1

G 7893 Compact Washer

With Integrated Forced-Air Drying

2

Exceptional DryingIn a Space-Efficient Design

3

Miele G 7893 OverviewAlways an innovator in glassware reprocess-ing, Miele is the first manufacturer to developa 24" wide glassware washer that incorpo-rates true HEPA-filtered forced-air drying.The new G 7893 allows labs to automaticallywash and completely dry glassware right atthe lab bench, while requiring minimal space.This eliminates the need for a bench-topoven for drying, and means that your glass-ware can be washed and dried all withinabout an hour.

The G 7893 is designed for laboratorieswhere space is limited, yet complete, partic-ulate-free drying of glassware and fast turn-around are required. No drying oven is need-ed, as the G 7893 contains a powerful inte-grated drying unit with a genuine HEPA filterthat guarantees the purity of the air used. Foryou this means less handling of glasswareand less time waiting for your glassware tobe available for use.

HEPA-Filtered Forced-Air Drying Miele's HEPA drying system provides a fastermore complete drying result than gravityconvection drying found in many glasswarewashers. Drying times and temperatures(from ambient to 99°C) are fully adjustable tomeet the demands of whatever is beingdried. An integrated steam condenser aidsthe drying process by condensing moist airand sending it to the drain. As a result, nopotentially hazardous vapors are vented intoyour lab.

When combined with injection baskets, heat-ed forced-air blows throughout the chamberand through injectors into each individualpiece of glassware for complete drying evenin difficult narrow-necked items such as vol-umetric flasks or pipettes.

For user safety, a cool-down step can be pro-grammed at the end of the cycle to ensurethat glassware is safe to handle. With thecompact G 7893, the HEPA filter is conve-niently located in the front of the machineand can be replaced by opening the servicehatch for simple removal of the filter.

3

Optimized TurnaroundThe G 7893 provides effective glasswarecleaning and drying as well as exceptionalcapacity and throughput within a compactfootprint.

With appropriate baskets, a lab techniciancan load up to 66 narrow-necked flasks, 96pipettes, or over 1200 test tubes in a singleload which results in an exceptional opti-mized turnaround of glassware.

Leading Machine FeaturesSuperior Cleaning

Superior Cleaning ResultsMiele washers employ a delicate balance offour factors to ensure exemplary cleaningresults. Through a careful balance of washtime, water temperature, water circulationand spray pattern, and specific cleaningagents, Miele systems provide effective andrepeatable wash results. Independent testresults demonstrate that Miele washers areeffective for removal of a wide range of sub-stances including metals, and do this withoutleaving trace levels of the substances ordetergent. Test result copies are availablefrom Miele.

Flow Meters & DI Rinse CyclesComplete elimination of residue is bestachieved by one or more heated DI waterrinse cycles. The G 7893 features a DI waterconnection with the ability to heat the waterup to 93°C. Typically 1-3 DI water rinses aresufficient, but the washer can be pro-grammed to utilize pure water for any or allsteps if desired. Miele combines this withflow meters for all incoming water types,which allows extremely precise filling andvarying of fill volume by program step. In thisway, wash programs are factory optimizedfor water conservation and can be furtheradjusted in the programming mode.

Standard Built-In Water SoftenerSoft water provides improved cleaningresults and is gentler on your washer. For this reason, the G 7893 is equipped with abuilt-in softener system for tap water. Thiseliminates scaling and enables your deter-gent to work at peak efficiency. The Mielesystem can be adjusted to compensate forthe hardness of your local water supply. Ifincoming water is already soft, the systemcan simply be deactivated. Once the systemis set to your water hardness, no program-ming is required. Simply add salt when the“recharge softener” light comes on and thewasher does the rest.

Advanced Filter SystemThe G 7893 features a 4 stage sump filter system to prevent debris from re-circulatingand distributing onto the wash load. Filters areupstream of the circulation and drain pumpsto protect and extend pump life. The four fil-ters include a surface filter, course filter, a finefilter and a micro-fine filter with a mesh size ofjust 0.25 mm. Filters can be easily removed forcleaning without the use of tools.

Additionally, the water inlet hoses supplied byMiele include mesh filters to capture any particulate material within your tap water priorto entering the machine.

4

G 7893 Key Features

HEPA-filtered forced-air drying

Fast, particulate free drying

Multitronic controller

Simple to operate

8 standard and 1 custom wash program

Adjustable wash/rinse temps up to 93º C

Audio-visual alarms

Automatic dispensing

Door-cup powder detergent

5 liter liquid neutralizer

Heated DI water rinsing

Multiple pure water rinses possible

Accepts pure water up to 18 megohm

Powerful 106 gpm circulation pump

Speed sensor to protect pumpin event of blockage

Soft start

Separate pump for drainage

Waterproof system

Automatic shut-off of incoming water

Dual NTC temperature sensors

For precise temperature control

Steam Condenser

Assists in fast drying

Validation ready

Test port

IQ/OQ documents available

Built to last

304/316 polished stainless steelchamber

304 stainless steel brushed finishedexterior cabinet

Wide array of interchangeable baskets

Injection cleaning and drying of narrow-necked items

Built-in water softener

Automatically softens tap water for better cleaning results

Adjustable for your water hardness

Four-stage filter system

Captures debris and protects pumps

Flow meters measure incoming water

For superior accuracy and efficiency

5

Leading Machine FeaturesSuperior Construction and Design

Stainless Steel ChamberMiele stainless steel wash chambers are builtto withstand the rigors of a demanding labo-ratory workplace. Because heated DI water,chemical residues, and cleaning agents canattack the wash cabinet itself, special caremust be taken to construct a chamber that isexceptionally corrosion-resistant.

With Miele, the chamber walls and ceiling areconstructed of 304 stainless steel, while thefloor and door (which take more of a beating)are constructed of high-grade 316 stainlesssteel for added corrosion-resistance.Surfaces are polished and seams are laserwelded from outside of the wash chamberminimizing spots where corrosion can occur.

With Miele, the wash chamber and entire cir-culation path is built to handle 18 megohmheated DI water, without risk of damage orcorrosion to the washer. Miele machines areknown to perform year after year without anysign of corrosion.

Water Delivery SystemThe G 7893 features a high-volume circula-tion pump that is rated at 106 gallons perminute. This high turnover rate of water iscombined with a low spray pressure to pro-vide effective cleaning action while remainingexceptionally gentle to prevent delicateglassware from being broken.

The Miele circulation pump ramps up tospeed slowly ensuring delicate items will notbe broken by a sudden blast of water. Thepump also includes a speed sensor. In theevent of improper pump speed or a completeblockage, the machine automatically shutsdown the pump and alerts the operator.These features ensure valid wash results andextend the pump life.

In addition, G 7893 also features an inde-pendent pump for drainage. A separate drainpump ensures that with each wash stepresidue is sent to the drain and not redistrib-uted onto the wash load, reducing the possi-bility of cross-contamination.

Standard Steam CondenserThe G 7893 is equipped with a steam condenser, which eliminates the need forexternal machine venting and keeps poten-tially hazardous vapors from venting into thelab during operation.

This system condenses water vapors andsends them down the drain. The steam condenser assists in providing fast dryingresults, ensures minimal heat output intoyour lab, and simplifies the installation of thewasher.

High Water TemperaturesIn general, hotter water provides more thorough cleaning and rinsing in a shortertime period. The G 7893 can heat wash andrinse water up to 93°C. Water temperaturescan be adjusted for each heated water fillproviding maximum wash flexibility. Miele’s6000 watts heat up the wash water at nearly4 times the rate of some other brands, ensur-ing that wash cycles will be completed in areasonable amount of time regardless oftemperature selected.

Water temperatures are closely monitored bydual NTC sensors to ensure valid and repeat-able wash results. If water temperatures areout of range an alarm condition will occur,since temperature is one of the critical fac-tors in ensuring analytically clean glassware.

6

Leading Machine FeaturesFor Safety and Ergonomics

Safety Devices

The G 7893 is designed to provide optimalresults with exceptional safety features,including:

Automatic door lock

Protects personnel from possiblescalding hot water from opening doorduring wash routine

No door vent

No potentially hazardous vapors arevented into your lab

Audio-visual alarms

To alert operator of any errorconditions

Dual temperature sensors

Protects against overheating

Waterproof system

Protects your lab from flooding

Built-in backflow prevention

Assures no contaminated water backsup into washer or pure water system

Pump speed sensor

To protect against overheating

Drying cool-down step

Ensures glassware is safe-to-handle

Gentle cleaning action

Assures that glassware will not break

Color-coded dispensing system

Helps ensure detergents and acids arenot accidentally mixed up

Waterproof System to Protect Your LabThe Miele G 7893 is designed for years oftrouble-free performance, but in the unlikelyevent of a leakage, the machine is equippedwith a unique Waterproof System.

Should your G 7893 ever develop a leak, asafety device on the incoming water line willautomatically shut off the water supply, acti-vate the drain pump and alert the user.

Miele achieves this with double-wall waterinlet hoses and a solenoid device that isattached to the water inlet valve. Any leaksthat occur to the hoses or the washer willsend water to a drip pan located in the baseof the machine, which is equipped with afloat switch that becomes activated byincoming water.

The float switch will automatically send a sig-nal to the water supply to shut down thewater, and activate the drain pump. A faultsignal will also alert the operator to the prob-lem. The Miele waterproof system is one ofmany unique features that set it apart fromother brands.

The Strong and Silent TypeWhile the G 7893 will clean even your toughest lab residues from your glassware, itremains exceptionally quiet in the process.Washing at just 52.9 dBA, you will hardlynotice when the G 7893 is running, allowingyou to converse in the lab without distrac-tion. In fact, your casual conversation (atabout 65 dBA) will be substantially louderthan the G 7893 cleaning your glassware.

Multitronic ControllerSimplicity and Ease of Use

Self DiagnosticsWhile the Miele controller’s primary purposeis to be an easy interface for lab technicians,it also provides extensive information forthose concerned with validation and techni-cal service support.

All critical systems such as pumps, flowmeters, temperature sensors, air filters,water softening system, and liquid dis-pensers are monitored by the controller. Errorconditions are indicated by means of analpha-numeric code that appears on theLCD. Some examples of the 40 conditionsthat could cause an alarm are:

• The wash temperature is not achieved• No liquid chemicals are dispensed• Salt is needed for softener• Circulation pump is not rotating• HEPA filter requires changing• No water is entering washer• Heating out of acceptable range• Machine is not draining properly

By notifying you of specific machine condi-tions, you are assured of a valid wash routineand fast troubleshooting of mechanicalissues. In this way, you can identify the condition and take care of it as quickly aspossible.

Simple ControlThe Miele Multitronic control system is pow-erful yet easy to use, providing quick accessto all program functions and indicators. Torun the machine, the operator simply turnsthe machine on, selects the desired washprogram and presses the start button.

Through the expertise of the MieleApplication Laboratory, the G 7893 isequipped with a selection of eight standardcleaning programs to deftly handle a widerange of laboratory cleaning challenges.Wash programs developed specifically forlaboratory applications such as “Organica”and “Inorganica” have been field-proven inthousands of laboratories worldwide.

These standard wash routines are ideal forthe vast majority of cleaning applications.For added flexibility, the control system fea-tures the custom program slot to include awash routine with customized wash andrinse temperatures, or to add wash stepsand modified holding times. Should yourcleaning application require special atten-tion, our application specialists will work withyou to guarantee the best programming foryour specific needs.

Advanced CleaningProgram selection is accomplished through asingle, easy-to-use dial, enabling an operatorto use the machine even when wearing pro-tective gloves.

The Multitronic display and alert system hasbeen designed to provide clear and conciseindication of all machine actions. Thealphanumeric LCD can be toggled to displaywash program step, temperature, or timeelapsed.

At a glance, the wash step indicator clearlyshows what stage the program is currentlyin. The display also shows fault codes, alert-ing technicians of an impediment to the washperformance.

Completion of the wash program is indicatedboth on the display and acoustically with theincluded buzzer, helping alert staff when theglassware is ready. System malfunctionssuch as drain or fill errors, are signaled bothvisually, and audibly using the error faultlights and buzzer.

7

1 On/Off button2 Electronic door lock3 Alphanumeric LCD 4 Minute / Wash Step / ° C LED display5 Optional drying selector

6 Program selector button7 Program sequence indicator LEDs8 Error indicator LEDs9 Optical PC interface

10 Rotary selector dial

1 6 73 4 5 10

8

2 9

8

Wide Array of Baskets & InsertsMiele manufactures washers capable ofexpertly cleaning a vast assortment of glass-ware types and sizes. This flexibility can onlybe achieved by designing a wide array ofunique wash baskets and inserts.

This interchangeable basket system ensuresa precise match to your specific cleaningrequirements. And, thanks to Miele’s univer-sal design for undercounter wash basketsand inserts, a new basket will fit the new G7893 as precisely as it will a 20-year-oldmodel.

Miele undercounter washers feature injectioncleaning on both the top and bottom rack,providing excellent throughput, improvedloading ergonomics and a wide selection ofwash load possibilities. Interchangeableinjectors allow for easy replacement of olderinjectors ensuring the basket has many yearsof useful operation. Baskets are also avail-able that feature drying tubes, connectingthe wash basket to the drying paths in the G7893. The result is superior injection-dryingof narrow-necked items.

For further information on baskets andinserts, see the Miele catalog titled “WashBaskets and Machine Accessories” or justvisit labwashers.com.

neodisher™ DetergentsMiele offers a wide selection of neodisher™brand detergents, neutralizers, and additivesideal for all of your cleaning requirements.

For many laboratory applications an alkalinebased detergent dispensed during the washstep followed by a rinse that includes organ-ic acid will do the job without leavingresidues to interfere with research results.Yet Miele provides a wide array of cleaningagents including phosphate-free detergents,emulsifiers, defoaming agents and more.

The neodisher™ liquid and powder deter-gents have been tested and proven to yieldthe best results possible in your Miele criticalcleaning system. Miele provides an applica-tion chart recommending detergents accord-ing to your application to get maximumresults from your G 7893 glassware washer.

More information can be found in Miele’sbrochure titled “neodisher Cleaning Agents”or online at labwashers.com.

A Host of Accessory Items

Transfer CartMiele makes it easy and ergonomically safeto load glassware into the G 7893 with theadjustable Mielcar mobile cart. With 2shelves, lockable wheels and adjustableheight, this cart is a perfect accessory forefficient and safe loading of glassware intothe G 7893.

G 7895/1Pure Water SystemThe G 7895/1 connects to your tap waterand produces pure water for your glasswarewasher. A stainless steel canister and resinis included. The cabinet is designed to fitundercounter next to your G 7893 glasswarewasher for convenience and nice appear-ance.

Washer Base StandA stainless steel base raises the height ofyour washer by 12 inches, for free-standingapplications, making loading and unloadingmore ergonomic.

Liquid Detergent DispensingOptional for the G 7893 is an off-board liquiddetergent dispenser. Automatic liquid dis-pensing provides higher levels of accuracyand eliminates potential user error in the dis-pensing process. This automatic systemmeans your staff will spend less time han-dling detergents.

9

Environmental Friendliness

Durability Every Miele glassware washer is manufac-tured to last 15,000 operating hours andMiele maintains spare parts up to 15 yearsafter the end of serial production of all wash-er models.

Packaging ResponsiblyFrom 1996 to 2005, Miele has reduced totalconsumption of packaging materials fortransport and sales by 19.8% despite anincrease in production of 53.2%.

Low Chemical UsageMiele's use of powerful circulation pumps,high water temperature and low water levelsmeans that less detergent and acid isrequired to get your glassware clean. Thisnot only lowers your consumable costs, it isalso a more “green” way to handle your labglassware washing.

Minimal Water ConsumptionThe Miele G 7893 is designed for effectivecleaning while at the same time is extremelyefficient. Because the washer utilizes flowmeters, incoming water fills can be varied involume and thus optimized. By way of com-parison, a typical wash program in a Mieleunit would use approximately 31% lesswater than that same program in anotherbrand.

Electrical EfficiencyMiele washers are designed to heat water upquickly and efficiently. Because less water is used, less heating time is required.Additionally, Miele units are thoroughly insulated to minimize heat and noise output.This means lower burden on your buildingHVAC system and on your lab.

Miele Manufactures ResponsiblyMiele consistently engineers products to beenergy efficient and have the smallest possi-ble environmental impact. This is achievedthrough the use of leading efficient manufac-turing techniques, machine constructionfrom easily recyclable materials, and thedrive to produce the cleanest operating,most efficient machines on the market today.

Miele’s production facilities have earned theinternational recognized DIN EN ISO 14001Certification for environmental managementpractices.

Machine ConstructionMiele manufactures washers that are con-structed of 90% metal. This propels Mielemachines to perform during their duty cycleand well beyond. Miele also uses minimalplastic components - each of which is clear-ly marked to facilitate recycling at the end ofits life cycle. And cabinets can easily be dis-assembled at the end of machine life forrecycling.

10

Exceptional Service

The Exclusive Application LaboratoryDrawing on a library of knowledge constructedover 100 years through cleaning innovationand expertise, Miele provides world-classapplication assistance and consultation. A keycomponent of this is the exclusive MieleApplication Laboratory, housed in New Jersey,with a sister lab in Germany.

Through these active Application Labs, Mieleconstantly surveys the horizon for uniquecleaning challenges. This ensures you a trulycompetent and uniquely tailored cleaningsystem.

Miele will also guide you, through testing, tothe proper basket system. Whether cleaningnarrow-necked Erlenmeyer flasks containingsolvents on an injection insert, orthopedicknee implants covered in titanium dust in theproper wash rack, or loose stainless steelgears coated in cutting oils in a fine meshbasket, you are ensured consistent results.

Technical Service SupportPlace your trust in Miele, and you are incor-porating an industry-leading cleaning systeminto your facility. A network of dedicated and highly specialized Miele ProfessionalTechnical Service personnel guarantees thaton-site assistance is close at hand.

To ensure a robust operating life, Miele pro-duces spare parts for at least 15 years fromthe discontinuation of series production forevery model. Coupled with industry-leadingengineering, you have a rock-solid, reliablecleaning solution.

Miele sets the standard in terms of knowl-edge, application support, and training.Beyond comprehensive machine service,Miele Professional Technical Service alsoexcels in installation and application-relatedissues, supplying you with the flexibilityneeded to deftly handle evolving goals andapplication issues.

Miele Preventive Maintenance In addition to your comprehensive warrantyprovided with the washer, Miele offers threepreventative maintenance plans to keep your machine running at peak performanceand to keep downtime to an absolute minimum. For further information contact the Miele Technical Service Department at800-991-9380.

Validation ServicesFeaturing the Multitronic controller, standardRS 232 connection, multiple sensors, auto-matic fault indication, and a validation testport, the G 7893 is ideal for facilities requiringmachine validation.

Miele validation services include extensiveMiele-developed IQ/OQ documentation andfully trained validation technicians who canexecute the validation. Miele technicians willwork closely with you in signing off on thevalidation documents and demonstratingthat the washer is installed and operatingaccording to specification.

Miele technicians utilize properly calibratedtools and know the Miele washers inside andout. This ensures a thorough yet fast valida-tion so you can get up and running quickly.

Miele provides convenient set pricing for validation work to eliminate cost concernscommonly associated with hourly billing byindependent validation consultants.

In short, Miele can provide turn-key IQ/OQvalidation of your washers for a reasonable,set price.

11

Machine Miele G 7893

Control Unit

Multitronic: Multitronic control system with programmable holding time and temperatures, standard RS 232 for

connection to printer or PC, and simple alphanumeric LCD screen

Standard: 8 standard wash programs with utility programs

Custom: 1 available space for a custom wash program to be created and stored

Temperatures

Wash: Freely adjustable up to 93° C

Final Rinse: Freely adjustable up to 93° C

Cleaning Mechanism

Rotary: Dual spray arms located at the top and bottom of chamber, third spray arm on upper basket

Direct Injection: Upper, lower, and dual injection baskets available

Drying Integrated HEPA-filtered forced-air drying system w/freely adjustable time & temp settings w/cool-down step

Temp adj: 122 - 210º F ( 50 - 99º C) 1º increments; time adj.: 1 - 99 min., 1 minute increments

Water Softener Built-in softener with easily programmed water hardness control

Steam Condenser Included; no external venting required

Detergent & Neutralizer Dispensing

Detergent: Standard powder door cup dispenser; optional liquid detergent dispensing

Neutralizer: 1 Peristaltic-type liquid neutralizer dispenser standard, 5L container stored externally from machine

Optional: 1 Peristaltic-type dosing connection for 5L or 10L containers optional, stored externally from machine

Main Circulation Pump

Circulation: 106 gal/min (400 l/min)

Pump includes sensor to protect against overheating

Cabinet and Chamber Construction

Exterior: Brush finish type 304 stainless steel top, front, sides and bottom

Interior: Type 304 stainless steel chamber sides, back and top

Type 316 polished stainless steel chamber floor and door

Waterproof System Automatically shuts off incoming water at source in event of leakage

Plumbing Connections

Tap (3 connections, hoses included): a) Hot water for wash cycles: One 1/2” ID pressure hose, 5’ 7” long with 3/4” hose thread

Input pressure: 10 - 147 PSI (recommended 25 - 60 PSI), min. flow rate of 2.5 gal/min (10.5 l/min)

Max incoming water temperature: 158° F (70° C)

b, c) Cold water for wash cycles & steam condenser: Two 1/2” ID pressure hoses, 5’ 7” long w/ 3/4” hose thread

Input pressure: 10 - 147 PSI (recommended 25 - 60 PSI), min. flow rate of 2.5 gal/min (10.5 l/min)

Max incoming water temperature: 68° F (20° C)

DI (1 connection, hose included): d) DI water for rinse cycles: One 1/2” ID pressure hose, 5’ 7” long with 3/4” hose thread

Input pressure: 25 - 145 PSI; if DI system is less than 25 PSI, a pump kit is recommended

Max incoming water temperature: 158° F (70° C)capable of accepting pure water up to 18 megohm

Drain Connections

Drain (2 connections, hoses included): Two 7/8” ID flexible drain hoses, 4’ 11” long; max drain height = 3’. Max drain length = 13’

Recommended connection to separate standpipe

Flow Rate: Maximum amount of water a drain needs to accept would be both numbers at the same time: 3.5 gal/min

2.5 gal/min (10.5 l/min) for chamber fill

1 gal/min (4 l/min) for steam condenser fill

Electrical Requirements 3 AC 208 V, 60 Hz, 3 x 20 Amps, 6.0kW total load

Optional Conversion: 1 AC 208 V, 60 Hz, 2 x 30 Amps, 6.0kW total load (Must specify at time of order)Unit is equipped with a 5’11”, 12/4 AWG unterminated power cord

Noise Level 52.9 dBA average noise level for a cycle including drying (measured 1m from front)

Dimensions

Exterior: 32.3” - 33.5” H x 23.6” W x 23.7” D (Height variation due to adjustable leveling feet and removable lid.)

Interior (Chamber): 19.7” H x 21.1” W x 19.7” D

Laboratory Glassware WashersTechnical Data

12 B999735 08/08©2008 Miele, Inc.

Miele Professional9 Independence WayPrinceton, NJ 08540& 800.991.9380

609.419.4241labwasher.com

Miele Limited161 Four Valley Drive Vaughan, ON L4K 4 V8Canada& 800.643-5381

905.532.2290miele.ca

Miele S.A. de C.V.Av. Santa Fe 170, German Centre: 0-4-2Col. Lomas de Santa Fe C.p. 01210.Mexico, D.F.& (+5255) - 8503 9870 Al 73

(+5255) - 8503 9874miele-professional.com.mx

Every effort has been made to ensure thatthe information given in this brochure iscorrect at the time of printing. However,due to continuous product improvement,Miele reserves the right to make changesto products and technical data withoutprior notice.