TSP AS3000 CPU INJ INV error #119

Discussions about HPLC, CE, TLC, SFC, and other "liquid phase" separation techniques.

5 posts Page 1 of 1
Hi, I'm trying to revive old setup of P4000, AS3000 and UV2000 as kind of hobby project - there were the newest devices I could find that could be manually operated without dedicated software...

I started with AS3000 and I have found few problems, one of them critical. On hardware checks I see "CPU INJ VLV Error #119" after hearing noise from injection valve. I checked the cable to the valve photodiode PCB and the motor, both are fine. When I disconnect photodiode cable, I get "Connector J5" invalid, which seems valid. I tried to remove valve from the motor - surprisingly I also start getting "Connector J5" errors. When I issue valve commands, nothing happens on Inject, when Fill is selected motor turns for about 1s and then error is shown.

Could it be that valve needs cleaning? I can't turn it with my hands, but it does turn (slowly) when I power the motor from 12V.
First loosen three hexkey screws fixing the stator , then adjust all the three hexkey small adjusting screws on the stator ,clockwise 1/4 turns .

If this does not solve the problem , replace rotor.
Thanks, I will try and write back results.
You wellcome . Please ,do not forget to tighten the main screws again, after adjusting the small screws.
Hi, I regulated small/large screw balance so the valve turns smoothly, with just a slight resistance.

Unfortunately nothing changed - error #119 during self test...

I will check valve sensor connectors for oxidation. I’m 100% sure this test was fine few months ago and devices were sitting unused in that time.
5 posts Page 1 of 1

Who is online

In total there are 2 users online :: 1 registered, 0 hidden and 1 guest (based on users active over the past 5 minutes)
Most users ever online was 1117 on Mon Jan 31, 2022 2:50 pm

Users browsing this forum: Google [Bot] and 1 guest

Latest Blog Posts from Separation Science

Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

Subscribe to our eNewsletter with daily, weekly or monthly updates: Food & Beverage, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Liquid Chromatography

Gas Chromatography

Mass Spectrometry