YOKOGAWA CENTUM CS, Техническая информация

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1. System Installation Requirements
1-25
TI 33J01J10-01EN
1.5.2 Countermeasures against Static Electricity
Take countermeasures against electrostatic damage when handling cards with
semi-conductor IC components, for maintenance or to change settings.
Observe the following to prevent electrostatic damage:
• When storing or carrying maintenance parts, be sure to enclose them in an antistatic bag.
(For shipment these parts are enclosed in an antistatic bag labeled with precautions against
electrostatic charge.)
• During maintenance work use a wrist strap with a ground wire via a grounding resistance of
1 M ohm. Be sure to ground the wrist strap.
• When performing maintenance work on a desk or a table, place a conductivity sheet
grounded via a grounding resistance of 1 M ohm. The maintenance person must wear a
wrist strap while performing maintenance work. Take any plastic and other materials that
can easily be charged away from the work area.
• Exercise caution so as not to touch any of the maintenance parts while the wrist strap and a
conductivity sheet are not being used.
F010504.ai
1 M ohm
Wrist strap
Connect the wrist strap to the ground terminal or
unpainted part of the frame (grounded).
1 M ohm
Wrist strap
Conductive sheet
Grounding resistance
of 1 M ohm
When working with a card with battery (power
supply unit) on a conductive sheet, set the
BATTERY ON/OFF switch to the OFF position
or remove the battery.
Figure Example of Using a Wrist Strap and Conductive Sheet
Jan. 21, 2019-00