4.7
Module and meter replacement
When there is necessary to replace the module due to the module failure or due to battery discharging follow this
procedure:
•
check the antifraud seal before dismantling – the antifraud seal damage must be solved according to the
internal rules of the customer/project;
•
loosen the fixing screws (or clamping tape) that hold the module on the wall, pipe or other pad and dismantle
the module;
•
completely loosen the sealing nut of the cable gland at the cap;
•
unscrew two screws on the sides of the module casing, loosen the cap of the module and slide out the cap
from the casing. Help yourself by slight pushing the antenna into the module;
•
by switching of micro-switch (
”
jumper”) placed on the PCB into the
”
OFF” position disconnect the module
from the battery power supply;
•
if an external NB-IoT antenna used, loosen the sealing nut of the cable gland at the casing and carefully slide
out PCB from the casing to have an access to the antenna connector;
•
disconnect the cable of the external antenna from antenna connector;
•
put both parts of the module back together by screwing the cap together with base (*). Mark the module
visibly as
”
defective”, alternatively you can fill in the form (mounting report) about the module replacement;
•
install a new module in the same way as described in paragraph
above. Pay attention to the correct setting
of basic parameters, namely broadcasting period and communication with watermeters;
•
write down the serial number and seal number of the new module, alternatively also actual statuses of counters
of connected meters;
•
if possible, arrange making of all appropriate changes in the database of the remote reading system immedi-
ately.
(*) CAUTION!
Pay attention to the completing of the correct casing with the appropriate PCB. The correct
module completion can be checked out according to the auxiliary label with the serial number glued on the PCB.
When there is necessary to replace a consumption meter read by the module due to the meter failure, expired
metrology period or for any other reason, follow this procedure:
•
do not open the module, if not really necessary! Rewrite ID (serial number) of original meter to the ID of
new meter with using of USB-IRDA/BT-IRDA converter;
•
check in ”RADAR” mode, whether the new meter is in radio reach of the module and whether the read value
corresponds to watermeter mechanical counter;
•
if wireless configuration is not possible, check the antifraud seal and open the module by following the procedure
set out in the paragraphi
•
connect to the module with a configuration cable and use the ”sid [index] [value]” command to set the serial
number of the new water meter by overwriting the original value (see paragraph
”Commands for setting
the meter reading”);
•
when replacing a watermeter transmitting in WMBUS mode for the device that is a different type than the
original watermeter, use ”wkey” command to set its decryption key and set DIF/VIF parameter and alarm
interpretation by using of ”dib1”, ”dib2”, ”diba” and ”alrb” commands;
•
by using of ”recvwin” and ”radar” commands (see paragraph
check, whether the new meter is in radio
reach of the module and whether the read value corresponds to watermeter mechanical counter;
•
fill in the required documentation for the meter replacement (mounting sheet), precisely write down the value
of the mechanical counter of the new meter;
•
cover the module and seal it according to the instructions in paragraph
. Alternatively wait for the first
reading and cover the module afterwards.
•
if possible, arrange making of all appropriate changes in the database of the remote reading system immedi-
ately.
4.8
Module dismantling
When dismantling, disassemble the module from the wall, pad, or pipe. Open the module, switch off battery and
possibly disconnect antenna cable. Put the module parts back together by mounting of the cap on the module base.
After the dismantling mark the module as
”
dismantled” and fill in the relevant documentation, prescribed for this
situation by the internal rules. If possible, arrange deactivation of the module in the database of remote reading
system immediately.
NB-K868
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