Tamper Protection; Sealing; Fraud Detection - Landis+Gyr E470 Series User Manual

58/143
7.2

Tamper protection

7.2.1

Sealing

7.2.2

Fraud detection

© Landis+Gyr
The meter features the following tamper protection measures:
1. Sealing: The meter case, the terminal cover and the ICHI are protected
by means of seals.
2. Fraud detection: The meter detects strong magnetic fields and removal
of main cover and terminal cover and such events are recorded in the
meter security log.
3. Security log: The security log contains all events related to the detec-
tion of fraud attempts e.g. removal of terminal cover, removal of meter
main cover, credential update, unauthorised GBCS access, etc.
The meter sealing points are shown in Figure 1 in section 4 "Physical
description".
The meter supports the following fraud detection features:

Detection of terminal cover removal

Detection of main cover removal

Detection of strong DC (magnetic) field
If a terminal cover removal, main cover removal or strong magnetic field is
detected, the corresponding event is triggered and stored in the security
log.
The detection of a strong magnetic field is achieved using the on-board
measurement chip. Since magnetic fraud is detected by the measurement
chip, the detection can only be done when the meter is properly powered
from mains.
The meter can also be configured to disconnect the supply load switch on
detection of a tamper event. Where disconnection has been configured the
contactor state is changed to ready-for-reconnection.
D000058620 en a – E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
Issue 1.2 Security aspects