204
Introduction to the Autosampler
Sampling Sequence
Sampling Sequence
The movements of the autosamplers components during the sampling
sequence are monitored continuously by the autosamplers processor. The
processor defines specific time windows and mechanical ranges for each
movement. If a specific step of the sampling sequence is not completed
successfully, an error message is generated.
Solvent is bypassed from the autosamplers by the injection valve during
the sampling sequence. The sample vial is selected by a gripper arm from a
static sample rack, or from external vial positions. The gripper arm places
the sample vial below the injection needle. The required volume of sample
is drawn into the sample loop by the metering device. Sample is applied to
the column when the injection valve returns to the mainpass position at
the end of the sampling sequence.
The sampling sequence occurs in the following order:
1
The injection valve switches to the bypass position.
2
The plunger of the metering device moves to the initialization position.
3
The gripper arm moves from the home position, and selects the vial. At
the same time, the needle lifts out of the seat.
4
The gripper arm places the vial below the needle.
5
The needle lowers into the vial.
6
The metering device draws the preset sample volume.
7
The needle lifts out of the vial.
8
If the automated needle wash is selected (see “Using the Automated
Needle Wash” on page 41), the gripper arm replaces the sample vial,
positions the wash vial below the needle, lowers the needle into the vial,
then lifts the needle out of the wash vial.
9
The gripper arm checks the safety flap is in position.
10
The gripper arm replaces the vial, and returns to the home position.
Simultaneously, the needle lowers into the seat.
11
The injection valve switches to the mainpass position.
Содержание G1313A
Страница 1: ...s1 Agilent 1100 Series Standard Micro and Preparative Autosamplers Reference Manual ...
Страница 3: ...Reference Manual Agilent 1100 Series Standard Micro and Preparative Autosamplers ...
Страница 12: ...12 Contents ...
Страница 39: ...2 2 Optimizing Performance How to optimize the autosamplers to achieve best results ...
Страница 49: ...3 3 Troubleshooting and Test Functions The modules built in troubleshooting and test functions ...
Страница 93: ...93 Troubleshooting and Test Functions Step Commands ...
Страница 159: ...5 5 Parts and Materials Detailed illustrations and lists for identification of parts and materials ...
Страница 160: ...160 Parts and Materials Main Assemblies Main Assemblies Figure 19 Autosampler Main Assemblies 5 3 4 2 1 9 8 7 6 ...
Страница 166: ...166 Parts and Materials Analytical Head Assembly Figure 21 Analytical Head Assembly 2 3 4 5 6 1 ...
Страница 191: ...191 Parts and Materials Remote Cables NOTE START and STOP are connected via diodes to pin 3 of the 3394 connector ...
Страница 216: ...216 Introduction to the Autosampler Electrical Connections ...
Страница 217: ...7 7 Theory of Operation Theory of operation of mechanical hardware electronics and instrument interfaces ...
Страница 244: ...244 Theory of Operation The Main Power Supply Assembly ...
Страница 265: ...265 Introduction to the Control Module Diagnostics and Tests ...
Страница 268: ...268 Introduction to the Control Module Diagnostics and Tests ...
Страница 269: ...9 9 Specifications Performance specifications of the Agilent 1100 Series Standard Micro and Preparative Autosamplers ...
Страница 274: ...274 Specifications Performance Specifications ...
Страница 275: ...10 Legal Safety and Warranty Information ...
Страница 286: ...286 Agilent Technologies on Internet ...
Страница 290: ...290 Index ...
Страница 291: ......