Casio manual Reliability DT-X5, 210,000 hours or more, Protection from short, Charge terminals

4.4		Reliability
4.4.1			DT-X5
	Table 4.15
			Item	Specification	Remark/Condition
	Service life
			Backlight	10,000 hours	At half-life period
			Laser scanner	10,000 hours
			C-MOS imager	70,000 hours
			Trigger keys	1,000,000 times	For each trigger key
			Other keys	500,000 times
			Mounting/removing of the	10,000 times
			terminal to/from the Cradle
			MTBF	62,413 hours	Electronic parts only
			MTBF (WLAN module)	27,000 hours
			Charging and discharging cycle of	300 times or more	Applicable to HA-A20BAT and
			battery pack		DT-5025LBAT (see notes)

Note:

The number of the cycles is assumed with the conditions below.

•The remained capacity of battery pack at the 300 cycles is approximately 58% of the full capacity.

•The surrounding temperature is 20 ºC.

•The discharge current is 1.6Aconstant current.

4.4.2HA-A60IO, HA-A61IO, HA-A30CHG

Table 4.16

Item		Specification	Remark/Condition
MTBF for electronics parts		50,000 hours
Mounting/removing the terminal to/from Cradle		20,000 times
Switch	Power switch	5,000 times
	DIP switch	10 times	For HA-A61IO only
No. of ON/OFF times of the	USB	500 times
	RS-232C	500 times	For HA-A61IO only
connector
	RS-422	100 times	For HA-A61IO only
No. of ON/OFF times of the power jack		1,500 times

4.4.3 DT-5022CHG

Table 4.17

Item	Specification	Remark
MTBF	210,000 hours or more	MIL-HDBK217F
Protection from short	Internal circuit is protected from a short between
	the charge terminals

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