BERTHOLD TECHNOLOGIES Junior LB 9509, Руководство по эксплуатации, Страница: 19 / 48

junior 2.
Instrument Set-Up
19
2.5 Power Supply
The junior operates with an input voltage of 5,9-6 V. The
instrument can be run by means of either the power supply or
the rechargeable batteries.
When the instrument is connected to the power supply and it
is switched on, the batteries will be charged. Simultaneously,
the
junior can be operated.
Use only the power supply provided with the instrument
(BERTHOLD TECHNOLOGIES ordering number 68052).
Battery type
Ni/MH 4000mAh
Operating time without mains supply
6 h
Charging time while operating 4
– 5 h.
Frequent partial depletion and recharging of batteries,
together with aging, lowers their capacity. In order to reduce
this, batteries should be completely discharged and
recharged at regular intervals.
A warning message is displayed 15 minutes before the
batteries become completely discharged. This is indicated by
the message:
Battery empty! The instrument then shuts
down.
Use only the recommended rechargeable batteries!
The built-in real-time clock is maintained by means of a
lithium battery (durability
– min. 5 years – lasts usually
approx. 10 yrs).
2.6 Software
The user software is set up in a series of menus accessed
and controlled by using 6 function keys. The software,
parameters, and up to 2000 measurements are stored in the
non-volatile memory.
The software will recognize overload conditions that could be
caused by excessive light emissions from a sample and
display the warning message:
Overload .
For software operation, see Chapter 4.