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Electromagnetic Coupling RFID System

V600

■ Battery Life

The Data Carrier has a built-in lithium battery.

The following graphs show the relationship between the number of bytes per transmission, the number of transmissions per day, and the battery life.

■ Temperature and Battery Life

V600-D2KR16

The battery life is two years at 25

°C regardless of the relationship between the number of bytes read/written and the number of transmissions.

Examples Showing Relationship between Battery Life and Temperature

The following table shows the standard values.

Note: If the battery is stored at 70

°C and is not installed, the battery

life is calculated as follows:

2 (years)

× (1 - 0.32) = 1.36 years

If the battery is stored at 25

°C after one year’s storage, the bat-

tery life will be approximately 1 year and 4 months. (The battery

life will be shortened if the battery is used at temperatures close

to 0

°C or 50°C.)

The values in the above graph are based on the battery being installed (i.e., the insulation sheet is removed). If the battery is not installed, the

values shown in the above table will apply.

V600-D8KR12 (Typical Example)

V600-D8KR04 (Typical Example)

V600-D8KR13 (Typical Example)

Number of bytes/transmission

8 years

5 years

Number of bytes/transmission

8 years

5 years

Number of bytes/transmission

8 years

5 years

2.5

2

1.5

1

0.5

010

20

30

40

50

Temperature

Battery consumption rate in one year

20

°C1%

30

°C2%

40

°C4%

50

°C8%

60

°C

16%

70

°C

32%

Q124-E1-03.fm Page 22 Tuesday, May 30, 2006 5:22 PM