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６．MAINTENANCE
Gas detection and alarm instrument is kept in continuous operation over a long time and must
perform a vital role as a safety device. For this purpose, periodical inspection must be made.
The High-pressure Gas Safety Act in Japan sets forth the obligation of periodical inspection of
the gas detection and alarm instrument.
- Maintenance Contract ‒
Be sure to perform the regular maintenance since this is an instrument for security and
safety. If this detector head founds defective, contact RIKEN KEIKI immediately.
６−１．Maintenance intervals and items
The maintenance includes a daily maintenance which a person in charge of control and operation of
the gas detection instrument performs maintenance before work once a day, and a monthly
maintenance carried out once a month, and periodical maintenance conducted by the service
personnel designated by manufacturer. The maintenance items are confirmation of lights,
concentration indication and alarm function on the indicator/alarm unit side. It is also necessary to
carry out gas calibration at least every 6 months. The law in Japan sets forth that the unit must
issue an alarm during the circuit maintenance related to alarm while providing normal operation, at
least, once a month.
To maintain the safety operation of the gas detection instrument, it is recommended to keep the
maintenance contract with our authorized distributor for regular maintenance, adjustment and
overhaul etc. including the gas sensitivity adjustment (gas calibration).
For the detail of maintenance contract, contact RIKEN KEIKI..
WARNING
！
* NOTE
・Be sure to inform sections concerned beforehand when performing alarm test or
gas calibration. For the equipment connected with output signal from
indicator/alarm unit, perform them after disconnecting the output signal.
・Special trained engineer for gas detection instrument can perform maintenance
work accurately and efficiently.
・Then, it is recommended to contact RIKEN KEIKI for maintenance.
・This is a safety instrument and the maintenance every 6 months or more is
mandatory to ensure the safety. If the unit is used by continuously without
maintenance, the sensor sensitivity may change, resulting in failure of correct
detection.
