What do these products do in this instrument?
Tubing and fittings: connecting feed, culture and sample destinations
Build the actual wetted path for each branch, checking materials for formulation, temperature and run duration. Include shared-section renewal and all sampling consumption in the process budget.
Tubing and fittings together form sealed connections and the actual transfer path. Check formulation, inner/outer diameters, length, tube-end positioning and port geometry, including added volume in residue and arrival delay.
Design tubing and fittings as a complete wetted path
Tubing, fittings and ports jointly determine sealing, transfer volume and medium-contact coverage. Materials and dimensions must suit formulation, operating conditions and installation. Include tubing length and interface volume in priming, shared residue and arrival delay. After connection changes, recheck delivery and cleaning through the actual path.
Calculate connection volume and post-maintenance recovery
Shared volume affects liquid arrival and flushing; interface gaps may retain the previous composition. Record length, actual bore and tube insertion position. After disassembly, reprime and check seals, then compare first-cycle delivery, blanks or recovered product to confirm path recovery.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Materials and assembly | Provide formulation, tubing inner/outer diameters, length, fitting structure and port fit. |
| Volume and load | Calculate shared and replacement-component added volumes; measure actual flow and response. |
| Maintenance recovery | Record disassembly locations and added volume; recheck priming, sealing and first-cycle received results. |
| Operation | Specific operating conditions |
|---|---|
| Air-containing waste aspiration and post-maintenance restart | Liquid or gas-liquid inlet conditions, peak incoming flow, allowable accumulation, lift and waste container |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| Tubing materials and dimensions | Connection paths and shared volume | Bore, length, load and actual formulation jointly determine materials and dimensions |
| Rigid-tubing fittings | Tube-end positioning and sealed connections | Check tube outer diameter, threads, seal structure and port-bottom geometry |
Related operations and architecture comparisons
Air-containing waste aspiration and post-maintenance restart
Confirm suitable conditions separately for air-containing aspiration and liquid-only drainage. After maintenance, check sealing and isolation before resuming culture operations.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Air-containing waste aspiration and post-maintenance restart | Test emptying, liquid accumulation and interlocks after a full-vessel or blockage condition using the actual incoming liquid. | Leaks, foam, blockages or a full container can reduce actual drainage capacity. |
Check cumulative feeding, sampling representativeness, volume balance and recovery during long runs.
Does a fitting that tightens prove the tubing assembly is suitable?
Also confirm port geometry, tube-end positioning and seal fit. Check leakage, hold-up and performance after repeated maintenance under actual conditions; thread engagement alone is insufficient.
Bubble and pressure signals describe fluid-path conditions; they do not directly measure pH, dissolved oxygen or growth. Validate the complete aseptic boundary separately.