What do these products do in this instrument?
Multiport rotary valves: measurement, washing and maintenance-path selection
Use actual port states to connect samples, analytical interfaces and maintenance destinations, coordinated with pumps and data-validity status. Prevent old samples, wash liquid or maintenance discharge entering measurement.
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.
Solenoid valves: branch shutoff and fault interlocks
Coordinate supply, maintenance or drainage in actual on-off configurations with stop-measurement and restart programs. Confirm destinations under normal operation, power loss and communication faults.
Solenoid valves control branches according to actual ports, flow direction, differential pressure and power-off state. Check opening/closing order with pump commands; inspect shutoff leakage and shared residue separately.
Define connections using the instrument's port-state diagram
This page covers multiport rotary and solenoid valves. Mark each port, current source, receiver and isolated branch, checking connections during aspiration, delivery, cleaning, maintenance and power loss. Valve selection must match conditions permitting drive actions.
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 management | Task state, sample or vessel identity, concurrent resources, interlocks and restart |
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 |
| SV10 solenoid valve | On/off control or branch selection | Check normal state, differential pressure, flow direction and duty cycle; high-pressure tasks require a separately suitable configuration |
Explore specific operating and validation tasks
Path management
Specify destinations for old samples, wash liquid and maintenance drainage. Record renewal time at each restoration stage so an unrenewed signal is not labeled as a new sample.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Path management | Test concurrent operation, limiting states and complete fault recovery; verify that identities, cumulative quantities and records match actual actions | Resource conflicts, communication loss or mismatched identities can cause delivery to the wrong destination or repeated dosing. |
Cover extended operation, maintenance, power loss, empty sources and blockage recovery, including data flags.
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.
Validate field service life and maintenance intervals under actual conditions; motor life or free-flow ratings alone are insufficient.