What do these products do in this instrument?
Multiport rotary valves: selecting sources, stations and maintenance paths
Establish the current connection in fixed paths with multiple sources or stations, coordinated with metering drives and task scheduling. Record the current sample, valve position and target vessel together, and define where displaced shared-path liquid goes.
MRV3 selects sources or destinations and requires a port-state diagram and shared-volume budget. Port count indicates routing options; confirm pressure in each state and independent simultaneous supply requirements separately.
Define connections using the instrument's port-state diagram
This page covers multiport rotary valves. Mark every port, current source, receiving destination and branch requiring isolation, and check connections during aspiration, delivery, cleaning, maintenance and power loss. Valve selection must correspond to conditions permitting the drive action.
Include renewal of shared segments after switching in the sequence
After source switching, shared tubing may retain the previous composition. Record volume and arrival delay from the new source to the receiver, and measure residue and recovery for the actual worst-case switching combination. Confirm port positioning and arrival of new liquid separately.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Connections and pressure | Provide port diagrams and pressure conditions for all operating, cleaning and shutdown states. |
| Shared volume | Identify residue locations after source changes, flushing volumes and discharge destinations. |
| Control and isolation | Check valve-position feedback, pump actions, shutoff leakage and permitted power-off states. |
| Operation | Specific operating conditions |
|---|---|
| Path scheduling | All ports, valve states, pressures in each state, shared volume and flushing volume |
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 |
Explore specific operating and validation tasks
Path scheduling
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.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Path scheduling | Check unintended connections, leakage, backflow and post-switching residue in each state; measure flushing volume and arrival delay through the complete path | Misalignment, shared-segment residue or abnormal switching pressure may affect the next task |
Validate working volume, timing across workstations, sample identity and the first operation after restart together.
Do more valve ports mean more channels can supply liquid simultaneously?
Check port connection structure and drive configuration. The number of selectable sources, independent paths and simultaneous-operation capability are different conditions, determined by actual connections in each state.
Successful platform operation does not replace assessment of nucleic acid, cell or analytical method results.