Smartline Autosampler 3900 Manual / Handbuch V 1508 03/2007
Smartline Autosampler 3900 Manual / Handbuch V 1508 03/2007
Smartline Autosampler 3900 Manual / Handbuch V 1508 03/2007
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12 About AS <strong>3900</strong><br />
Side-port needle: a good point!<br />
The strong side-port needle combines the optimum point style for piercing<br />
with a minimum risk of blockage by septum particles. For small sample<br />
volumes, a spring-loaded needle is available for maximum sample<br />
aspiration independent of variations in vial dimensions.<br />
Column oven for consistent results.<br />
A column oven is an integral part of AS <strong>3900</strong>, because constant column<br />
temperature is important for long term stability of a chromatographic<br />
separation and may be required by GLP directives.<br />
Integrated sample cooling option.<br />
Thermo-electric sample cooling is available as a fully integrated option.<br />
No external device is required and the efficient cooling concept does not<br />
restrict access to the sample tray during operation.<br />
Reagent addition made simple.<br />
Internal Standard addition, sample dilution or derivatization can be<br />
programmed in a very simple manner. A single-stage derivatization of a<br />
sample in a separate (destination) vial requires no more than 4 program<br />
lines. Multi-reagent addition is also possible: two large volume reagent<br />
vials are available on the sample tray.<br />
PC-based control.<br />
For communication with external computers, a serial interface and<br />
<strong>Smartline</strong> communication protocol are standard. A Microsoft® Windows<br />
based software package for AS <strong>3900</strong> control from a PC greatly improves<br />
operation and programming convenience and extends programming<br />
capabilities. A printout of all relevant system parameters is another<br />
valuable plus when using PC control. The Microsoft® Windows<br />
package will become available by the end of 1996.<br />
Service friendly design.<br />
Low instrument down time is accomplished by a high mean time between<br />
failure and quick instrument service. Special attention has been paid to<br />
these aspects of the concept, as is illustrated by the injection valve: AS<br />
<strong>3900</strong> will alert you in case the lifetime of the seal is exceeded or if the<br />
switching torque becomes too high. This allows preventive maintenance<br />
before injection performance degrades. And if necessary, the entire<br />
injection valve can be replaced in seconds with the unique Quick-fit valve<br />
mounting mechanism.
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