Gram Scientific COMPACT 600 Mode D'emploi page 38

To trigger a Low temperature alarm (AL) the cabinet temperature must be below LAL = -
29°C for more than dAL = 20 minutes. This will result in
alternating between AL and the present cabinet temperature.
Once the temperature goes above -27°C (LAL + Atd) the alarm changes from present to
being logged. The display will show current temperature and
there has been a temperature alarm.
Temperature alarms
The following temperature alarms can be displayed:
Ah Alarm high temperature
AL Alarm Low temperature
If an alarm occur, Ah or AL will be shown alternating with the current temperature.
If the temperature gets back within the accepted limits, the current temperature will be
shown in the display and
be turned off, but the alarm will still be kept in the alarm log.
Displaying alarms:
The temperature alarm log stores information related to the latest 10 temperature alarms
(named A 1 to A10). If a new alarm occurs the oldest alarm (A10) will be erased.
Push once to open the log.
• If there is no present or logged temperature alarm the display will show "no" flashing
for 4 seconds. After that the controller will revert to normal operation.
• If there are present or logged temperature alarms the display will show the most
recent temperature alarm being:
A 0
A 1.. A10
Once the cabinet temperature, related to a present temperature alarm (A 0), is no longer
outside the alarm ranges, this A 0 alarm becomes the new A 1. Etc.
Use and to navigate between the different alarms.
Push to open a temperature alarm in order to show:
Example 1 – alarm A 0: (Present temperature alarm)
Ah Indicating it is a high temperature alarm (AL indicating a low temperature alarm)
10.0 the maximum temperature in °C during the alarm (If AL the minimum temperature)
dur alarm duration until now
01h the alarm has been ongoing for 1 hour
.... and 15 minutes
15'
Example 2 – alarm A1 to A10: (alarms in the log – not present)
Ah Indicating it is a high temperature alarm (AL indicating a low temperature alarm)
11.0 the maximum temperature in °C during the alarm (If AL the minimum temperature)
dur alarm duration
01h the alarm lasted for 1 hour
.... and 15 minutes
15'
tSE time since the end of the alarm
08h the alarm ended 8 hours ago
765042499
will remain lit until the alarm has been reset. After 3 days
Present / ongoing temperature alarm.
Not present temperature alarms logged
(maximum 99 hours)
Rev. 001
being lit and the display
will remain lit indicating
will
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