changes in the installation site of receiver (GateWay). This kind of troubles can be solved by redesign of the radio
network in order to secure sufficient signal reception (that means changing of antenna for better type, moving of
antenna or whole device etc.).
5.1.4
Failures of communication with watermeters
Failures of receiving of BUP (”Bubble Up”) radio-messages broadcasted by Sensus iPERL watermeters every 15
seconds generally show themselves as missing readings from some of read watermeters. In this case proceed with
troubleshooting of the malfunctioning in following steps:
•
if there are no messages from some watermeter, check its ID (serial number) in the table of read watermeters
(see paragraph
”
Commands for communication with watermeters”);
•
check receiving of watermeter messages in ”RADAR” mode with the length of receiving window at least 45
seconds (see paragraph
”
Commands for communication with watermeters”);
•
visually check condition of the watermeter (mechanical damage, flooding by water, low battery). Follow
troubleshooting instructions in watermeter documentation, in any doubt replace the watermeter;
•
visually check surrounding of the watermeter installation site to find out if there are any changes that can
influence radio signal (e.g. new objects, things, machines...). If there are such negative circumstances, solve
the trouble by reorganization of the object or by relocation of the WB169-430 module or its antenna (if
external antenna used) to the place with better signal from the watermeter;
•
if there are any doubts about functioning of WB169-430 module 433 MHz receiver, try receiving of signal by
using of spare device. If the module is not working properly, replace it according to the paragraph
5.2
Troubleshooting procedure
To identify a reason of device failure or any anomaly in its operation follow this procedure:
1. No data are available from any watermeter read by the WB169-430 module. In this case it is recommended
to check functionality of the module subsystems in following order:
•
check correctness of setting of the module in the central system database;
•
check functionality of power supplying as described in the paragraph
”
Power supplying failures”;
•
check functionality of the system as described in the paragraph
”
System failures”;
•
check functionality of transmitting and receiving as described in the paragraph
”
Transmitter and
receiver failures”;
•
check functionality of receiving of BUP messages from watermeters as described in paragraph
”
Failures of communication with watermeters”.
2. Readings from some of watermeters read by the module are not available. In this case it is recommended to
check functionality of the module subsystems in following order:
•
check functionality of watermeter itself;
•
check correctness of central application configuration related to the watermeter, especially compliance
with setting of its ID and index in the table of read watermeters in the WB169-430 module configuration;
•
check functionality of receiving of BUP messages from watermeters as described in paragraph
”
Failures of communication with watermeters”.
3. Data values from some of watermeters read by the module are incorrect. In this case it is recommended to
check functionality of the watermeter.
4. Data from the module come irregularly, with periodical breakdowns. In this case it is recommended to check
functionality of the module subsystems in following order:
•
check functionality of transmitting and receiving as described in the paragraph
”
Transmitter and
receiver failures”;
•
check functionality of power supplying as described in the paragraph
”
Power supplying failures”.
NOTE: WB169-430 module is a reliable device with relatively simple and resilient construction,
so that any possible failure of the device is very likely caused by external circumstances, especially
mechanical damage, excessive humidity, discharging of internal battery, or local radio-interferences in
the installation site. After each replacement of the module caused by its failure it is recommended to
check the root cause of the failure and take necessary measures to eliminate any persisting troubles.
WB169-430
28
