Where path scheduling occurs in the instrument
Build a state table for reagents, stations and waste destinations. Include shared-pump or shared-valve occupancy, queuing, displacement and interlocks in scheduling to prevent concurrent tasks competing for the path.
Port count alone does not establish whether one pump or valve can serve simultaneous tasks. Define occupancy, release and displacement conditions for each action to prevent conflicting resource use.
Product responsibilities in this operation
Valves control the current source or destination; the associated drive performs metering or transfer. Port connections, actual positioning and shared-segment renewal must match the operation.
For sample preparation path scheduling, confirm all ports, valve states, pressures in each state, shared volume and exchange volume.
Organize the sequence by actual architecture
- Create a port-state table for reagent sources, shared metering paths, processing stations and waste. Identify pumps, valves or channels that cannot serve two tasks simultaneously.
- After the current task acquires the required resources, check source, receiving station and allowable pressure, then switch paths and verify actual connections.
- Handle shared-section residue according to the next reagent or product requirements, sending displacement liquid to its designated destination. Perform the liquid operation after confirming arrival of the intended liquid.
- Record actual receipt and affected samples, then release resources after restoring the prescribed standby state. After interruption, retain occupancy and completed-volume records so another task cannot use an unrestored path.
Define operating conditions for this task
| To define | Details |
|---|---|
| Actual operating conditions | All ports, valve states, pressures in each state, shared volume and flushing volume |
| Acceptance target | Check unintended connections, leakage, backflow and post-switching residue in each state; measure flushing volume and arrival delay through the complete path |
| Fault localization | Misalignment, shared-segment residue or abnormal switching pressure may affect the next task |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| MRV3 multiport rotary valve | Multiple-source selection | Compare 10-, 16- and 24-port options and port diagrams; verify high-pressure suitability separately |
Validate operation results at the receiver
Check unintended connections, leakage, backflow and post-switching residue in each state; measure flushing volume and arrival delay through the complete path.
Validate working volume, timing across workstations, sample identity and the first operation after restart together.
Locate abnormalities and restore the next operation
Misalignment, shared-segment residue or abnormal switching pressure may affect the next task.
Stop the pump, check port states and flush again after recovery.
Successful platform operation does not replace assessment of nucleic acid, cell or analytical method results.