11
・
Do not alter, noｒ
remodel the parts, etc.
・
Use the circuit breaker as for the power of indicator/alarm unit. Also it shall be mounted
nearby indicator/alarm unit and be specified that it is for power interruption of
indicator/alarm unit.
・
Ground the zener barrier separately corresponding to the A-class grounding with ground
resistance of 10Ω or less.
・
Use the specified cable.
・
For system installation, operation and maintenance, take care not to damage the intrinsically
safe design.
・
The power of the indicator/alarm unit shall be turned on after completion of all wirings. If
each wiring is carried out in the power on condition, short-circuit between terminals or an
electrical shock may be occurred.
* NOTE
When wiring, read the operating instructions for the connected indicator/alarm unit.
WARNING
CAUTION
！
