NivoRadar
®
Continuous level measurement
Series NR 4000
Technical information / Instruction manual
page 26
Access protection
Bluetooth radio interface
Devices with a Bluetooth radio interface are protected against
unwanted access from outside. This means that only authorized
persons can receive measured and status values and change de-
vice settings via this interface.
A Bluetooth access code is required to establish Bluetooth com-
munication via the adjustment tool (smartphone/tablet/notebook).
This code must be entered once when Bluetooth communication is
established for the first time in the adjustment tool. It is then stored
in the adjustment tool and does not have to be entered again.
The Bluetooth access code is individual for each device. It is printed
on the device housing and is also supplied with the device in the
information sheet " PINs and Codes". It can be changed by
the user after the first connection has been established. If the Blue-
tooth access code has not been entered correctly, a new entry can
only be made after a waiting period has elapsed. The waiting time
increases with each additional incorrect entry.
The emergency Bluetooth access code enables Bluetooth com-
munication to be established in the event that the Bluetooth access
code is no longer known. It can't be changed. The emergency Blue-
tooth access code can be found in information sheet " Ac-
cess protection". If this document is lost, the emergency Bluetooth
access code can be retrieved from your personal contact person
after legitimation. The storage and transmission of Bluetooth access
codes is always encrypted (SHA 256 algorithm).
Protection of the parameterization
The settings (parameters) of the device can be protected against
unwanted changes. The parameter protection is deactivated on
delivery, all settings can be made.
To protect the parameterization, the device can be locked by the
user with the aid of a freely selectable device code. The settings
(parameters) can then only be read out, but not changed. The de-
vice code is also stored in the adjustment tool. However, unlike the
Bluetooth access code, it must be re-entered for each unlock. When
using the adjustment app, the stored device code is then suggested
to the user for unlocking.
The emergency device code allows unlocking the device in case the
device code is no longer known. It can't be changed. The emergen-
cy device code can also be found on the supplied information sheet
" Access protection". If this document is lost, the emergency
device code can be retrieved from your personal contact person
after legitimation. The storage and transmission of the device codes
is always encrypted (SHA 256 algorithm).
Bluetooth access code
Emergency Bluetooth
unlock code
Device code
Emergency device code
