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７．MAINTENANCE CHECK
This is an important for security and safety. To maintain the security and enhance
the reliability of safety, the regular maintenance check for it shall be absolutely
necessary.
７－１．Frequency of maintenance and check items.
７－１－１．Daily check
This is the check items carried out by customer.
①Check of flowmonitor
Check that the ball in flowmonitor of this unit is within two red lines.
②Check of PW/TR light.
In normal operation, the light is at on condition.
③Check of LED reading
Check that LED reading is zero “0”.
If it is not “0”, check that gas is free around gas sample point and adjust zero position
in maintenance mode.
④Check and replacement of dust filter
While this unit is working, ball in flowmonitor shall be positioned within two red lines. If it is
below the lower part of red line, adjust it with FLOW ADJ/▲▼switch to ▲.
Even though it cannot move up, the filth of dust filter can be considered. Replace it with
new one or check the flow path(clog, bend or crack of tubing).
７－１－２．Regular maintenance check
The following items shall be checked at regular check.
①Daily check
②Cleaning of this unit
③Adjustments
④Function check
⑤Parts replacement (Refer to 7-6 recommendable spare parts list)
⑥Others
７－１－３．Maintenance contract for regular check
To maintain the safety operation of the unit, it is recommended to keep the maintenance
contract with service agent for regular maintenance, adjustment and overhaul etc including
the gas sensitivity adjustment.
For the detail of maintenance contract, contact our nearest service agent or Riken Keiki.
Summary of Contents for GD-K71D
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