8
(2) Non-explosion proof system
(3) Component inside detector head
①
Detector
head
In
di
c
at
o
r/
al
ar
m
uni
t
Non-hazardous area
Non-hazardous area
CVVS1.25sq・2C
or equivalent (MAX600m)
Sensor hol der
Oxygen
Atm
osphere
Cabl e gl and
Shi el ded cabl e
Housing
Sensor l ead
Terminal
strip
Oxygen
sensor