Almeco ALMEMO V5 5990-2, Руководство по эксплуатации

Страница: 14 / 77

Tips regarding the correct handling of rechargeable batteries:
In most cases, the batteries supplied are not charged when delivered!
If NiMH cells are only partly discharged, the full capacity cannot be
reached by a normal recharging.
Therefore,use the device until the batteries are nearly totally discharged.
Completely recharge the batteries afterwards.
As a result, the life of the batteries is significantly increased.
Completely recharged batteries will slowly discharge during storage,
therefore, they should be charged at least once per month.
The current battery voltage can be checked in the device configuration,
allowing an estimation of the remaining operating time.
3.3 External Power Supply (Option U)
If the instrument is intended to have an external voltage supply the power
supply plug-in module with option U (OA 5590-U) is required. It has a wide
input voltage range from 10 to 36V DC and an electrical isolation allowing that
the instrument can be operated with 12V or 24V mains supply. The cable ZB
5090-EK with 2 banana plugs (1e) must be used for the connection. However,
the mains adapter ZB 5090-NA3 still allows for operation with mains supply.
3.4 Switch On/Off, Reinitialisation
As soon as a suitable voltage supply has been connected, the green indicator
lamp PWR on the front panel (4) lights up. If an accumulator battery is in-
stalled, this lamp also functions as charge indicator; (see Section 3.2).
The device is switched on by actuating the rocker switch (4); the red “ON” lamp
then lights up indicating that it is ready-to-operate.
After switch-off the real time clock continues its operation and all stored data
remains available by a buffer battery (see 3.5). If the device was operating in a
measurement menu before switch-off it will return to the corresponding menu
after switch-on, otherwise the main menu will be displayed.
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 F1 is pressed during switch-on. All internal data such as
maximum and minimum values and the data memory will be cleared and the
user menus will be set to the delivery defaults. 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.
14 ALMEMO
®
5990-2
Power Supply