23 Security functions Page 112 of 142
MCS301 meter - product Manual 1.25 MetCom Solutions GmbH
23.8 Summary of Anti Tampering features
Below Anti Tampering Features are supported by the meter:
• Terminal cover opening detection
To manipulate the meter in most cases the terminal cover has to be opened. This event
can be stored with time and date stamp.
• Main cover opening detection
The opening of the certified main cover is detected in the same way like the terminal
cover opening.
• Magnetic manipulation detection
In case a big magnetic is used nearby the meter this event will be detected
• Security concept
The tampering of the meter configuration is secured by different security levels (LLS
and/or HLS).
• Log file
All tampering issues, power outages, etc. can be stored with time and date stamp in
the log file of the meter
• Detection of anti-creep conditions
The duration of anti-creep conditions can be measured by the meter. This can be used
as an indication of meter manipulation.
• Always run positive measurement
The meter can be configured in that way that it always the total energy is measured,
even in the case of reverse energy flow.
• Reverse run detection
The reverse energy measurement can be used for detect tampering. In that case the
exact “tampered energy value” is available
• Wrong password access
In case several times a wrong password is used, the communication will be blocked by
the meter until the next demand reset.
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