FID unstable flame

Hi obedboakye 

See attached file, I hope this solve you GC problem  

Dheya 

Air was at 100 psi and Hydrogen was at 60 psi

Hi obedboakye ,

I updated the tags for visibility. Can you let us know the supply pressure of both gases to the back of the GC? Also a model number of the instrument would help with the community to make suggestions.

Regards

James

Hi obedboakye

, What your GC modal? the pressure good for FID

•  Try to test flow for FID by flow  meter is wetuski suggestion we faced same problem and after we checked FID flow gases we discover different      between GC air flow (350 ml/min) display and the real value (100ml/min) from flow meter and this  confirm the EPC for zero  air damage because.... high moisture in zero air 

Use a flow meter to test that the expected flows are being delivered. Also, be sure that you have traps on your gases to make sure that no moisture is getting into the gas streams for the FID.

The flame is fine now. However, I wanted to find out the procedure specifying the no norm% report because though I have ticked it in the 'specify report' section, only some gases are reported in the final report. Any help with this