Baumer Ident OIS-P PC 3100 series, Руководство по установке

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OIS-P, PC3141/03 Manual Baumer Ident 25
Maintenance aspects
5 Maintenance aspects
5.1 General
The PC3141 OIS-P system is basically a
maintenance-free system. Once correctly installed,
it will deliver many years of trouble-free operation.
In important processes, the user usually collects
and evaluates communication reliability statistics
on a regular basis. These statistics can be
retrieved from the OIS-P communicator as
described in section 7.4 or can be collected at the
user control system level.
5.2 Battery life
General
In order to obtain communication distances in the
meter range, high data speed and still comply to
international telecommunications and health
standards, the Data Tags must be equipped with a
battery.
To get maximum life out of the batteries, the OIS-P
Data Tags are of semi-passive type. The majority
of the time, the Data Tags are
passive and only
consuming a few
µ
A. Only during communication,
which typically is ended in a fraction of a second,
will they be
active with an increased current
consumption.
The batteries chosen are long-life lithium batteries,
whose life expectancy depend on the amount of
data communication, the data transmission speed
of the Data Tag and the ambient temperature in
which it is used. If the ambient temperature is high,
the battery life will be somewhat reduced. Long
term exposure to high temperatures should
therefore be avoided.
However, for most industrial applications, the
battery life will be longer than 6 to 8 years, as
specified on the Data Tag data sheets.
Battery-low alarm
The remaining battery capacity is automatically
monitored every time communication is established
with an Data Tag. When “battery-low” status is
reported to the user control system, the remaining
battery capacity is 5% and the Data Tag should be
taken out and receive a new battery.
Note: Battery low indication is not reliable
in sub-zero
°
C temperatures. If
battery-low indication is received in
temperatures below freezing, no
adequate conclusion can be made
from this.