11
•
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 MR3000SB contains CMOS devices and, when serviced, care must be taken to prevent
damage due to static electricity. For a security reason, first the MR3000SB 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 MR3000SB with AC power is shown.
DC VERSION
In Figure 2.4.2 the internal view of the MR3000SB 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
7) Device switch (fuse)
8) AC/DC converter
9) Relays terminals
10) DC board
For the DC version, the AC/DC converter is replaced by a dedicated board for an external DC
power.