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1.9
Anti-Tampering Features
1.9.1
DC Magnet Detection
1.9.2
Terminal Cover Detection
© Landis+Gyr AG
The following anti-tampering features are now available for ZxD400xT
meters:
DC magnet detection for the detection of strong magnetic fields close
to the meter. This feature is installed during the manufacturing proc-
ess.
Terminal cover detection for the detection of situations when the termi-
nal cover has been opened. This feature is a retrofit option.
The meters ZMD310xT, ZxD410xT, ZxD405xT and ZxD402CT can now be
ordered with a feature which detects strong dc magnetic fields. When a
magnetic field is present, event 134 is set; when the magnetic field disap-
pears, event 188 is set. These events can e.g. be entered into the event log
with date and time. The meter's type description informs you whether this
feature has been implemented (see 8).
Installed ZMD400 meters can be equipped with a terminal cover detection
unit. For this, they need to be parameterised and the unit – consisting of a
switch which detects the removal of the terminal cover – has to be installed.
It can be ordered from Landis+Gyr, part number 74 766 0163 0.
Whenever the terminal cover is removed, the terminal cover detection de-
tects the switch status change via control input 1 and enters event 13 in the
event log with date and time. When the terminal cover is mounted again,
event 12 is entered in the event log with date and time.
Please order terminal cover detection units (minimum order quantity 10)
from:
Landis+Gyr AG
Service & Repair
Feldstrasse 1
CH-6301 Zug
Switzerland
For installation of the unit see section 4.6 "Installation of Terminal Cover
Detection" on page 55.
D000030110 d – E650 Series 3 (ZMD400AT/CT, ZFD400AT/CT) – User Manual
Description of Unit
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