Press release BoxID: 147063 (Miele & Cie. KG)
  • Miele & Cie. KG
  • Carl-Miele-Straße 29
  • 33332 Gütersloh
  • Contact person
  • +49 (5241) 89 1953 bis 1956

Safe and efficient: New Miele washer for larger laboratories

Monitoring functions, display and controls ensure optimum reprocessing results

(PresseBox) (Gütersloh, ) Ensuring that standards of apparatus cleanliness do not jeopardise the outcome of analytical experiments is of ultimate importance in large laboratories and requires complex treatment processes and excellent efficiency. A new single-cabinet unit from Miele with the model designation PG 8527 will simplify and speed up the task of reprocessing laboratory glassware. This new unit is also extremely versatile, adapting easily to changing workloads and adjusting to differing user requirements. This lab washer can also be supplied as a two-door unit for installation in a diaphragm wall.

The model features Miele's new, simple-to-use PerfectTouch display. This display and the controls are set in a perfectly flush glass screen, allowing simple and effective surface disinfection. The controls are outlined on the glass surface and slight pressure is enough to activate functions and launch programmes, even when wearing protective gloves. Programme selection and all manner of programming is simplified by line navigation using intuitive controls which do not require explanation or practice.

The new Profitronic+ controls give laboratory staff full control over display contents and the data contained in optional protocol printouts. Actual and target temperatures and dispensing volumes can be indicated in the display and the on-board unit has the capacity to save up to 150 programme protocols. A graphic representation of washing and drying temperatures on peripheral units is also possible.

PerfectSpeed: Spray arm monitoring

The machine's display indicates whether rotational speeds are within the specified range or whether intervention is needed, for example on account of rotation of the lower spray arm being slowed down by an excessive build-up of foam. This is achieved using a PerfectSpeed spray arm monitoring unit, a standard feature for which patents are pending on all models. This device monitors and documents the precise rotational speed of each spray arm in the cabinet, including the two fixed spray arms and those on board mobile injector units. Information on how many spray arms to monitor is provided by the magnetic coding strips on baskets and inserts. All readings are continuously compared with the predefined target range. Out-of-range readings result in the programm aborting automatically to allow the user to eliminate the cause of the problem. This saves valuable time for more serious laboratory business. The process documentation system can be programmed to record any discrepancies that may occur during reprocessing.

Miele's new dispensing PerfectFlow volume control system offers a much greater margin of safety than previous systems. This system is in a position to dispense detergents and process chemicals with great precision, irrespective of the viscosity of the fluid and ambient temperatures which may influence fluid flow properties. This new technology is far superior to other measuring systems such as simple flowmeters as these are at the mercy of ambient conditions.

Maintenance-free PerfectPure conductivity metering detects residue in wash liquor

Even the slightest traces of residue in wash liquor can seriously impair reprocessing results. The controls on this new line of machines can be programmed to warn operatives in the event that the conductivity in the last rinse cycle is out of range with respect to values entered by the user. If this is the case, further rinse cycles can be added automatically. With this new generation of machines, Miele is offering an absolutely maintenance-free conductivity metering system, incurring no further costs for maintenance and calibration. The PerfectPure unit registers all trace substances in the wash liquor which may impact conductivity. The meter is located in the water circuit between the circulation pump and the upper and lower spray arms and is a contact-free device without any physical contact with the wash liquor. This precision process, patents pending, measures conductivity in two ranges, from 0-100.000 µS/cm.

Within a matter of seconds, the PerfectTouch display can be set up to relay data wirelessly to a technician's laptop computer using Miele's new remote service module. Link-ups using telecommunication technology also allows remote trouble-shooting and the remote modification of existing programmes. This improves uptime and machine availability and reduces servicing outlay.

Hygiene and convenience benefits

Further innovations ensure enhanced hygiene and improved user convenience. These include the cove-cornered cabinet made from high-grade stainless steel with sloping horizontal surfaces designed to induce self-draining and improve hygiene. An all-glass door and cabinet lighting package, called PerfectVision, is available as an optional extra to permit a perfect view of the machine cabinet. This allows the positioning of the load to be checked at all times during reprocessing.

Optimum hygiene is also guaranteed during the drying phase. A high-temperature HEPA filter at the entrance to the cabinet prevents for example the introduction of particulate contamination into the cabinet. PerfectHEPA drying further reduces the need for servicing.

The safe reprocessing of laboratory glassware such as pipettes, beakers and Erlenmeyer flasks is guaranteed using the tried-and-tested modular system consisting of mobile injector units, baskets and inserts. Items such as wide-necked bottles and petri dishes are held secure during reprocessing in specially designed inserts.

New programme for particular soil types

In addition to the tried-and-tested 'Standard', 'Universal' and 'Intensive' programmes, the machine is equipped with the new 'Anorganica' and 'Organica' special programmes and, as an optional extra, 'Oxivario'. 'Anorganica', for example, is designed for use on glassware contaminated with inorganic residue 'Organica' has been developed to remove solid or viscous organic matter such as oil, grease, wax or ointment. The 'Oxivario' programme is mainly used for the removal of organic matter (e.g. proteins) through oxidation in the field of instrument processing or microbiology. Furthermore, the machine also features thermal disinfection programmes, permitting laboratory glassware from microbiological or clinical laboratories contaminated with microorganisms to be disinfected with an adequate margin of safety.