF, the Alarms will arm only when the
programmed setpoint is reached.
3.8 Chamber Alarm System
When the incubator is switched ON , or after any values have been reprogrammed, the
Alarm System is inactive until the setpoint values (± 0.1) are achieved, after which the
Alarm System is armed. See Figure 7, Chamber Alarm System Flow Chart, on the
following page.