8
４．HOW TO USE
４－１．Before operation
All persons who use this detector for the first time and who has even used the detector are requested to
follow all the instructions for use carefully. If not, the instrument may be defective and correct gas
detection may not be performed.
４－２．Installation place
This detector head is installed at the place of oxygen detection directly since this is a diffusion detector
head.
Note the following points.
Do not install the detector head and cable at the following points.
・Place to get direct rays of the sun.
・Places closed to high temperature and/or emission of electromagnetic wave.
・Place with vibration or shocks.
・Place where the mounting part is weak and it is easy to come out.
・Place where it is difficult to make maintenance and inspection.
・Place unable to secure grounding.
・Places where the temperature is drastically changed.
・Places exceeding operating temperature and humidity.
４－３．Maintenance space
A certain maintenance space must be secured around the detector head, so that the maintenance staff can
perform the safe and correct maintenance work. Pay due attention to secure this space during work plan
and execution.
４－４．Installation work
(1)
Mounting to the wall surface
Mount the detector head to a flat surface (wall surface, etc)
with either M6 bolts or M10 bolts through mounting holes.
Refer to
”
3-1. External dimensions
”
for mounting pitch.
(2)
Mounting to the pole
The unit can be mounted to the pole (2B pipe)
by using the optional U-bolts as show right figure.
(3)
Installation to the outdoors
For outdoor installation, optional drip-proof cover is required
to keep reliable detection although this is a drip-proof design.
Contact authorized distributors, dealers or representative
appointed by RIKEN KEIKI Co., Ltd.
WARNING
Mounting to the pole
2B pipe
（O.D. 60.5mm）
U-bolt
（Nominal
diameter 50B）
