We have the 6470 spectrometer that was turned off to do electrical work in the building. When we turned it back on, the communication is not taking place between the QQQ and the software. we restarted the system but the problem still persists
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We have the 6470 spectrometer that was turned off to do electrical work in the building. When we turned it back on, the communication is not taking place between the QQQ and the software. we restarted the system but the problem still persists
What the error message is displayed in Lab Advisor? Can you see it MH logbook? What the pop-up banner displays if point the mouse on each "red brick"? I suppose the error is concerning with an LC, not the MS
Hello,
In the logbook, this is the message:
ALS_1: G7129B: DEBA902302-Shutdown [EE 00063, 0]
Yes the error concerns the LC and not the MS
On the red banner, the message is:degasser's pressure limit violation, shutdown. Not ready condition: shutdown, drive off, out valve block position
Thank you
Hello,
It seems the degasser is the reason of the Shutdown. The degasser is inside the pump. Just try to remove the pump from instrument configuration and switch it OFF. Then load the MH again and check if the error gone. If yes then the reason is in the pump. Replace the degasser.
Regards
Oleksandr
Hello,
Thank you for your reply
There were definitely air bubbles in the HPLC system, because the column pressure was fluctuating a lot and the column had started leaking. And immediately the whole system crashed. The most urgent thing is to unblock the system to perform a system purge
Hello Oleksandr,
Thank you for your help,
the 640 spectrometer works, however the flow rate of the infinity 1290 pump is not regular and therefore the pressure is not stable.
we purged all the channels with isopropanol but the problem persists.
We removed the column and despite this, the pressure varies
As mobile phase we only use water with acetonitrile.
How to resolve this flow problem?
Thanks
Faïza
Hello!
You have to check your 1290 pump. Inlet or outlet ball valve on one of the heads or both maybe malfunctioning and requires replacement.
Hi,
After the replacing the smart card, you need the update fw and select the line voltage, it is risky process so my advice is get contact with a trained engineer. After that temp will reach the setted value.
Hello
Thank you for your reply
What is damaging these pump heads or valves? because we are careful and we do not use buffered mobile phase?
Regards