GC Agilent 7890B-TCD -PDHID-FID

Thanks James

Yes James it is valco detector installed on Agilent 7890B. just i want to know from agilent expert how to keep this detector away from any contamination because when it sees dirty gases it takes long time for recovery .

Hi Amrnasser,

I have updated the tags for better visibility.

James

Hopefully one of our community members can jump in here if they have experience with this setup. It looks to me like its a valco detector. I did find this web resource http://www.vici.com/support/manuals/d2.pdf  that may help. Valco may be able to supply more information. This is also a good question to ask your sales representative as they would have access to an Agilent Application Engineer.

James

Thanks kelly

Why PDHID is not valid with third detector in 7890B and what is the suitable second detector with Pdhid?

What do you mean by partner channel?

As I know from Agilent agent that this system configurated with three detector each detector in separate channel even I can change carrier gas of one channel with same carrier of other channels I.e. Tcd with argon and PDHID and FID with helium .

Please confirm that if system has separate channel it will be valid

Hello,

Unfortunately Agilent can't have a third detector when a PDHID is present, so it is not a valid configuration.

For the PDHID, UHP helium is required, and additional a main getter and mini getters are used for additional helium clean up.  Getters remove all impurities with the exception of argon.

Typically with complex system like this we would use a channel partner.

Kelly