Miele laboratory washer PLW 8683 CD DC5 CM
This dishwasher, specially developed for laboratory use, ensures efficient and safe cleaning of a wide range of analysis and sample vessels. Whether narrow-necked tubes, pipettes or large-volume laboratory bottles: Thanks to the sophisticated loading system and integrated hot air drying, this appliance is predestined for the highest cleanliness requirements. The model scores points in particular for its flexible adaptability to different wash items and the ability to implement processes within a short time, thus saving valuable working hours in the laboratory. Compared to many other devices on the market, it offers comprehensive monitoring of important parameters and supports seamless documentation of processes with the help of integrated interfaces.
Versatile cleaning technology and intelligent monitoring
One of the core functions is precise pressure and spray arm monitoring. This enables continuous control of the cleaning process and prevents blocked spray arms from going unnoticed or a drop in rinsing pressure leading to poor results. In addition, the integrated conductivity measuring system allows precise control of rinsing solutions and rinse water. In this way, the appliance ensures that only the optimum media are used for the critical cleaning of sensitive laboratory glassware.
The rinsing chamber made of high-quality stainless steel (1.4301/304) is seamlessly welded, making it easy to clean and resistant to a wide range of chemicals. It has a total usable volume of 145 liters, allowing larger batches - up to 128 laboratory bottles - to be processed in a single pass. In addition, 98 pipettes can be cleaned per batch in combination with other laboratory glassware. With a circulation pump of up to 500 l/min and a maximum rinsing temperature of 93 °C, even stubborn soiling can be thoroughly removed.
DryPlus technology is used for drying, which uses an upstream H14 HEPA filter (99.995% filtration efficiency) to channel low-particle and temperature-stable air into the wash cabinet. This ensures that the inside of the glassware is dried without streaks, which is crucial for temperature- and purity-critical laboratory items such as Erlenmeyer flasks, vials or test tubes.
Modularity and user-friendly control
The modular configuration with load carriers and the EasyLoad system ensure fast and uncomplicated placement of the wash items. The holding positions are designed in such a way that the distances can be adjusted without time-consuming adjustments. This allows optimum use to be made of performance and space resources.
Control is via the M Touch Flex full-touch color display. All programs can be individually adapted or newly created here, which is essential for different laboratory applications, for example. The dishwasher has 20 factory-set programs, 10 of which can be freely configured. The status of the appliance and the remaining running time are also clearly displayed.
Important technical key data at a glance
- Two washing levels with direct connection of the load carriers
- Shortest program runtime from 20 minutes
- Tested operating hours: 15,000
- Total connection: 9.3 kW (at 3N AC 400V 50HZ)
- HEPA filter class H14 for DryPlus drying
- Water protection system Waterproofsystem
- WiFi module ex works for process documentation
Other details such as the standard dosing pumps (detergent, neutralizing agent, optional additional pump) or the extensive range of programs (intensive, agar, pipettes, inorganica, organica and much more) demonstrate the versatility of the model. The washer is also RoHS-compliant and meets standards such as EN 61010-1 and EN 61010-2-040.
Concrete fields of application
In chemical and biotechnological laboratories, the device is ideal for processing both corrosive substances and heat-sensitive plastics with various cleaning cycles. For medical research laboratories, the washer offers reliable cleaning and drying results for pipettes, petri dishes, flasks and centrifuge tubes. It is also suitable for quality tests in industrial settings where residues of oil, grease or other contaminants need to be removed from glass vessels without leaving any residue. Researchers working with agar, organic solvents or pH-sensitive media benefit in particular from the individually programmable rinsing sequences and differentiated temperature control.
Certifications and standards
The appliance bears the VDE mark (electrical safety) and meets the IP protection class standard IP 21. In addition to the relevant EN standards, the model supports the RoHS Directive 2011/65/EU. This documents compliance with a high level of safety and environmental compatibility. The integrated water softener also contributes to a consistently high cleaning performance, as limescale deposits can be avoided in the long term.
Frequently asked questions
How often should the HEPA filter and other components be changed?
The HEPA filter of the drying unit has a service life of up to 200 hours. Nevertheless, it is advisable to check the components regularly and replace them if necessary to ensure a consistently high level of cleanliness.
Can I also use more aggressive chemicals in the cleaning process?
Thanks to the use of high-quality stainless steel and the multi-component filter system, the washer is designed to handle many common laboratory chemicals. However, compatibility in individual cases should always be checked during laboratory operation.
What exactly does the rinsing pressure monitoring system do?
It continuously checks whether the set flow pressures are being maintained. A drop could indicate clogged nozzles, jammed parts or an insufficient water supply. This prevents impurities from remaining in the wash ware.
Which cleaning programs are suitable for delicate plastics?
The "Plastics" program in particular is designed for thermally and chemically sensitive materials. The moderate temperature combined with adapted dosage prevents deformation or material damage.
Are there standardized procedures for pipette cleaning?
The rinser offers its own pipette program, which ensures particularly thorough rinsing in the narrow channels. The optional direct injection for hollow items supports efficient disinfection and drying.
Conclusion
This laboratory washer is characterized by its variability and reliability when cleaning even the most demanding laboratory glassware. Comprehensive monitoring systems for pressure, spray arms and conductivity as well as a powerful drying unit make it an excellent solution for research facilities, scientific laboratories and industrial quality assurance. The integrated control system, coupled with modular assembly options, reduces the workload and ensures a fast process. At the same time, the device complies with relevant standards and directives, which underlines its safety and durability. This provides laboratories with a powerful, programmable system that can cope with a wide range of requirements and guarantees the highest cleaning standards.
