Lauda Mobifreeze M270, Operation Manual, Page: 56 / 94

1. Acknowledge the alarm in the alarm window.

The alarm screen closes.

A red alarm symbol is displayed at the top of the Touch operating
unit.

The alarm symbol disappears automatically once the cause of the
alarm has been rectified.
7.9 Internal data logger and history function
1. Press the [Data logger, history] tile.

"Controller 1" view opens.

Different views can be selected (1 h, 6 h, 12 h, 1 day, 7 days, 31
days, 1 year).
2. To retrieve past records, press the [History] tile.

A window for setting the start date and end date opens.
3. Select the required date range and press [OK] to confirm.

The information for the selected period is displayed.
4. Press either the [Hour] or the [Day] tile.

The display reverts back to the current view.
7.10 Device operation with safety cooling
If the power supply from the mains supply and main battery fails, the set
temperature can be maintained using dry ice (solid carbon dioxide (CO2)).
DANGER!
Gas displaces atmospheric oxygen or negatively affects oxygen
absorption
Danger of asphyxia

Ventilate rooms adequately.
Disabling the acoustic alarm and rectifying
the cause of the alarm
Fig. 71: Alarm icon
Fig. 72: Data logger icon
Fig. 73: Control curves – History
Fig. 74: History
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