Riken Keiki OHC-800, Руководство по эксплуатации

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7 Maintenance 7-1. Maintenance intervals and items
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7
Maintenance
7-1. Maintenance intervals and items
There are two types of maintenance to be performed by the user, "daily maintenance" and "monthly regular
maintenance" and one type of maintenance to be performed by RIKEN KEIKI service engineer, "biannual
regular maintenance."
7-1-1. Daily maintenance
Daily maintenance is performed to check the soundness of the product operations. Perform daily
maintenance according to the maintenance items and criteria shown in the table below.
Maintenance item Criteria
 POWER lamp In a normal state, the POWER lamp remains ON at all times.
Check that the light remains ON normally.

Lamp1, Lamp2, and Lamp3 In a normal state, the Lamp1, Lamp2, and Lamp3 remain OFF at
all times. Check that these lamps remain OFF.
 LCD display Check that the LCD does not display FAILURE, OUT OF
SPECIFICATION, MAINTENANCE REQUIRED etc.
 Reference gas (REF) and
measuring gas (GAS) flow
rates Check that the black circles that indicate the reference gas
(REF) and measuring gas (GAS) flow rates stay between the
two solid lines that represent the upper and lower limits.
If some kind of abnormal state is found, perform investigation and maintenance according to the
troubleshooting procedures.
Ⅱ2G Ex dbⅡB+H2 T4 Gb