Riken Keiki GD-F3A-SC-A, Руководство по эксплуатации

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８．MEASURES AT ABNORMAL CASE
８－１．Responding to trouble alarm
If this detector founds defective, contact our authorized agent or RIKEN KEIKI.
８－２．Before it is thought to be a trouble
・Check the wirings around the related instruments as well as this detector head.
It may be caused by improper operation.
・Re-check the detection system and contact our authorized agent or Riken Keiki.
It may be caused by cable disconnection, short circuit, etc.