Display During The Calibration Routine; Display In Off Mode; Display In Work Mode; Power Interruption - Thermo Scientific Safe 2020 Operating Instructions Manual

6. 6. Handling and control Handling and control
6.1.2

Display during the calibration routine

The routine runs for approx 30 minutes. During this time, the display shows
alternatingly cal and the descending time value. If the calibration routine
cannot be started due to faults, the display shows cal permanently.
6.1.3

Display in OFF mode

In the OFF mode, the display shows the current time.
For the initial start-up of the device, the clock must be set to the correct time zone
and to the corresponding time output (CET mode or AM/PM mode)
(see Section 6.3.9).
6.1.4

Display in work mode

In the work mode, the display shows the values of the device data that had been
shown last (see Section 6.3.9.ff):
• Time (hours and minutes)
• Downflow velocity
• Operating hours after last filter replacement
• Performance Factor
6.1.5

Power interruption

If the master PCB of the device detects a power failure or a failure of the
power supply, a warning is issued.
Note – Power failure warning
In case of a power failure, the display goes off
after 10 seconds, then an audible alarm signal
sounds for about 30 seconds.
After this warning, the device is no longer
operative.
Operating Instructions Safety Cabinet Safe 2020 / Maxisafe 2020
Indicator and operating panel
Fig. 13
33