Chromatography Forum

Was at work yesterday and thought I would just set up a quick run as part of a change control (we had a few new additions)
The system equilibrated fine and started its first injection, just as I came to leave the system had stopped pumping and had the following error on the screen:
'Solv delivery h/w fault'
I had a quick look through the manual to little avail, has anyone else had this issue? What did you do to rectify?

I tried turning the system and PDA off and booting up again, the system could not even complete it intialisation procedure

If this something to do with hardware cabling? Or is there some sort of block in the system? Usually a block in the system would result in overpressure / pressure fluctuations not the alert....a little confused......I was going to do dry prime when I got in tomorrow and see what happens - but if anyone else has some advice I would greatly appreciate it (thanks in advance!)

We use Empower and the engineer did not quite set everything up correctly so I had delete and re-add the systems - if h/w is hardware....surely it cannot be anything to do with this? As usual, it is very odd the system was pumping fine, even got half way through the first injection! About to go home, then crash! It was all fine before the engineer came in too! A-wah!

I would check for any cables on the inside who are loose.
Unscrew the sides of your 2695 and take a look.
Probably a cable to your pumps which isn't connected properly.

Ace

Hi Ace - thank you for the reply.

Came on and turned the system back and it came up with the familiar message about the plunger homing been overpressure.

I have replaced the inline filter and re-primed and purged all lines and washes. System is working again, so fingers crossed it stays that way!

I wonder if it came up with the alert as an alternative to the plunger message you seen on initialisation?

Hi,

when you get a solv delivery hardware fault, it can be a number of things. firstly open the drawoff valve and continue int. After that power off/on. Usually after the fault there is a number in brackets, solv delivery hardware fault (0) or (1). This pin points which torpedo is at fault.
Worth keeping an eye on this as it may be nothing or it could lead to a service call when it re-occurs.