Switch On/Off, Reinitialisation; Data Buffer - Ahlborn ALMEMO 6290-7B Operating Instructions Manual

Power Supply

3.4 Switch On/Off, Reinitialisation

The instrument can be switched on by using the key ON/OFF. The instrument
can be switched off by using the same key or automatically when the
rechargeable battery is discharged. However, the real time clock continuous its
operation and all stored data remains available by a buffer battery (see 3.5). To
avoid the instrument being unintentionally switched on or off, the user
operation can be blocked by using the key switch on the back.
If the device shows an irregular behaviour due to interference influences (e.g.
electrostatic charging or discharged buffering battery) or if incorrect
programming must be avoided, the device can be reinitialised.
The reset can be achieved if the key Clr is pressed during switch-on. All
internal data such as maximum and minimum values and the data memory will
be cleared. Furthermore, cycles, time, date and device address are set to zero
and the conversion rate and atmospheric pressure will be set to the standard
values. However, the device configuration and the sensor programming within
®
the ALMEMO connectors will not be affected by the reset.

3.5 Data Buffer

The sensor programming is stored in the EEPROM of the sensor connector,
the calibration of the instrument is fail-safe stored in the EEPROM of the
instrument. The instrument, measuring data, as well as the time and date are
buffered by the lithium battery so that storage of the data is also guaranteed
when the device is switched off or when the batteries are discharged.
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