•
install modules only to the sites where they can be squirted or sprayed by water only occasionally and only
for a short time;
•
do not install modules to the sites where they can be dipped into the water.
Risks of damage of the device in waterproof
”IP68”
design caused by penetration of excessive humidity can be
eliminated by these precautions:
•
do not open the module with silicon filling without serious reason;
•
if (from some reason) the module was already opened, manipulate with it very carefully or renew its silicon
filling by pouring of a few milliliters of special silicon (same as original - consult the technique with manu-
facturer).
In case the module has been opened, there is no manufacturer’s guarantee of IP68
degree of protection.
;
•
install modules only to the sites where they can be dipped into the water only occasionally and only for a
short time;
•
do not install modules to the sites where their antenna could be submerged under water. Antenna must be
installed to such place, where there is no possibility to be flooded.
Operating of the module with antenna
submerged under water could cause irretrievable damage of the device!
4.2
The condition of modules on delivery
Modules are delivered in standard cardboard boxes. The modules ordered in basic variant with IP65 degree of
protection are delivered with battery switched off. The modules ordered with IP68 degree of protection are delivered
in fully operating status with battery switched on. For saving battery energy reasons the long transmitting period
(e.g. 1 day) is pre-set in the factory, or transmitting is blocked by setting of ”periode” parameter to ”0” value.
4.3
Modules storage
The modules should be stored in dry rooms or halls, in the temperature interval (0
÷
30)
◦
C. To prevent the
unwanted discharging of internal battery it is recommended to keep the long transmitting period configured until
the module’s installation.
As NB-IoT services are charged by GSM operator, it is recommended to insert SIM and activate the service just
before module installation.
4.4
Safety precautions
Warning!
Mechanical and electrical installation of the NB-K868 module can be provided only by a person with
necessary qualification in electrical engineering.
4.5
Environmental protection and recycling
The equipment contains non-rechargeable lithium battery. It is necessary to remove battery before module disposal
and dispose battery separately in compliance with the dangerous waste disposal rules. Damaged, destroyed or
discarded devices cannot be disposed as household waste. Equipment must be disposed of in the waste collection
yards, which dispose electronic waste. Information about the nearest collection yard can be provided by the relevant
local (municipal) authority.
4.6
NB-K868 module installation
NB-K868 radio modules are enclosed in plastic casings with an IP65 degree of protection equipped with mounts
for mounting on the wall, pipe or any other construction element. Battery switch, configuration connector as well
as antenna connector are placed on the module’s printed circuit board, so that it is necessary to open the casing
to access these elements. The module is equipped with a ”Micro-SIM” (3FF) format card holder placed inside the
module on the PCB. Alternatively, it can be ordered with embedded SIM (eSIM) of chosen GSM operator.
Modules with additional silicon filling
(IP68 degree of protection) are delivered with embedded SIM-card
(eSIM), mounted antenna, and with battery switch in ”ON” position. Configuration of the module should be
performed by USB-IRDA/BT-IRDA optical converter as described in section
”
Setting of parameters by using
of optical converter”.
It is recommended do not open the casing during operation until it is really
necessary, and if so, do it very carefully.
NB-K868
31