8 Maintenance
130 Operation Manual
EMF Counters for Autosamplers
The GC provides access to the counters for the autosampler. The functionality for ALS
counters depends on the ALS model and firmware version. In all cases, the GC shows EMF
counter status and allows you to enable, disable, and reset the counters using the touchscreen
or Browser Interface.
Counters for 7693A and 7650 ALS with EMF-enabled
firmware
If using an Agilent 7693 injector with firmware version G4513A.10.8 (or higher), or a 7650
injector with firmware version G4567A.10.2 (or higher), each injector independently tracks its
EMF counters.
• The injector counters will increment as long as the injector is used on an 8890 Series GC.
You can change positions on the same GC or install the injector on a different GC without
losing the current ALS counter data.
• The ALS will report an exceeded limit only when mounted on an 8890 GC.
Counters for ALS with earlier firmware
If using a 7693 or 7650 injector with earlier firmware, or if using another injector model, the GC
tracks the counters for that injector. The GC uses the injector serial number to distinguish
between installed injectors, but only maintains up to two sets of counters—one for the front
injector, and one for the back injector.
• The GC will track injector counters regardless of installed position (front or back inlet).
Because the GC tracks the injector serial number, you can change the injector position
without losing the counters as long as the injector remains installed on the GC.
• Each time the GC detects a new injector (different model or different serial number), the GC
resets the ALS counters in the new injector’s position.
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