Download QNA 412

6.- THE QNA-412 ANALYZER'S INTERNAL BATTERY
The analyzer has an internal battery to ensure power supply to the analyzer when
any event occurs. This battery keeps the analyzer continuously powered as a default
for 15 minutes without mains supply for a maximum of 9999 seconds in the event of
the mains power supply being cut. This operating period after voltage supply loss is
user-programmable in order to save the battery and to ensure that any possible
intermittent voltage interruptions are detected.
The guarantee of a 9999 second operating period is essential to ensure the
proper detection and recording of multiple and long-term voltage interruptions.
The battery is charging when the analyzer is
connected to the mains.
The QNA-412 analyzer is equipped with an intelligent energy charging system.
This means that the instrument continuously and automatically checks the status of
the battery. This means that the charging process stops when the battery is on
maximum charge level and, therefore, the life of the battery is increased.
7.- OPERATING MODE
7.1.- Display and buttons
QNA-412 is equipped with a display to show all information being measured by
the analyzer using different buttons.
The function of each button on the QNA-412 analyzer is:
−
(Next screen): The next display screen is accessed.
−
(Previous screen): The previous display screen is accessed.
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