Chromatography Forum

On Friday, I had a blown filament. I was receiving error code “No emission current @1.87, error code 8” I changed both filaments, cleaned the source, and allowed it to pump down until Monday. I came in on Monday, and attempted to tune, but received the error “Not enough signal to begin tune”. The first problem I noticed was the fan on the GC was not working. After having this replaced, yesterday, I attempted to tune again and received the error “Not enough signal to begin tune” I took the instrument down and checked all of the electrical connections. Everything looked good. I replaced part no. 60142. Attempted to tune again this morning and received the same error. I tried switching filaments, but no peaks found on either. Any advice?

can you get into the manual tune options? You may have to manually tune the system. I have seen this on a 5971 where the optics were so far off it could not start a tune. I had to manual tune for a while until I could see some signal. Then usually the auto tune would take over.

How's your multiplier? What was the voltage on the last "good" tune you have? Is it possible this burned out?

Just a thought although you may have already tried this.

Ty