Table of Contents

H2, AIR APC are not ready [Error Code:4207]

Cause¶

The hydrogen gas or air flow is unstable during FID ignition sequence.

Solution¶

• Check that the supply pressures of hydrogen gas and air are within the ranges below.
  
  

  
  
  
  

  
  
  
  

  
• Check that the gas supply pressure is stable.
• Check for any looseness or leaks at the pipe connections.
• Contact your Shimadzu service representative to check the inner diameter and length of used piping.

If the error appears repeatedly even after checking the above, the flow controller may have failed.
Turn off the main power of the instrument, stop gas supply, and contact your Shimadzu sales/service representative.