Place the component in the complete analytical fluid path
Container and liquid surfaceProbe approach and immersionAspiration, dispense or mixingInternal and external washNext sample or vessel
Draw the liquid path for prime, normal operation, wash, idle and recovery. Mark which liquid contacts each part and where volume, concentration, pressure or detector response will be accepted.
Select by operating duty rather than a family name
| Configuration | Best starting duty | Boundary to confirm |
|---|---|---|
| Sampling probe | Accurate access to tubes, cups and reaction vessels | Tip geometry, depth, level range and clot risk |
| Wash probe/head | Deliver wash and remove residual liquid | Jet coverage, aspiration height, drainage and foam |
| Mixing paddle | Homogenize reaction liquid | Vessel shape, immersion, speed, shear and washability |
Continue with the application task that matches the liquid movement
Each task guide uses a concrete liquid path, calculation, abnormal-condition table and receiving-position acceptance plan. Choose by what the instrument must accomplish, not by a broad market label.
Provide the inputs that change the configuration
| Input | Provide | Why it changes the design |
|---|---|---|
| Mechanical drawing | Container section, tolerances, motion, minimum clearance and crash state | Defines geometry and mounting |
| Liquid interface | Minimum level, viscosity, clot/particle risk and droplet behaviour | Defines tip and motion program |
| Cleanliness target | Carryover, residual liquid, wash chemistry and time | Defines internal/external wash and station design |
FOREACH can use these inputs to match the product configuration, wetted materials, interfaces and control arrangement. The instrument developer remains responsible for method limits, safety logic and qualification of the complete analyzer.
Verify the result after priming, idle time and a realistic fault
- Record the installed configuration and actual liquid, not only the component model.
- Measure steady operation and the first cycle after priming, planned idle and liquid replacement.
- Challenge the relevant abnormal condition: air entry, restriction, low level, blocked outlet or incomplete wash.
- Accept the result at the receiving vessel, detector or cleaned surface; retain the component-level signal for diagnosis.