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６．MAINTENANCE AND INSPECTION
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 inspection since this is an instrument for security and
safety. If this detector head founds defective, contact our nearest agent or RIKEN KEIKI soon.
６－１．Inspection frequency and items
The inspection includes a daily inspection which a person in charge of control and operation of the gas
detection instrument performs inspection before work once a day, and a monthly inspection carried out once
a month, and periodical inspections conducted by the service personnel designated by manufacturer. The
inspection 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 inspection 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 our nearest agent or RIKEN KEIKI.
・ This is a safety instrument and the inspection every 6 months or more is mandatory to ensure the
safety. If the unit is used by continuously without inspection, the sensor sensitivity may change,
resulting in failure of correct detection.
WARNING
・ 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 and inspection
accurately and efficiently. Then, it is recommended to contact our authorized agent for maintenance
and inspection.
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NOTE
