§1 Summary of equipment
1
§1 Summary of equipment
This tester is used to test the shock resistance of a small and lightweight product (portable telephones, etc.)
by freely dropping it from the height of 250~ 2200mm
while holding it under an optional position.
1-1 Specimen supporting base
This specimen supporting base is used to support a specimen and freely drop it from an optional
height. It is provided with pneumatic pen cylinders to be able to release the specimen momentarily
at a specified position.
1-2 Fixing and drop operation of specimen
A specimen is set by [SET] and [RESET] push-button switches of the control unit. The specimen is
dropped by [DROP] push-button switch.
1-3 Drop height setting
The drop height can be set by setting the height setting bracket to an optional scale position of the
scale.
1-4 Safety measures of operation
The control system is designed by taking a serious view of safety.
1) When the pneumatic cylinders are set to the pull side, the drop operation is not done even if [DROP]
push-button switch is pressed.
2) Drop operation is done by [DROP] push-button switch. An alarm buzzer sounds when pressing this
switch and s specimen drops when releasing the switch.
3) If a trouble was detected when the buzzer is sounding by pressing [DROP] push-button switch, turn
off [POWER] switch without releasing [DROP] push-button switch, and the drop operation is not
done.
4) The electromagnetic holder for dropping a specimen is operated by feeding its power supply so that
no specimen drops when power was interrupted to ensure safe operation. The pneumatic cylinders
(solenoid valves) for releasing the specimen are also operated by feeding power, so that no
specimen drops when power was interrupted to ensure safe operation so long as the pneumatic
pressure is supplied normally.
250-500mm: In this range specimen can be just released from the setting height while chuck itself would be stay at
setting height.
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