Where reusable-path cleaning and first-dose recovery occur in the instrument
Define wash fluid, duration and emptying by cross-effects of the specific reagents. Evaluate post-wash residue and the next reaction; use dedicated paths or consumables where needed rather than uniformly increasing wash counts.
Residual wash fluid may alter the next formulation or carry contamination. Check internal flushing, external coverage and the first dose through the cleaned path, evaluating residue effects with the assay.
Product responsibilities in this operation
Diaphragm pumps perform suitable liquid supply or aerated aspiration in this task. Confirm inlet phase, branch location and outlet destination separately, then check each branch's operating point.
Compare DPL30, DPL60 and DPL30H by actual supply load. Wash-head, valve, tubing and container resistance jointly determine installed flow; check the supply window and receiving position together.
For this operation, confirm: Reusable wetted surfaces; reagent cross-effects; wash formulation and contact; supply and separate drainage; residual liquid; first-dose volume and arrival time.
Organize the sequence by actual architecture
- For only the reusable probes or wetted paths actually used, confirm contaminated surfaces, wash fluid, supply interfaces and separate discharge destinations.
- Use the supply branch to achieve required coverage and contact, checking wash-fluid arrival under actual tubing and probe-tip loads.
- Remove wash fluid using the instrument's drainage design and establish whether residue affects the next dose. Check drainage configuration separately against actual inlet conditions.
- After cleaning, validate first-dose volume, arrival time and assay results separately before resuming the reaction sequence.
Define operating conditions for this task
| To define | Details |
|---|---|
| Actual operating conditions | Reusable wetted surfaces; reagent cross-effects; wash formulation and contact; supply and separate drainage; residual liquid; first-dose volume and arrival time |
| Acceptance target | For reusable probes or paths, verify internal flushing, external coverage and removal of wash fluid under the actual load. Measure the first subsequent dose at the cuvette and record its arrival time. |
| Fault localization | Incomplete coverage or drainage can leave wash fluid in the next dose. A path may regain flow while first-dose composition or arrival delay remains unsuitable for the reaction sequence. |
Further technical reading
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| DPL30 liquid diaphragm pump | Liquid supply or auxiliary circulation | Select by installed resistance, actual wash or working fluid and task window |
| DPL60 liquid diaphragm pump | Liquid supply or auxiliary circulation | Judge by peak demand and installed operating point, not free flow alone |
| DPL30H high-backpressure liquid diaphragm pump | Liquid branches requiring higher backpressure capability | Calculate pressure budget and actual flow first, then confirm interfaces and materials |
Validate operation results at the receiver
For reusable probes or paths, verify internal flushing, external coverage and removal of wash fluid under the actual load. Measure the first subsequent dose at the cuvette and record its arrival time.
Assess whether retained wash fluid or reagent residue changes the next formulation or complete assay result. Keep this check specific to the reagent sequence and reusable parts fitted to the instrument.
Locate abnormalities and restore the next operation
Incomplete coverage or drainage can leave wash fluid in the next dose. A path may regain flow while first-dose composition or arrival delay remains unsuitable for the reaction sequence.
Pause additions through the affected reusable path and review any cuvette already exposed. Restore cleaning and drainage, verify first-dose volume, arrival and the method result, then resume the reaction program.
This cleaning task applies to reusable wetted parts; it does not prescribe washing disposable reaction cells. Recovered pump flow alone does not establish readiness for the next assay.
References
View references (4)
- [1]FOREACH DPL30 liquid diaphragm pump: configurations and specifications
- [2]FOREACH DPL60 liquid diaphragm pump: configurations and specifications
- [3]FOREACH DPL30H high-backpressure liquid diaphragm pump: configurations and specifications
- [4]Sysmex CA-600: clotting, chromogenic and immunoturbidimetric configurations