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6.6. Environment
Table 6.4
Item Specification Remark
Operation 0 ºC to 40 ºC Temperature
Storage -10 ºC to 50 ºC
Operation 30% to 80%RH Humidity
Storage 30% to 90%RH
At 40ºC. No condensation
Malfunction at 5 KV Electrostatic
Destruction at 10 KV
Conditions:
Equivalent human body resistance: 100 ohm
Equivalent human body capacity: 250 pF
Frequency of application : 10 times
Period of application : 0.3/0.3 sec.
6.7. Impact Durability
Table 6.5
Item Specification Remark
Shock-proof (in height) 30 cm or less
Local impact 1 Kg at 6 specified positions
Overall impact 20 Kg
Resistance to vibration 0.15 G
Conditions:
In X,Y, Z directions
10 to 55 Hz
30 minutes
6.8. Reliability
Table 6.6
Item Specification
MTBF 67,000 hours
Power switch 3,000 times
Terminal detection switch 20,000 times
Switch
DIP switch 50 times
RS-232C 500 times
RS-485 500 times
Connection/removing
of the connector
DC jack 500 times
Mounting and removing terminal on/from cradle 20,000 times
Mounting and
removing of battery
pack into/from the
compartment
Charging spring 5,000 times
Notes:
• The above MTBF figure has been calculated based on each MTBF of electronic parts
employed.
• The above figure does not apply to the dedicated AC adaptors.
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