BB106411.book : 2237-ch2 Black 2
Chapter 2 – Getting Started
Fitting Batteries
2–2
Brüel & Kjær2237 Controller
User Manual
2.1 Fitting Batteries
2.1.1 Checking the Battery Level
The battery symbol in the upper right hand corner of the
Measurement Window indicates the current battery level.
When the battery is full, the battery level indicator is fully
black. As the batteries are used, the level will fall until the
indicator is completely empty. When it is time to replace the
batteries, the indicator will be empty and blinking.
The battery level indicator has five lines of pixels in it (in-
cluding the tip). Each line represents approximately 2.5 hours
of remaining battery time (at room temperature). When the
indicator is blinking, there is less than one hour left. Under
extreme cold or hot environments, the remaining time may
be less.
Fig.2.1 Location of the battery level indicator
Battery Level Indicator
RUN 00:05:41
MaxP 94.7 dB
AF Leq 45.8 dB
30 100
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