What do these products do in this instrument?
Sampling probes: fixed-probe interface at the vessel
In fixed-probe configurations, connect source liquid and target container while coordinating drive, liquid level and motion. Probe position, hanging droplets and internal/external washing affect the actual pipetting sequence.
Custom sampling probes connect source containers to receiving positions. Diameter, tip, surface and interface depend on sample and container. Tip geometry must work with metering drive and motion sequences.
Match component geometry to actual containers
Sampling probes must fit container openings, bottoms, minimum levels and motion strokes. Record actual contact surfaces and permitted positions before defining tips, interfaces and motion space; appearance alone is insufficient.
Evaluate interfaces by receiving or cleaning results
At the source, check reachable positions and low remaining volume; at the receiver, check actual volume, droplets or permitted residue. Test wetted-surface maintenance and recovery for the next container during consecutive operation. Reconfirm position and delivery after changing probes, tubing length or containers.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Container and position | Provide opening, bottom, minimum level, positioning error and available motion space. |
| Liquid contact and surfaces | Specify sample or reagent, residue requirements and internal/external probe cleaning. |
| Actual function | Check delivery, coverage, residue, solid-phase retention or mixing results according to the task. |
| Operation | Specific operating conditions |
|---|---|
| Washing or tip change | Fixed-probe or tip architecture, wetted surfaces, tip-change rules and contamination targets |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| Custom sampling probe | Sampling interface between source container and fluidic path | Compare custom geometry by minimum liquid level, probe-tip clearance and actual sample |
Explore specific operating and validation tasks
Washing or tip change
For reusable probes, manage internal and external wetted surfaces. For disposable tips, manage pickup, changes and disposal. Use sample sequences and blanks to determine whether the strategy is adequate.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Washing or tip change | For fixed needles, check washing and blank recovery. For tip-based architectures, check pickup sealing, tip replacement and contamination across sample sequences. | Insufficient wash coverage, a missed tip change or a failed seal may affect the next sample |
Measure delivery with actual liquids, tips and well positions, including idle periods, refills and multiple dispensing.
Can sampling and wash probes be replaced based on similar appearance alone?
Confirm tip, channels, interfaces and operating positions separately, then validate each probe's aspiration/dispensing or cleaning results. Similar appearance does not imply equal wetted volume, coverage or residual-liquid levels.
Nominal capacity and volume per step do not establish the minimum reliable pipetting volume. Disposable tips and reusable probes require different cleaning strategies.