What do these products do in this instrument?
Liquid diaphragm pumps: probe- and cuvette-wash supply
Supply wash fluid from its container to probe or cuvette washing stations to restore wetted surfaces for subsequent samples. Coordinate wash probes, valve paths and waste branches, checking inner-probe, outer-probe and cuvette coverage separately.
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.
Gas–liquid diaphragm pumps: aerated-waste aspiration
Remove wash fluid and residue from waste branches with intermittently aerated inlets, or serve suitable container-vacuum architectures. Coordinate incoming wash fluid, waste bottles and full-level control to prevent washing-station pooling.
DPGL800 handles gas or gas–liquid aspiration permitted by its specific configuration. Check inlet gas content, foam, peak inflow and container vacuum; use a separately suitable solution for continuous liquid-only transfer.
Define liquid-supply and aerated-aspiration branches separately
Suitable liquid diaphragm-pump configurations supply wash heads, stations or working vessels. Gas–liquid diaphragm pumps serve permitted aerated aspiration or related container-vacuum architectures. Describe actual inlet medium and gas–liquid state first, then determine pump position, incoming source and discharge destination.
Further technical reading
Match supply/removal capacity to washing-station and container conditions
Installed flow depends jointly on pump, tubing, valves, wash head and container; free flow does not directly represent station delivery. Evaluate supply by effective coverage and available time, and waste removal by peak inflow, lift, permitted residual liquid and full-container state. Check the complete wash cycle when supply and aspiration must be coordinated.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Inlet medium | Distinguish liquid-only flow, intermittent gas entrainment and foam, and confirm the aspiration modes permitted by the configuration. |
| Tubing and containers | Provide suction lift, outlet load, tubing and waste-container conditions. |
| Actual supply and removal | Measure incoming liquid, residue and emptying at the station; check handling after full level, shortage or blockage. |
| Operation | Specific operating conditions |
|---|---|
| Probe/cuvette wash supply and waste removal | Wash-fluid formulation, volume/time, spray/aspiration geometry, air/foam and waste capacity |
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 |
| DPGL800 gas–liquid diaphragm pump | Suitable gas–liquid aspiration or container-vacuum branches | Confirm inlet medium and waste architecture; not for continuous liquid-only transfer (100% liquid) |
Explore specific operating and validation tasks
Probe/cuvette wash supply and waste removal
Internal-probe, external-probe and cuvette-bottom residue cannot all be solved by increasing the same supply volume. Check cleaning coverage, aspiration height and waste capacity, then validate recovery with high/low concentration switching and blanks.
Confirm product roles in actual operation
| Operation | Measurements and observations | Priority checks |
|---|---|---|
| Probe/cuvette wash supply and waste removal | Confirm supply and peak waste-removal capacity under installed resistance; measure residual liquid, carryover or assay-specified recovery | Insufficient supply, foam, dry aspiration and a full waste container disrupt the cleaning cycle |
Check delivered volume, first dose after idle and residue after high/low concentration switching at the receiving location.
Do similar nominal supply- and waste-pump flow rates make a matched pair?
Compare peak inflow, effective aspiration and permissible accumulation in the actual installation. The branches may handle different media and operating windows; validate station recovery over the complete sequence.
The assay determines sample suitability; full-scale metering specifications cannot replace small-dose and complete-instrument results.
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]FOREACH DPGL800 gas–liquid diaphragm pump: configurations and specifications