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CHAPTER 2. GETTING STARTED
2.3 Instrument Operational Test
Once this procedure has been completed, the instrument is ready for use.
2.3.1 Turning the Instrument On
Turn the instrument ON by pressing the ON/ACK button for about a second, and then re-
leasing. The instrument should activate all the LCD segments and the audio. Observe the
device during this time. If any LCD segments are missing, or audio fails to work, the device
is in need of repair. Please refer to Figure 2.1.
Figure 2.1: Startup Display (All Segments Shown)
The instrument then displays the firmware version. Please refer to figure below.
Figure 2.2: Firmware Version Display
Note:
Firmware versions with Bq units are equipped with auxiliary communication.
Beginning with the n42 version firmware, the tick marks below the firmware number define
the board generation which will help with future firmware updates. Once n42 is installed,
the user will no longer have to open the instrument to determine which version of the main
processor board was used in the instrument. Instead, use the following table to determine
which main processor board is installed in the instrument:
• 1 tick - 5498-440
• 2 ticks - 5519-042
• 3 ticks - 5519-773
Ludlum Measurements, Inc.
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