Dynasonics DXN Portable Ultrasonic Measurement System - Manual (Page 76)

Power
The System>Power is a group of indicators reporting on the state of the internal Lithium-Ion battery.
The DXN has a sophisticated battery management circuit that ensures a long trouble-free battery life. The meter can remain
connected to the charger without fear of over-charging the battery.
The page consists of four status indicator lights and a graph showing % charge and battery temperature. The first two lights
are battery status lights and the last two indicate if the charger is connected and how many charging cycles the batter has
been through.
Site Name 0.00 GPM
1/16/2013
2:18 PM
System Site I/O Cal Adv Display Meter Log
Power Comm Update Storage ENet PC Disk Time Misc
Battery Status
Battery Not Being Discharged
Not Charging
External DC
Cycles = 28
Disable Charging
-50
-20
10
40
70
100
0
20
40
60
80
100
Degrees C %Charge
98%
46.1C
Figure 102: System Power
The first light stays lit as long as there is enough power remaining in the batter to run the meter. When the meter is connected
to the battery charger the text to the right of the light will say "Battery Not Being Discharged". When the charger is removed
the text will change to show the estimated running time before the battery becomes fully discharged. A typical status
message would be “6.5 Hours Battery Runtime”.
• The battery life indicator is continuously being updated so if the current draw from the battery increases such as the
outputs being switched on the runtime indicator will recalculate the battery life.
• The second light reports on the battery’s charging status. It will say either “Charging” or “Not Charging.” The battery
will only charge when there is a need and the charger is connected. The fact that the charger is connected does not
necessarily mean that the battery will be charging.
• The third light indicates whether the charger is connected. When the External DC light is on the charger is connected
and powering the meter. The charger may or may not also be charging the battery depending on the battery status.
• The fourth and final light is the Cycle counter and indicate the number of charging cycles the battery had undergone.
• The "Disable Charging" check box is used when the meter is going to run on AC power for a long time. The disable
charging feature prevents the battery from generating excessive heat. In some cases a lower level of noise is
also realized.
The graphs to the right of the battery status indicator show the present temperature of the battery and the percentage of
charge the battery currently holds.
DXN Portable Ultrasonic Measurement System
Page 76 February 2013