What do these products do in this instrument?
Bubble and pressure detection: signals for recording abnormal feed intervals
Provide bubble or pressure signals at actual feed locations, alongside measured delivery, cumulative material and control records. The process program determines whether to compensate a shortfall and the permitted recovery rate.
ABD provides bubble or liquid-state signals for defined tubing; PDM5 provides pressure information at a defined location. Configure module, position and action window separately; the controller associates affected samples or tasks.
Match sensing locations to specific fluidic problems
Bubble modules report bubble or liquid state in defined tube segments; pressure modules report pressure at defined positions. Before selecting mounting points, define the phase and abnormality to observe: aspiration, delivery, source depletion or branch-load changes. Associate sensor positions with affected samples, cuvettes or stations.
Connect signals, action windows and recovery conditions
The same signal may mean different things at different valve positions or operating phases. Record normal ranges and faults with actual liquids, tubing and sequences. The controller combines action timing, confirmed delivery status, volume records and sample identity to pause, review or recover; one pressure change cannot directly identify a blockage location or specific cause. Distinguish measured, estimated and unknown volumes; completion of a command does not prove actual liquid delivery.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Installation conditions | Specify tubing dimensions, liquid, sensing location and branch to observe. |
| Timing and baseline | Record valve positions, pump actions, normal changes and fault-detection windows. |
| Abnormality handling | Associate affected containers with confirmed delivery status and volume records; define conditions for review, continuation or re-execution. Distinguish measured, estimated and unknown volumes; completion of a command does not prove actual liquid delivery. |
| Operation | Specific operating conditions |
|---|---|
| Feedback and records | Specific sensor configuration, location, liquid/tubing, sampling rate, threshold and time window |
Feedback and records
Associate pump commands, measured delivery, abnormal time windows and cumulative material records. Pressure or bubble signals indicate flow-path conditions; process loops such as pH control need corresponding sensors and control programs. The process defines whether and how much to compensate after interrupted feeding and the recovery rate. Do not automatically make up cumulative shortfall alone.
Measure fault detection, false alarms and end-to-end response separately; cover baseline changes with liquid, speed and operating conditions
Normal air segments, viscosity changes and sampling delays may be misclassified. The controller determines task validity; sensors alone do not prove dose or assay results.
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| ABD bubble-detection module | Bubble or liquid-state identification in defined tubing | Validate detection and false alarms for tubing material, dimensions, medium and action window |
| PDM5 pressure-detection module | Pressure-state monitoring at a defined fluidic location | Confirm range and wetted configuration by model; validate normal baseline and abnormalities separately |
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Feedback and records | Measure fault detection, false alarms and end-to-end response separately; cover baseline changes with liquid, speed and operating conditions | Normal air segments, viscosity changes and sampling delays may be misclassified |
Record output across the run, replenishment interruptions, first flow after bottle changes and reactor volume balance.
Can dispensing be repeated immediately after bubbles or abnormal pressure are detected?
First establish whether partial delivery has occurred and which container is affected. Immediate repetition may double-dose it. Act on the actual state and recheck the first cycle after recovery.
Refilling or resetting a single syringe can interrupt supply. Continuous-operation capability and aseptic isolation both require system validation.