HPLC 1090 auto sampler problem

[faris]

The auto sampler is not working due to low air pressure. If there is a certain value I have to check. Any advice will be appreciated. Faris

[Consumer Products Guy]

Is your house air supply or cylinder supplying adequate pressure to the autosampler? If so, you may have an internal air leak.

[expchem]

You have to be able to provide 5 bar on the inlet of the instrument. The easiest way is to have a compressor like we to in our lab.

[nima-ch]

Hp 1090 contains a pressure sensor mounted under the auto sampler table which show that the air pressure is ok or not. you should watch instrument condition in chem station panel. there is a text (airp) with yellow background sign if no pressure available and it goes green if the air pressure become adequate.