1
In the beginning
It is of our great pleasure to purchase Riken portable HC/O2 gas indicator model RX-415 this
time. This instrument is an explosion-proof type portable gas indicator which is designed to
measure the presence of crude vapors in an inert gas or in air such as HC gas, vapors and
methane gas and O2.
This instruction manual is a guide book for operation of Riken portable HC/O2 gas indicator
model RX-415. It is kindly requested to read and understand this content by experienced users
as well as beginners. The following headline shall be shown to carry out the safety and effective
work in this instruction manual.
Model RX-415 is approved by certificate number:
Baseefa
05ATEX0101
Danger
This means that it gives the serious harm to the human life, body or material directly such as
touching high voltage.
Warning
This means that it gives the serious harm to the human body or material if do not perform the
operation according to the instruction manual.
Caution
This means that it gives the slight harm to the human body or material if do not perform the
operation according to the instruction manual.
＊
Note
This means the advice in the operation.
Model RX-415 consists of two type according to the kind of gases below ;
For HC gas use :
Model RX-415 (TYPE HC)
HC :
0-100%LEL/0-100vol%
O2
:
0-25vol%
For CH4 gas use : Model RX-415 (TYPE CH4)
CH4
:
0-100%LEL/0-100vol%
O2
:
0-25vol%
