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Operating manual DÜRR X-RAY film processor XR25

1995/04

9000- 600- 04

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CONTENTS1. Safety advice .......................................... 51

1.1 Electrical safety advice ................... 511.2 General information ......................... 51

2. Scope of XR 25 ...................................... 523. Model review .......................................... 52

3.1 The whole programme at a glance .. 524. Operation ............................................... 535. Changing of chemicals ......................... 54

5.1 Cleaning the roller sets .................... 545.2 Cleaning the bath ............................ 555.3 Before draining the chemicals ........ 565.4 Draining the chemicals .................... 565.5 Cleaning the tanks ........................... 575.6 Filling up with chemicals ................. 585.7 Inserting roller sets .......................... 585.8 Putting on lid .................................... 585.9 Switching on XR25 for operation ..... 58

6. Daylight attachment .............................. 597. Film storage ........................................... 598. Surgery breaks ...................................... 609. Fault finding info . ................................. 61

1. SAFETY ADVICE1.1 Electrical safety adviceWork on electrical apparatus must only becarried out by qualified electricians (VBG 4)or through our trained Service Technicians.With the combination of equipment, as wellas with electrical repairs, the relevant safetyand check regulations must be observed.(VDE 0100, or else, IEC 364, 0105 pt.1, 0701,EN603351, VBG4, in other countries therelevant regulations such as IEC, CEE mustbe complied with). For repairs only useoriginal parts otherwise the guarantee andtest certification will be invalidated.

1.2 General adviceIn the BRD, as well as some other countries,used x-ray chemicals are regarded as specialwaste and must be collected and disposed ofseparately.

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3. MODEL SURVEYXR25 X-ray film processor

Model: 1702-01 (230V)1702-02 (110V)1702-03 (110V, variable processingtime)

3.1 The whole programme at aglance

Please open up left fold-in page!

Pos./Description Order n.

((1) XR25 X-ray film processor

230V, 50Hz .....................................1702-01

or

XR25 X-ray film processor 110V, 50-60Hz ............................................... 1702-02

or

XR25 X-ray film processor 110V, 50-60Hz(variable) ........................................1702-03

(2) Darkroom light ...................... 1482-000-00

(3) *Collecting containerfor Developer ........................ 1700-062-00

Collecting containerfor Fixer ................................. 1700-061-00

(4)* Storage container for Developer ....................... 1700-060-00

Storage containerfor Fixer ................................. 1700-070-00

(5) Daylight attachment DL24with filter pane ...................... 1700-910-00

Darkroom attachmentDA 24 ..................................... 1700-930-00

suitable for commonly used dental filmse.g. 2x3 up to 18x24 or 15x30 cm films

(6) Daylight attachment DL26with filter pane ...................... 1700-920-00

suitable for film sizes up to 24x30

* It is possible to order a Collection systemconsisting of:

1 Collecting container and

3 Storage containers

Collection system for Developer .. 1700-060-00

Collection system for Fixer .......... 1700-070-00

2. XR 25 OUTLINE• Automatic film developing of various film

sizes from 2x3 to max. 24x30 cm.

• A fresh mix of chemicals lasts approx. 3weeks based on a usage rate of 10 intra-oraland 3 panorama films per day. Thisstatement only refers to Durr Automat XRChemicals.

• Films can be fed in continuously.

• The run through time is approx. 6 mins. Withmodel 1702-03 (variable) it is between3-6 mins.

• The transport of films in processing is viaroller sets.

• In the Processor the developer and fixersolutions are warmed and kept to a constanttemperature within an accepted tolerancerange. The warm-up phase is approx 20mins. depending upon ambient temperature.

• If the XR 25 is installed in a darkroom, nodaylight attachment is required.

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XR25

Film-Transport

A B C D G

DÜRRDENTAL

4. OPERATIONMORNING: Open water tapEVENING: Close water tapNever let machine run when dry andnever without D/F roller in situ. Pull outpower plug on emptied machine.

Morning

• Open water tap• Mains switch (G) ON

Warming up phase begins (approx,20mins.)

Yellow indicator light (D) shinesReady for use

The correct processing temperature(28°C) is reached as soon as the greenindicator (C) lights up.

Film transport

• Film transport switch (A) ONRed light indicator (B) lights up

Advice: Insert DURR cleaningfilm, order no.1410-007-00- before starting the day’sprocessing by feeding in film at thefilm entrance.

• Feed in film at film entrance.Advice: Always feed in films straight and do

not have them overlapping, to avoidbending or blocking the transportation.

• When the last film in a sequence hasbeen processed, switch OFF transportswitch (A).Red light (B) goes out.

(A) Film transport switch ON/OFF(B) Film transport ON

RED indicator lights up(C) Ready for use

Green indicator lights up(D) Warm up phase

Yellow indicator lights up(G) Mains switch ON/OFF

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5. CHANGING CHEMICALSChemicals should be changed every 3weeks.Advice: The 3 weekly chemical change

specifically refers to:

a) The use of „DURR Automat XRchemicals“.

b) A daily max. film throughput of 10intra-oral and 3 panoral films.

In the BRD, as well as some othercountries, used x-ray chemicals areregarded as special waste andmust be collected and disposed ofseparately. We recommend the useof a DURR Collection & Storagesystem, see left fold-in page (3) and(4).

5.1 Cleaning the roller setsAdvice: Any hard particle deposits can

safely and easily be removed withthe special DURR Spray CleanerWR 200 (P/N CCB800C55..). ForCleaning the roller racks periodically(3-6 mos) please use DURRCleaning Bath set (P/N 1700-007-00).

Left and right fold-in pages:

• Mains switch (G) off, see fig. 1

• Pull out mains plug.

• Lift off lid (7) and put to one side.

• Open all latches (25) and catches (24),see right fold-in page.

• Remove guide plate (8) from dryer set.

• Tilt dryer set (23) backwards and then lift out.

• Remove water roller set (26) and filmentrance set (28).

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• Remove both bath covers (9) (only on model1702-03 variable) from the developer andfixer bath, let drip off and then lay aside.

• Take out Developer/Fixer roller set (27).Firstly, lift the roller set vertically with bothhands, then carefully pour the remainder ofthe chemicals into the baths over the frontside of the roller set.

• Clean all roller sets under warm water(approx.40°C).

When cleaning the roller sets use thecorrect coloured sponge.Fixer - redDeveloper - blackTo disregard this advice could causecontamination of fresh chemicals.

5.2 Cleaning the bath• Lift bath (11) with both hands. Pour remaining

chemicals back into the tanks of the XR25.

• Rinse empty bath with warm water using theappropriate sponges provided.

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5.3 Prior to draining the chemicalsPlease observe the following:

If collection vessels (3) are present,check whether they are empty.Otherwise empty the chemicals fromthem (4).To avoid overflow it is important that thevessels (3) are previously emptied.Sobald die Chemiekalien vom Entwickl-ungsgerät abgelassen werden, fließensie in die Auffangbehälter.

5.4 Draining the chemicals• Unscrew the red and black plugs (29).

With collection vessels (3) in position, theused chemicals flow into them.

• Decant the collected and used chemicalsfrom the collection vessel (3) into the storagecontainers (4).

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5.5 Cleaning the tanks• With the appropriate wet sponge, wipe both

Tanks (13)(Developer-black, Fixer-red).

• Screw in red and black plugs (29), see fig.8.

• Fill both tanks up to the mark (14) with warmwater (approx.40°C).

• Insert Developer/Fixer roller set, close latchesand catches (24), see right fold-in page.

Never let Processor run when dry.If there are no chemicals or water in thetanks and the mains switch is activated,this can lead to a technical defect.

If the Developer/Fixer roller set is notinserted, the water will spurt upwardsas the conduit for the solution is not inplace.

• Replace lid (7) again, see fig.2.

• Insert mains plug.

• Mains switch (G) ON, see p. 5.

• Film transport switch (A) ON, let XR25 run forapprox. 10 mins. The remaining chemicalsare removed from the hoses and circulationpump.

• Mains switch (G) OFF

• Pull out mains plug.

• Remove lid (7).

• Take out developer/fixer roller set (27), seefig.5.

• Unscrew red and black plugs (29). The waterwill flow into the empty collection vessels (3).

• Empty vessels (3) again.

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EEEEEFFFFF

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5.6 Filling with chemicals

• Screw in red and black plugs (29), see rightfold-in page.

• Insert separating plate (13) between Fixertank „F“ and Developer tank „E“, black sidetowards developer, red side towards fixer.

1.Filling up tank F-fixer (red):

• Pour in large red bottle A and top up withcold water to the lower mark (14).

• Now pour in small red bottle B and top upwith cold water to the upper mark (15).

2.Filling up tank E-developer (black):

• Pour in large black bottle A and top up withcold water to the lower mark (16).

• Now pour in small black bottle B and top upwith cold water to the upper mark (17).

• Take out separating plate (13), clean it andstore it.

• Replace bath (11), see fig.6.

5.7 Insert roller setssee right fold-in page and fig.14.

• Firstly, lift all latches (25) ready to receiveroller sets.

• Insert roller sets. Secure all latches (25) andcatches (24).

5.8 Replace lid

see fig.2 (7).

The lid should fit easily. If not, checkthat all catches (24) and latches (25)are properly closed.

5.9 Making XR25 ready for use

• Insert mains plug

• Power switch (G) ON, see p.5.

Yellow indicator (D) lights up, warm up phasebegins (approx.20mins.) As soon as thegreen indicator (C) lights up, the correcttemperature has been reached and the XR25is ready for use.

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6. DAYLIGHT ATTACHMENTIf no darkroom is present, two daylightattachments, DL24 und DL26, are available tochoose from, see left fold-in page, fig.(5) and(6). The order no. as well as the recommendedmax. film size for each is on p.4 under pt. 3.1.

„The whole programme at a glance“ can beseen. For easier handling of wrapped intra-oralfilms, the lid (18) can be lifted whilst the filterpane (19) remains closed.

When processing thin coated (Extra-oral) RP films, the lid must bedefinitely closed. Otherwise the filmwill be pre-exposed.

When necessary, individual elements of thedaylight attachment can be altered. Throughthis, the arm sleeves (20) can be adjusted tosuit individual requirements.

7. FILM STORAGEIn the film compartment (21) which is situatedin the daylight attachment, a max. of 10extraoral films can be stored.

When storing films in the compartment it isimportant to observe the following:

When using the film storagecompartment always use up the filmsbefore refilling. This will prevent filmsbeing stored too long which, ifignored, will cause ‘veiling`of thefilms.

• Films 12x30, 13x18 and 15x30 place in filmholder (22).- Hang film holder in storage compartment- Lay films in film holder.

• Films 24x30 and 24x18 do not require the filmholder- Lay films directly into film compartment- The 24x18 films are stood upright in the filmcompartment.

Close film compartment (21) each timeafter taking out a film. If the filmstorage area is not closed there isalways the danger of exposing thefilms whenever the lid is lifted.

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8. SURGERY BREAKSThe max. lifespan of the chemicals in the tanksis 4 weeks. If this period is exceeded during aSurgery break,e.g. holidays, the chemicalsshould be drained beforehand. The tanks androller sets cleaned with warm water (approx.40°C) and then left standing empty. Theprocedure as under pt.5 „CHANGING THECHEMICALS“.

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9. FAULT FINDING INFO.Possible causesCondition Remedy

1. Film too light

2. Films toodark

3. Yellow/Greenveiling on thefilm

4. Dark veilingon films

5. Increasedbackgroundveiling on thefilm

6. Brownishveiling on thefilm

• Developer temperature toolow

• X-ray exposure time too short

• Developer solution exhausted

• Developer temperature toohigh

• X-ray exposure time too long

• Film not properly fixed

• Light getting into darkroom,e.g. through keyhole

• Darkroom light wronglypositioned

• Film has been affected byProcessor control lights

• Lid of daylight attachment notproperly closed

• Films out of date

• Film falsch gelagert.

• Film not properly washed

Set temperature to 28°C

If possible, longer exposure time

Drain chemicals and mix fresh solutions.

Set temperature to 28°C

Shorten x-ray exposure time

Test whether Fixer solution is OK: Swishfilm to and fro for approx. 40 secs. If thefilm is transparent, the fixer is fine.Should veiling persist: Drain chemicalsand mix fresh ones.

Check darkroom for light leakage andseal off source.

Only indirect light allowed

Check all control lights and if necessarydim them

When inserting extraoral and panoralfilms the cover of the filter pane must beclosed.As films are light sensitive, thelid must be properly closed.

Check sell-by date

Store films in a cool place. Films shouldnot be kept near the x-ray machine.(Scattered radiation)

Open water tap.Safety switch in water bath hasswitched off water inlet valve - Checkwater drain..

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