Locate the source, drive and receiving position for this task
The pump drives an air column. Liquid is aspirated into a disposable tip and transferred to the target vessel; it generally does not pass through the drive pump. The illustration shows operational relationships.
Define disposable-tip or fixed-probe architecture, sealing, working volume, liquid class, immersion position and dispensing action. Follow the diagram to confirm liquid contact, pressure and destination before assigning drive and connection roles.
Set operating points for the tip and liquid class
Select actual tips, routine doses and containers before establishing liquid-class programs. Liquids with different viscosity, volatility and surface tension need appropriate parameters. When comparing SMTP2 and SMTP4, confirm capacity and interfaces for the specific configuration.
| Condition to compare | Information required | Selection affected |
|---|---|---|
| Tip interface | Actual tip model, sealing and mounting position | Validate the connection before assessing volume |
| Liquid class | Volatility, viscosity, wetting and temperature | Set aspiration, dispensing and waits separately |
| Task scope | Dose, container and usable tip capacity | Select the drive and liquid-handling program |
Compare product options against task requirements
The following candidate options match this page's responsibilities. Compare them against the operating conditions described, then check capacity, materials and interfaces on the product pages. Card images show representative configurations; suitability must still be confirmed at actual operating points and by application results.
| Product category | Corresponding role | Confirm before selection |
|---|---|---|
| SMTP air-displacement pipetting pump | Air displacement with disposable tips | Validate tip sealing, liquid type and motion together |
Organize actions from tip pickup sealing through disposal
Pick up the tip and confirm sealing, locate the liquid surface, then aspirate, transfer and dispense before ejecting according to procedure. Choose air gaps, dwell, touch-off and blowout according to the actual liquid and receiving task.
Action records should link commands, valve or interface states and actual received results. When raw material, container or sample identity changes, reconfirm shared paths and conditions permitting the next step. Completion of drive movement alone does not replace task acceptance.
Validate actual delivery at the destination
Measure delivered volume at the target well or vessel, including tip pickup, low source volume, first and last doses and actual media. A fitted tip does not establish an adequate seal. Validate contamination controls across sample sequences.
| Validation scenario | Measurement or observation | Interpretation and action |
|---|---|---|
| Delivery operating conditions | Measure using actual tips and containers | Revalidate after changing tips or liquids |
| Sequential operations | Include tip pickup, transfer and disposal cycles | Distinguish errors from sealing, retained droplets and motion |
Record test medium, configuration, installed path and operating sequence; present routine operating points and boundary results separately. Calculations support design discussions, component documentation checks models, and installed measurements confirm the actual task.
After an abnormality or maintenance, first identify which segment needs recovery
Seal leaks, aspiration of air, hanging droplets or incorrect immersion can alter delivery. Check actual results from the affected step before resuming the next action.
Retain current source, container identity, completed actions, valve or interface state and actual receiving information. Use the table to locate the stage that changed before deciding to retry, continue or restart. After recovery, recheck the relevant operating point before returning an uncertain action to the automatic cycle.