2-4
Section
Data Carriers (SRAM, With Built-in Battery)
31
With the Intelligent Flag
III
, the battery’s service life will be greatly shortened if
the Data Carrier is repeatedly stopped within the communications area while the
AUTO mode is in effect. To prevent this from occurring, either turn OFF the Am-
plifier’s power supply or stop the Sensor’s oscillation by turning OFF the INHIBIT
input.
The built-in battery will be consumed to the extent shown in the following table if
the Data Carrier is stopped in the communications area for one day (24 hours).
Model
Battery capacity
Consumption per
day
Percentage of
battery capacity
V600-D8KR12
410 mA/h
1.68 mA/h
(0 07
A/h
0.41 %
V600-D8KR13
1,000 mA/h
(0.07 mA/h per
hour)
0.168 %
V600-D8KR04
1,900 mA/h
hour)
0.088 %
V600-D8KR11
1,900 mA/h
0.088 %
The battery used for the V600-D2KR16 has a service life of two years at an ambi-
ent temperature of 25
°
C, regardless of the number of access times or R/W
bytes.
Battery Service Life vs. Temperature
Ambient temperature (
°
C)
Battery life (years)
The above graph shows the relationship between the service life of a built-in bat-
tery and ambient temperature (after the insulation sheet is removed).
The table below shows the life expectancy of a battery that is stored separately
(without being installed in the Data Carrier).
Temperature (
°
C)
Battery consumption rate (%) per year
20
1
30
2
40
4
50
8
60
16
70
32
If the Data Carrier is kept at a temperature of 70
°
C without removing the insula-
tion sheet, the battery will last for 1.36 years (2 years x (1 – 0.32)).
If the Data Carrier is kept for one year at a temperature of 70
°
C without removing
the insulation sheet, the battery will last for an additional period of approximately
one year and four months if used at an ambient temperature of 25
°
C. The life of
the battery will be shortened if used at an ambient temperature of 0
°
or 50
°
C.
Note
1. The data in SRAM-type Data Carriers will be lost at the time of battery
replacement. Be sure to make a backup of the data before replacing the bat-
tery.
2. After replacing the battery, be sure to affix the battery cover seal. IP50 is not
guaranteed if the battery cover seal is not affixed. Refer to page 60.
V600-D2KR16