What do these products do in this instrument?
Bubble and pressure sensing: signals for fluidic and data-state assessment
Provide bubble and pressure signals at defined liquid-path locations. Interpret faults with source, valve-position and maintenance-stage information. Actual path restoration and method checks determine release of the first valid measurement.
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 |
|---|---|
| Monitoring and recovery | Specific sensor configuration, location, liquid/tubing, sampling rate, threshold and time window |
Monitoring and recovery
Define stop-measurement, alarm and recovery logic for empty sources, blockage, leakage, full waste vessels and communication faults. Use trends and actual sample restoration to determine data validity; one normal sensor signal is insufficient.
Define separate stop-measurement conditions for empty sources, blockage, leaks, full waste containers and communication faults. Verify actual recovery after an alarm clears before accepting valid measurements.
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 |
|---|---|---|
| Monitoring and recovery | 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 |
Cover extended operation, maintenance, power loss, empty sources and blockage recovery, including data flags.
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.
Validate field service life and maintenance intervals under actual conditions; motor life or free-flow ratings alone are insufficient.