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2.3.1. List of errors and warnings
In the following, a list of the warnings and errors is presented, corresponding to the activation of the
Error LED.
SD card
• No SD card detected ERROR
• Capacity is less the 20% WARNING
• No more free space ERROR
• Lifetime is less than 20% WARNING
• Lifetime expired ERROR
Battery
• Battery is not powered WARNING
• Voltage Please refer to Section 5.3.13
Test pulse
• Test pulse did not succeeded WARNING
2.4 Opening the Lid
WARNING – Static Electricity
The MR3000DMS contains CMOS devices and, when serviced, care must be taken to prevent
damage due to static electricity. For a security reason, first the MR3000DMS should be
disconnected from the AC. Successively you can open the lid and disconnect the fuse in order to
protect all the internal components from any wrong manipulations that might occur.
AC VERSION
In Figure 2.4.1 the internal view of the MR3000DMS with AC power is shown.
DC VERSION
In Figure 2.4.2 the internal view of the MR3000DMS with DC power is shown.
The most important components are:
1) Internal display
2) MEMS accelerometer (under the display)
3) SD-Card
4) Real-time clock with internal backup battery
5) Battery
6) ST connectors
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