Bungard DL 500 User manual

DL500-Manuel-E Page 1 / 20
DL 500 Conveyorized Etching and Developing Machine
Translation of the original instructions
Content
Leaflet................................................................2
Technical Data...................................................4
EG-Declaration of Conformity..........................4
Intended Use of Machine...................................5
Safety instr ctions.............................................5
Composition.......................................................7
Set p..................................................................8
Operating.........................................................10
Spare part list...................................................14
Amendment 1 Closed-Loop Rinsing Unit........18
Amendment 2 Stripper.....................................18
G arantee.........................................................19
Disclaimer of Warranty....................................19
Copyright.........................................................20
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
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DL500-Manuel-E Page 2 / 20
Leaflet
The DL 500 is a double sided conveyorised spray etching achine with integrated rinsing zone. This a -
chine is easy to aintain and fits perfectly to a odern PCB laboratory. The axi u capacity within one
hour is 10 ². Designed for being used for laboratory purposes, there are lots of different applications
(e.g. spray developing of tenting or solder ask) and options available. Of course the achine can be
odified according to your needs.
Features
•Working width 510
•Stepless adjustable conveyor speed 0 - 1.5 / in.
•Joint free belt drive
•PCB is fir ly secured during etch process by upper and lower transport rollers
•Powerful etchant pu p (200 l/ in)
•Double sided etching with 4 x 14 flat jet nozzles. Due to special nozzle pattern, there are 6 rows of
nozzles for each side !!
•Adjustable spray pressure. Upper and lower spray pressure can be regulated separately
•Ther ostat with digital read out and self-safe overheat cut-off
•Integrated rinse zone. Optional fresh water rinse with solenoid valve or recycle water tank
•Drying by squeezing rollers with tissue
•Sturdy stand alone construction fro PVC and Titaniu
•Transparent top with security switch
•Line definition down to 35 µ lines and spaces on 18 µ copper
•1000W quartz heater
•Maintenance free design, just nor al cleaning/refill
•Easy dis-asse bly and full access to all inner parts without special tools
•suitable for all regular etching agents. We reco end to use ferric-chloride. Please pay attention
to the special features of each etchant (crystallization of per-sulfates and a oniu , exother ic
reactions while etching). For alkaline etching, achine ust be odified.
Variants:
•Variant # 1 Spray Developing Machine
•The DL 500 can be used as a spray developing achine for negative and
positive etch resist or solder ask without odifications. Si ply change the
edia!
•Variant # 2 Spray Etching Machine
standard variant
•Variant # 3 : Spray Stripping Machine
•This achine is equipped with an additional filter basket at the front side of
the achine to re ove residues of tenting or solder ask fro the stripping
liquid.
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DL500-Manuel-E Page 3 / 20
Options:
Option # 1: Recycle Rinsing Tank
recycled rinsing tank with agnetic centrifugal pu p instead of fresh water. Saves
water costs. With a cock drain valve the used rinsing water can be used to co -
pensate evaporation losses or to ake up new etching liquid. Waste water free rins-
ing technique. The agnetic valve fro the standard version is here obsolete. The
tank fits underneath the achine body of DL 500. For at: 200x600x700 (Bx-
HxT).
Option # 2: Conveyorise Rinsing Unit
a) conveyorised rinsing unit, stand alone version with adjustable conveyor speed, in-
tegrated agnetic valve for fresh water inlet (controlled by DL 500), squeeze drying
roller. Transport width and height sa e as DL 500. For at: 450 x 940 x 620
(BxHxT)
b) as above but second stage cascade rinse (in co bination with recycled rinse tank
and agnetic centrifugal pu p), 3 way cock valve to bypass rinsing water e.g. to wa-
ter treat ent unit IONEX. For at: 450 x 940 x 620 (BxHxT)
Option # 3: Inspection Table
Control zone in for of a roller table (not conveyorised). This roller table can be
ounted between two DL 500 (e.g. Developer and Etcher), between DL 500 and
rinsing unit or as a single exit table. For at ca. 620x530x50 (BxHxT)
Option # 4: Pro uction Line
3 DL 500 and the rinsing unit can be connected to a s all production line (Develop-
ing – Etching – Stripping - Cleaning) coupled together with inspection tables. Of
course other variants are possible as well.
Option # 5 DL 500 Vario with separately adjustable spray pressure for botto and
top side.
For physical reasons the etching result on the botto is better than on the top. For
this reason, ay be useful to adapt the spray pressure. Unlike any co petitors, the
board in the etch cha ber is securely fixed by upper and lower transport rollers so
that the spray pressure for the top can be co pletely turned off without the board
stands by the lower spray pressure. This Version is standard since 2015!
Option # 6: Cooler
So e etching agents as well as other che icals tend to
exother ic reactions and need to be cooled during the
treat ent process. For this purpose we offer a special
cooler for the DL 500. The Cooler consists of a recyc-
ling rinsing tank with cooling coils for the etching liquid. With a cock valve the etching
agent is adjustable bypassed through the cooler.
Option #8: Filter unit
On request you can equip your DL 500 with one or two 10 " filter units to re ove
residues fro the etching process. You can easily adjust the filter throughput via
cock valve. On the picture you can see a filter unit together with an exit table.
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DL500-Manuel-E Page 4 / 20
Technical Data
Electrical connection: 220 V~, 50 Hz, ca. 1.5 kW
Dimensions ca. 110 X 100 x 60 c (BxHxT)
Max Boar Size: 510 x endless
Min. Boar Size: 100 x 160
Fill Quantity: ca. 55 l Etching Agent
Weight: ca. 100 kg
Material: PVC, PP, Titan
Conveyor spee : Stepless adjustable 0 - 1.5 / in
Pump: Centrifugal pu p delivery rate ca. 200 l/ in, spray pressure
stepless adjustable by valve
Heating: 1000W Quarz glow bar
Spee of Etching: ca. 35µ in 90 s
Water connections: Inlet: ¾ inch thread
Outlet: Spout D30 (Closed Loop Rinsing Unit reco ended)
Technical changes reserved.
EG-Declaration of Conformity
EG-Konformitätserklärung/Declaration of Conformity
Hersteller / Supplier: Bungard Elektronik G bH & Co. KG
Rilkestraße 1
51570 Windeck Ger any
Bevoll ächtigte Person für die Zusa enstellung
der technischen Unterlagen:
Person in charge
Jürgen Bungard, Geschäftsführer /general director
Rilkestraße 1
51570 Windeck Ger any
Produkt: Durchlaufätz- und -entwickleranlage DL500
Hier it erklären wir, dass die oben beschriebenen Maschinen allen einschlägigen Besti ungen der Maschinen-
richtlinie 2006/42/EG entspricht.
Die oben genannte Maschine erfüllt die Anforderungen der nachfolgend genannten Richtlinien und Nor en:
We hereby declare that the achines described above co plies with all relevant provisions of the Machinery Direct-
ive 2006/42/EC.
The above achine eets the require ents of the following guidelines and standards:
Maschinenrichtlinie 2006/42/EG / Machinery Directive 2006/42/EC
EMV-Richtlinie 2014/30/EG / EMC Directive 2014/10830EC
Nie erspannungsrichtlinie 2014/35/EG / Low Voltage Directive 2014/35/EC
DIN EN 60204-1 Sicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 1: Allge eine Anfor-
derungen / Safety of achinery - Electrical equip ent of achines - Part 1: General require ents
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DL500-Manuel-E Page 5 / 20
DIN EN ISO 14121-1 Sicherheit von Maschinen - Risikobeurteilung - Teil 1: Leitsätze / Safety of achinery - Risk
assess ent - Part 1: Principles
DIN EN ISO 12100-1 Sicherheit von Maschinen - Allge eine Gestaltungsleitsätze, Risikobeurteilung und Risiko-
inderung / Safety of achinery - Basic concepts, risk assess ent and risk reduction
DIN EN 55014-1 2012-05 Elektro agnetische Verträglichkeit, Anforderungen an Haushaltsgeräte, Elektrow-
erkzeuge und ähnliche Elektrogeräte, Teil 1: Störaussendung / Electro agnetic co patibility Require ents for
household appliances, electric tools and si ilar electrical appliances Part 1: E ission
DIN EN 55014-2-2009-06 Elektro agnetische Verträglichkeit - Anforderungen an Haushaltgeräte, Elektro-
werkzeuge und ähnliche Geräte - Teil 2: Störfestigkeit - / Electro agnetic co patibility - Require ents for
household appliances, electric tools and si ilar apparatus - Part 2: I unity
Nie erspannungsrichtlinie / Low Voltage Directive 2014/35/EG
Maschinenrichtlinie / Machinery Directive 2006/42/EG/37/EG
Windeck, 10.1.2016
Jürgen Bungard Geschäftsführer
Intended Use of Machine
Aqueous-alkaline or acid etching of printed circuit boards or plates.
Developing of positive or negative-working, aqueous-alkaline processable photoresists or la inates (add
defoa ers if needed).
Alkaline resist stripping (additional filtration unit required).
All other applications require our written consent, or are perfor ed co pletely on the operator's own risk.
Safety instructions
General
Please read the following instructions carefully and pay particular attention to infor ation on operating
safety and set up.
Keep these instructions at a safe place. It contains infor ation which also refer for later aintenance and
cleaning.
The achines are intended for che ical-physical treat ent of printed circuit boards.
The achines are not designed to be e bedded or interconnected with other achines or syste s. They
ay only be used in specially equipped roo s and be operated only by qualified staff. Children and pets
are to be kept away!
Transport
Only use suitable lifting and transport equip ent such as forklifts or pallet lifts. Secure the achine
against sliding / tilting.
Place of installation
The achine ust be standing level and around the achine there has to be sufficient space for opera-
tion and aintenance work (approx 1 on all sides). To prevent the penetration of che icals into the
ground, set up the achine either in a roo with solid, waterproof and che ical resistant floor (no tiles nor
concrete!) or in a che ical resistant waterproof collection tray which can take the whole filling volu e
(safety tray available as an option).
Electricity
The achine is ade fro certified parts according to standard practice for electrical safety. This does
not relieve the user of his duty of care when handling electrically powered devices.
The I/O-labelled red ain switch disconnects the achine fro the power supply. We presuppose that the
safety fuses of the circuit and the residual current circuit are provided by the building's power supply.
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DL500-Manuel-E Page 6 / 20
After co pletion of the work, the ain switch should always be turned off.
Before all aintenance work on the achine (filling, e ptying, cleaning, etc.) turn off achine and pull the
plug.
The che icals used in the achines often have a high electrical conductivity. Any contact of the liquid
with live parts therefore constitutes a serious threat to electrical safety. In such a case, the achine ust
be i ediately disconnected fro the ains and the defect ust be eli inated i ediately and profes-
sionally. This applies correspondingly with leaked or spilled etchant.
Water connection
After work or prolonged interruption close the cock valve of the building water supply to prevent water
da age fro a possible leak in the hose.
Personal protection equipment
When handling corrosive che icals ake sure to wear protective clothing, gloves and face protection.
Observe the safety instructions of the anufacturer or the supplier.
Temperature
Switch on achine only when tanks are filled! The quartz glow bar ust be always sufficiently covered
with etching agent! Uncovere glow bar may cause estruction of machine! Fill the etching cha ber
up to 1 c under the cover of the ediu container.
The electronic ther ostat is protected against breakage and short circuit of the cable to the ther al
sensor. This does not relieve the operator fro the obligation, to onitor the te perature of the li-
quid. Exother ic che ical reactions ay under certain circu stances, which we cannot influence,
cause overheating of the etchant. The axi u operating te perature of the achine is 45 °C.
If the etchant is prepared by dissolving salts or ixing liquids, do that in any event outside of the
achine! Observe the safety instructions of the che ical supplier.
If you want to use liquids which ay react exother ic, take additional easures to prevent over-
heating. If, despite all precautions, overheating of the etchant occurs, the heater ust be switched
off first. The pu p however ust re ain switched on, so that the etchant is cooled by the circula-
tion.
Before draining the tanks, let the heater cool down for approx. 10 in, so the heaters will not get
da aged.
Working safety
The achine has a lid safety switch which stops the pu p circuit when opening the cover. Please
check the function regularly of the position switch.
There is a ball valve at the bypass of the tubing leading upward. Opening this ball valve while the
etching pu p is on will lead to exit of etchant. This is an unavoidable danger in case of any i prop-
er or unattended operations at the back of the achine. The you ay encounter by the closing the
ball valve, pull off the handle and store the handle separately.
Exhaust air
We reco end to install an exhaust above the achine for eventual etching stea s. This reco -
endation is however purely precautionary. Leakage of aggressive stea s could not be proven in
two independent investigations (water vapour escapes, the salts of the etching agent re ain in the
solution).
The achine possesses at the back of the rinsing co part ent a pipe socket, which can be con-
nected to the exhaust air syste of the building. The ventilating outlet is consciously not arranged at
the etching zone, in order to prevent that except stea s also liquid etching agent can arrive into the
exhaust air syste .
Environmental protection
Dispose used etchant according to your local regulations. Pay heed to the aterial safety data sheet
(MSDS) of your che icals.
Rinsing water
The legislation generally prohibits to exceed certain axi u concentrations and quantities of cop-
per (and other heavy etals) in the waste water (usually 0.5 g copper / liter of water). After etching
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DL500-Manuel-E Page 7 / 20
the boards should not be rinsed under running water and do not dispose used rinsing water into the
sewer! Operate the rinsing water only either in a closed loop rinse or treat the rinse water with a ion
exchanger. If you do not have an in-house water treat ent for the rinse water, we reco end our
waste water treat ent plant IONEX or AquaPur for this task.
We reco end to use the water in the closed loop rinsing zone(s) as long as possible.
Collect used rinsing water and reuse for set up new etchant. Dispose the surplus together with the
used etchant. Neutralization of the rinsing water or even the etchant can and should be left to a spe-
cialist!
Composition
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DL500-Manuel-E Page 8 / 20
The achine body is ade fro PVC. It is divided into
infeed-, etching-, rinsing- and outfeed-zone. The re ov-
able edia tank is located in the pedestal of the a-
chine.
The cover is ade fro grey and transparent PVC. It
carries housings to fix the re ovable partition walls.
The edia tank is easy to access and can be entirely re-
oved fro the achine. The top cover of the tank car-
ries the pu p. This is a sub ersion centrifugal pu p
which propels with highpressure the etching ediu to
the 4 anifolds, each of the equipped with 14 flat
spray nozzles. The liquid returns to the tank via 2 PVC
drain pipes of big dia eter. The tank carries a 1000 W
heater ele ent and the te perature sensor.
The conveyor syste is ade fro 13 pairs of PVC
covered rollers and of one infeed and outfeed roller at
each end of the achine. The squeegee rollers are
covered with a sponge cloth each. Using an endless
belt, the rollers are directly coupled to a gear otor.
The water access to the rinsing co part ent is con-
trolled by both a agnetic and a anual operated valve.
The agnetic valve opens only when the etching pu p
is operating. A circuit rinse or a downstrea rinsing wa-
ter treat ent are as an option available.
The control unit is ounted on top of the achine. To per it easy access fro each side of the achine,
it can be turned into al ost any position. The front panel carries illu inated switches for the ain supply,
pu p, conveyor and heating circuits as well as a potentio eter for conveyor speed adjust ent and the di-
gital-reed-out ther ostat.
Setup
Take over from the transport agent
After receiving and unpacking, check the achine for possible transport da ages. In case of trans -
port da age, please infor your insurance, the transport co pany and the anufacturer / supplier.
Transport to the place of installation
Only use suitable lifting and transport equip ent such as forklifts or pallet lifts.
Secure the achine against sliding / tilting.
The achine is fixed to the transport container or to the palette by plastic tapes.
Re ove all packing aterial and tapes fro the cover, the control unit and the e-
diu tank.
To avoid da age, do not ove the achine on the ground. With the help of at
least one other person, carry it to the desired location. The best possibility to
handle the achine is to hold it at the left and right side walls on each end.
Place of installation
The location ust fit the labour protection require ents for etching achines, i. e.
ventilation, sealed floor etc. It ust further offer power and water installation close-by.
The place ust be straight and even. It ust carry the entire botto of the achine (no palettes!). With
respect to an easy feeding and a good access also to the back side of the achine, there should be a free
area of about 2 x 2 .
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DL500-Manuel-E Page 9 / 20
Connections
Connect the overflow of freshwater rinse (PVC Spout D30/22) with your rinse water treat ent. Make a
connection to the fresh water inlet (Thread 3/4”). If you use a closed-loop rinsing tank, connect this tank as
well. If there: Connect the exhaust tube (D62/50) to your roo ventilation.
Control
Before connecting the achine to the power supply, please check:
The conveyor belt ust run parallel to the side walls of the achine. All upper rollers ust lay close on the
lower ones.
If the cover has been taken off the achine, the inter ediate walls and the cover ust be re ounted.
Take care to ount the cover in a way that it sits well all on the achine body and that the security switch
is closed.
Check if all fittings are well attached and if all appropriate valves are closed. If necessary, tighten the fit -
tings anually.
With respect to the built-in stoppers, ove the control unit to the desired position.
Electrical connection
Switch off all the switches on the front panel. Turn the adjust ent knobs of the conveyor belt and the
ther ostat to zero position. Connect the power plug to a splash water-protected wall socket. The a-
chine's power consu ption (with the heater running) is about 1.9 kW on 220 V, 50 Hz. We assu e that
an appropriate fuse has been installed to the in-house power circuit.
Now turn on the ain switch. It will be lit.
First Filling
As a check for tightness and function you should operate the achine first only with water. After success-
ful test run the water is replaced by etching agents. If the ediu container was de ounted for transport,
put it back into its position, bolt the connections of the two gutter-pipes and the tubing and connect the
plug contacts for ther ostat, heating staff and engine (plug are per utation i ple ented). You can give
the water through the opening in the cover (filling height is approx. 1 c under cover of the ediu con-
tainer).
Test Run
Referring to the description in chapter Operating, check the function of conveyor heater pump
rinse.
Pay special attention to the following topics:
Conveyor
The belt and the rollers ust ove in a steady and unifor way. At position 1 on the scale, the conveyor
ust just transport a board through the achine.
Pump
When running the pu p, have a close look on the fittings and the cover. No leaking should be obvious.
There are two ball valves in the ounting tubes fed by the pu p. These valves can be used to reduce
spray pressure, if necessary. A very low pressure also per its to see if all nozzles are operating and spray
in the right direction. See chapter Cleaning an Maintenance for details on how to adjust the anifolds.
Heater
In the first test run, it is not necessary to wait for the water to heat up
co pletely. The ther ostat is adjusted during the final inspection at the
factory. It is therefore sufficient to check the control behavior at any te -
perature setting by adjusting the set value just above or below the dis-
played actual value and control if the LED turns on ( achine is heating)
or turns off (heater is switched off). You can change the set te perature
by pressing SET tow ti es at the ther ostat display and then adjust Set-
te perature with the arrow buttons. Press again SET -. the display shows the word "set" and will return
after a few seconds to the actual te perature).
If you open the cover of the hand hole of the ediu container the Quartz heater visible. In the heating
phase, the switch will light up at the control panel and the heating ele ent takes a orange-red color.
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DL500-Manuel-E Page 10 / 20
Rinse compartment
Check if there is sufficient, but not too uch water. Pressure is good if the lower jets al ost reach the
cover. See if the descent to the drain is sufficient. If not, the water floods the rinsing co part ent and
exits into the etching zone. Adjust ent of the water inlet is described in chapter Cleaning an Mainten-
ance.
Discharging
E pty now the achine co pletely and pull the power supply plug. In order to replace the filled in water
by etching agents, e pty the ediu container:
Fasten a short piece of hose to the ball valve of the ediu container, the other end of the hose should
end in a plastic bucket. Open the ball valve and let the air escape fro the hose. Hold the filled hose then
into the bucket. With this `principle of the co unicating tubes you can e pty the ediu container so
far, that you can ove the container fro its position without spilling and then e pty it co pletely. Do not
forget to loosen the fittings and the electrical connections before oving.
There is a ball valve at the bypass of the tubing leading upward. Opening this ball valve while the etching
pu p is on will lead to exit of etchant. This is an unavoidable danger in case of any i proper or unatten-
ded operations at the back of the achine. The you ay encounter by the closing the ball valve, pull off
the handle and store the handle separately.
Alternatively: e ptying the achine via the etching pu p: The ascending tubes in which the etchant is
transported under pressure to the nozzle anifolds, has a bypass with a ball valve. At the spout of this ball
valve you can put on a piece of hose. The other end of the hose ust end in an appropriate bucket. Turn
on the pu p and carefully open the ball valve of the bypass. The water will be drained into the bucket.
This way you can e pty the ediu container down to 1/3 of the content. The re aining ater you can
drain via the ball valve at the botto of the container.
The ball valve has a screw connection to the ascending tubes. Before starting the pu p check this screw
connection on tightness and retighten if necessary by hand.
Fill with etching agent
The achine can be filled alternatively through the hand hole of the ediu container or after re oving
the hood, fro above via the etching zone (in that case do not forget to fir ly close the tube fittings).
Make sure before filling that the drain cock of the ediu container is closed. This is the case, if the
handle stands perpendicularly to the sleeve. The correct filling level is about 1 c under the cover of the
ediu container with the pu p switched off. A too s all a ount of filling can lead to da ages and
ust be avoided. After so e operation refilling of etching agent can be necessary by the hand hole in the
cover of the ediu container. After you filled in the finished and cooled down etching agent and the pos-
sibly dis ounted parts are reasse bled the achine is ready for use.
Trouble
If there were proble s co ing up during this first test, which are not described in this anual, please
contact us i ediately.
Operating
Control Panel
All electric functions of the DL 500 are controlled fro the front panel of this unit (co pare Composition).
Fro the left to the right, there are: The switches for the ain supply, for the pu p otor, the heater and
the conveyor. Next is the button for speed control of the conveyor. All to the right, there is the ther ostat
unit.
The ain switch turns off all other switches and circuits. This per its an instant stop
Etching circuit
The second switch fro the left being turned on and the cover being closed, the etching pu p will start. It
propels the liquid to the nozzle-equipped anifolds. The flow capacity and the pressure can be set anu-
ally by a valve located in the liquid ounting pipe. The liquid returns to the tank via two fitting connected
PVC pipes.
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DL500-Manuel-E Page 11 / 20
The tank capacity is about 55 litres. The correct filling level is about 1 c below the tank cover plate. A too
little filling level will cause the pu p to suck air, which can be heard as a specific sound.
If the filling level should be lower than the pu p inlet level, the heater ele ent could run free. This would
ost certainly lead to a da age to the achine. It is though necessary to control the level periodically. To
fill up, switch the pu p off and add water or etching ediu until the liquid level is 1 c below the tank
cover.
Conveyor
The boards to be etched are inserted into the achine at it's right end, seen fro the front. Boards are put
onto the first roller and carefully oved forward until they are attached by the next roller pair. It ay be ne-
cessary to support very long boards anually until they have co pletely entered the achine.
If you did not install a trap table at the achine's left end, you ust take off the etched boards fro the
achine anually. Otherwise they ight fall down and get da aged. We offer inlet and outlet tables as
an option.
Speed can be varied using the button right to the conveyor switch. At a reading of 1 on the button scale,
the conveyor will run at it's ini u speed. Actual speed setting depends on te perature, saturation and
type of the etching ediu as well as on copper thickness and spray pressure. For fresh war ferric
chloride at about 45°C, a speed setting of about 3 will do.
It ight be a good idea to keep a once found setting for 35µ also if boards with 70µ copper are
etched: Just have the board pass the achine twice.
The speed adjust ent is at it's opti u if there are only very few rests of copper re aining on the board
at the o ent that it reaches the last roller pair in the etching co part ent. A board which was inco -
pletely etched ay be processed again at a high speed setting. A too little speed will cause severe under-
cut.
Heater
I portant: The heater circuit ay only be activated with the
tank filled!
The control switch being lit, the heater circuit is enabled. The
switch relates to the ther ostat located on the right. The
ther ostat first akes a self test and after so e seconds
the present te perature of the etching liquid is shown.
The te perature of the ther ostat is preset to 45°C. You
should only changes this value, if your etching liquid com-
pellingly requires another te perature. You can change the
value by pressing 2 ti es the SET-key. With the arrow-keys
you can ove up or down to the desired te perature. Press SET again. On
the display appears the word “Set” and above the display the orange “OUT”-
LED goes on. After so e seconds the present te perature of the liquid is
shown again.
The te perature setting depends on the type of etching ediu to be used.
For ferric chloride we suggest to set te perature to 45 °and for sodiu per-
sulfate to 40°C. For copper chloride or sulfate based edia, 30°C are reco -
ended. Ask your che istry dealer for details.
Although the thermostat range is up to 60°C, a temperature setting of
more than 50°C is not permitte . Please note that certain etching me ia
pro uce heat when use . In this case, the temperature setting must be
re uce in a vance. Do not fee the machine with boar s until it has
coole own. We supply a cooling tank as an option.
Rinse
The rinse co part ent can either be used with fresh water or, with an op-
tional tank and pu p, as a closed loop rinse.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [email protected]
Cooler
Closed-Loop rinsing Unit

DL500-Manuel-E Page 12 / 20
If you use the DL500 with fresh water rinse, you need to connect the achine with
a pressure resistant hose to the wall- ounted valve. In addition, the flow capacity
can be anually set by a valve located below the rinsing co part ent. Set the ball
valve approx. to ¾ open and then open the cock valve so uch, that the spray of
the lower anifold just reaches the height of the upper anifold.
Attention: A too high flow rate ight cause the water to ount in the co part ent
instead of passing into the drain!
When the etching pu p has stopped, the agnetic valve also interrupts the rinse.
When you have finished work, hclose the wall- ounted valve to prevent excessive
stress to the hose.
If the optional closed-loop rinse syste is installed, the valve below the rinse co -
part ent should always be fully opened. See a end ent for the closed loop rinse
and re arks in chapter Waste Water.
Cleaning and Maintenance
The achine requires al ost no aintenance. The ain service labour is the periodical exchange of the
etching ediu and a thorough cleaning of the achine. When doing such service, you ay easily check
the conveyor syste for wear or use.
Detailed infor ation as for changing the tooth belt, the adjust ent of the nozzle and the iassembly of
the pump, refer to the corresponding isassembly instructions. This is available fro us on request.
Cleaning
Except for the transparent cover, all PVC parts of the achine can be cleaned using liquid abrasive
products known fro the household. If ferric chloride was used with the achine, we reco end to use
our special stain re over RX3. A thorough rinsing of the appropriate parts is necessary after each clean-
ing process.
To clean the tank, re ove it fro the pedestal, as described above. To have better access, you ay re -
ove the heater ele ent by unscrewing it's fitting. If you use flowing water, be careful not to oisten elec-
tric parts. Re e ber your anti-pollution responsibility! The nozzles can be re oved fro the anifolds for
cleaning. Just rinse the and blow the out with co pressed air. The sponge cloths on the squeegee
rollers ust be treated carefully. Just wash the without rubbing the . You can wring the by rolling
the on a piece of carton. Da aged sponge cloths should be replaced by new ones. You ay have such
spare cloths together with a special adhesive fro us. The sifter of the suction zone of the otor can be
echanically cleaned when ounted.
Cleaning of the machine in use of FeCl3:
Equip ent:
Apron, eye protector, (Latex) gloves, 2 plastic scrapers, 2 plastic sponges, 2 buckets, paper cleaning
cloths, plastic foil, container fro plastic for used etching agent
Che icals:
Hydrochloric acid HCl technically, concentration approx. 15%, quantity approx.: DL500 55l, stain re over
RX3
Proceed:
Cut the plastic foil in the double size of the utility space of the achine. Put on protective clothing. Dis -
charge etching agents fro the achine into suitable container. Take up existing sludges with scraper
echanically and give it to the etching agent. Lift the achine and set it on the foil. If you do not have an
exhaust ove the achine to proper ventilated roo or outside.
Fill the achine with 15% HCl. Close the cover. Run the achine with heating switched on for several
hours. Repeat if necessary the cleaning run the next day.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [email protected]
Ball Valve for the
rinsing zone

DL500-Manuel-E Page 13 / 20
To Clean fro the outside give war water into a bucket. Add stain re over on a wet sponge and use it
like abrasive powder Let the paste act on the surface, if necessary oisten again with sponge. Repeat
this procedure, until the arks are faded. Particularly persistent deposits carefully dab with HCl. To clear
rinse thoroughly wipe of achine with a not dripping sponge and clean this sponge in a second bucket.
Discharge HCl fro the achine and store to re-use it again. Close drain valve. If the achine is not filled
again, wipe off the inside of the achine beginning fro the top and working your way down. Clean
sponge in second buck. Do not touch the uncleaned parts of the achines, wear long sleeved gloves if
necessary. Give the contents of the second bucket to the used up etching agent. Alternatively clean the in-
side by aking a test run with water.
Return the achine to its location. Exa ine whether the glow bare is intact (do not switch on, only visual
check.) If necessary re ove the electric case and pull back the rubber seal of the glow bare to check for
any penetrated liquid. In this case you have to exchange the glow bare. Fill the achine with water for a
test run and after that replace the water with fresh FeCl3.
The hydrochloric acid can be used later, in order to dissolve Sludge sedi ents in etching agent. Give HCl
in portions of approx. 0.5l to the dirtily brown etching agent and let the achine run briefly. Do this so long,
until the solution is to a large extent clear again. But: NEVER give Hydrochloric acid to fresh iron-III-chlor-
ide ! Dispose possible surplus of HCl with used etching agent.
This guidance represents only the funda ental procedure in standard situations. Mistake and change re-
served. Handling the che icals takes at one`s own risk. Regard safety regulations!
Against FeCl3 arks on clothes, s ooth and porous surfaces we supply a highly effective stain re over
on organic basis.
Drain the dirty rinse water fro floor drain of the rinsing zone. The waste laws de and econo ical hand-
ling of rinse water. We advise to collect the water fro the first rinse a) To co pensate evaporation
losses and b) for new FeCl3 solution! After discharging the water sedi ent re ains in the basins. Take
up echanically and give these it to the used up etching agent. Dispose surplus rinse water together with
the used up etching agent.
Motor protection:
we reco end to regularly inspect the the radial sealing shaft of the PVC-flange or to change this shaft
every second year. On request we supply a detailed instruction on how to change this ring.
Che ical drag out
It is in the nature of the application, that a s all a ount of etchant fro the etching zone is deported to
the rinsing zone via tooth belt and pcb.
By arranging the walls in a special way and fit the outlet rollers with absorbent cloths the che ical drag out
is reduced to a low level.
The following points affect the che ical drag out significantly:
Machine in balance: if the achine is not standing level, the liquid will flow over the plate towards the
lower part of the achine.
Board size: large bords drag out ore solution than s all boards, because the fluid can not drain quickly
to the sides.
Holes: undrilled boards drag out ore than drilled ones, where etchant can drain through the holes or
slots.
Curved boards: if you run curved boards through the achine with the curve showing down, the board will
a kind of channel for etchant or rinsing water. If a curve can not be avoided, put the buckle up. If
necessary, we can supply heavier upper squeeze of rollers with double cloth, to soak as uch etchant
fro the board as possible.
Disposal:
The disposal of the etching ediu ust be negotiated with the che ical supplier.
The etching achine itself was predo inantly ade fro recyclable aterials and is to be supplied at the
end of use to a proper and environ entally sound disposal.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [e-mail]

DL500-Manuel-E Page 14 / 20
Spare part list
699300 Kugelhahn DN15 f. Ätz aschine cog valve DN15 f. etching achines
699301 Kugelhahn DN25 f. Ätz aschine cog valve DN25 f. etching achines
699303 Heizung ko plett f. Ätz aschine Co plete heater for etching achine
699304 Schalter beleuchtet f. Ätz aschine Switch illu inated
699305 Quarzrohr f. Heizung Ätz aschine quartz tube for heater ele ent
699306 Heizele ent 1000W f. Ätz aschine Heater ele ent 1000W f. etching a-
chine
690303 Satz Vliestücher f. DL 500 set of drying cloth f. DL 500
690304 Satz Flachstrahldüsen f. DL 500
(56St)
Set (56 pc) flat spray nozzles f. DL
500
690305 Düsenstock unbestückt f. DL 500 Manifold without nozzles f. DL 500
690306 Lagerrollen für Wellen DL 500 Bearing rolls for DL 500
690308 Niederhalter f. Rie en DL 500 Downholder with roller f. belt DL 500
6000 Niederhalter f. Rie en ohne Röllchen
DL 500 Downholder without roller f. belt DL
500
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: s[email protected]

DL500-Manuel-E Page 15 / 20
690309 Führungsrolle f. Rie en DL 500 DL500 guidance roll for tooth belt
690310 Zahnrie en 900H037 f. DL 500 DL 500 belt type 900H037
690340 Zahnrie en 900H037 Kevlar/PU belt for DL 500, type 900H037
Kevlar/PU
690311 Getriebe otor (Transp.) f. DL 500
. ink. PVC Ritzel
gear otor (Transp.) f. DL 500
. incl. PVC teeth wheel for belt drive
690312 Ther ostat f. DL 500 Ther ostat f. DL 500
690313 Ätz ittelpu pe f. DL 500 ohne Motor pu p body for DL 500 without otor
690314 Spülwasserpu pe f. DL 500 Rinse water pu p f. DL 500
690315 Magnetventil f. DL 500 Solenoid valve f. DL 500
690316 Personenschutzschalter f. DL 500 Cover protection switch Moeller AT4
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [email protected]

DL500-Manuel-E Page 16 / 20
690317 Frontplatte FÜR DL 500 Front Panel FÜR DL 500
690318 Welle und I peller für Ätz it-
telpu pe f. DL 500
shaft and i peller for DL 500 etchant
pu p
690319 DL500 PVC Transportwelle 6 Zähne DL500 PVC Transport roller 6 dents
690301 DL500 PVC Transportwelle 5 Zähne DL500 PVC transport roller 5 dents
690302 Abquetsch-Welle f. DL 500 (5Z, un-
ten)
Squeeze roller f. DL 500 (5 dent,
lower)
690320 Abquetsch-Welle f. DL 500 (oben) Squeeze roller f. DL 500 (upper)
690321 Transport-Welle f. DL 500 (oben) Transport roller f. DL 500 (upper)
690322 Spülwassertank it Pu pe für DL
500
recycled rinsing tank w. pu p for DL
500
690323 Kühltank it Pu pe für DL 500 S.
Kühlt die
cooling tank (w. pu p) for DL 500S
achines.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [email protected]

DL500-Manuel-E Page 17 / 20
690325 DL Kontrolltisch als Puffer zwischen
zwei
DL control table, inline buffer between
two
690330 Durchlauf-Spül odul Conveyorised rinsing unit, stand
alone, as shown in
690350 Spülwassertank it Pu pe recycled rinsing tank w. pu p
690613 Motor f. DL 500 Motor f. DL 500
6000 Regelnetzteil für DL500
230VAC/12VDC/22VA
Rectifier Pcb for DL500
230VAC/12VDC/22VA
6000 Motorwelle PVC PVC otor gear wheel
6000 Hauptschalter it Relais Main Switch for DL500
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [e-mail]

DL500-Manuel-E Page 18 / 20
mendment 1 Closed-Loop Rinsing Unit
This description supple ents the operating instructions for the conveyorized etching achine DL 500 to
the aspects of installing and operating the closed-loop rinsing odule. This text cannot replace profes -
sional literature and safety discussions on the issue of waste water treat ent, though.
Setup
The odule is designed for installation behind the DL500 and under the delivery table of the etching
achine DL 500. You can also place the rinsing tank at any other place near the achine, as long as both
Installation
Tubes and connectors that are necessary to connect tank
with the rinsing section of the DL500 are part of delivery.
Water inlet into the achine is a 3/4” thread connection. At
the tank there is a vertical 20 spout.
The water flows back fro the achine via a 30 inner
dia eter tube.
The re aining valve at the tank serves to drain the water
fro the tank with the help of the pu p.
The cover of the rinse odule canbe re ove to allow control
of water quality or to add che icals such as flocculants or
si ilar.
Connect the power cable of the tank to the plug underneath
the DL500
The tank can take up 30l. There is a s all nozzle at the drain
of the tank sticking a little up. This is done by purpose to
provide roo for sedi entation underneath the drain of the tank. The pu p is not suitable for dry run.
Make sure that this nozzle is always covered with water !
The pu p switches on, when the etching pu p of the DL500 starts running. The a ount of rinsing wa-
ter can be adjusted by the ball valve underneath the DL500. Nor ally leave the valve co pletely open
when using a rinsing tank.
mendment 2 Stripper
This description supple ents the operating instructions
for DL 500 for the special version DL500-S Stripper.
Divergent of the standard DL500 the stripper version
co es with an additional lateral filter basket to filter out
possibly residues fro the stripping process. The
achine also has a bright, alkali-resistant tooth belt. The
stripper version is filled instead of the etchant with
special stripping liquid. The approach for negative
tenting resist is about 50g stripping che ical on one liter
of water.
Please pay heed to the following points:
Check regularly the sieve in the side tank of the
achine, so that the stripping agent does not overflow.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: s[email protected]

DL500-Manuel-E Page 19 / 20
Using for exa ple sodiu hydroxide, foa ay arise.
Please add a suitable anti-foa ing agent to the stripping
liquid.
To protect against exother ic reactions, please see an
appropriate cooling for the stripping agent, e.g. the
Bungard Cooler, who cools the stripping agent with the
rinse water. This Cooler can be connected in different
ways to the DL500. One option is to connect cooler and
the fresh water inlet for a rinsing unit odule (as you can
see in the picture below.
Guarantee
All achines are sub itted before distribution to exa ination on function and continuous operation fir ness. On the
achine we grant a work warranty of 12 onths to our custo ers starting fro purchase date on accuracy in ater -
ial and processing. We warrant at our choice by exchange of incorrect parts or by repair of the achine in our
house. Old parts change into our possession.
Disclaimer of Warranty
Bungard G bH & Co. KG reserves the right to change or enhance its achines or achine specifications according
to its judge ent, if necessary. Bungard cannot be held responsible to i ple ent aforesaid changes into achines
sold already.
Bungard products and services are liable to the current prices and conditions, which are subject to change.
The instructions and definitions in this docu ent are also subject to change and ark no assurance on the part of
Bungard.
This anual contains infor ations of the Bungard Sprint and is the translated English version.
Bungard Elektronik G bH & Co. KG, Rilkestraße 1, 51570 Windeck – Ger any
Tel.: [phone], Fax: [phone], E- ail: [email protected]

DL500-Manuel-E Page 20 / 20
Please regard the “Sales ter s and delivery conditions”. These are available after fulfil ent of the contract. We don't
furnish a guarantee or warranty in cause of da ages at aterial or hurts of people because of
Incorrect use of the achine
Wrong setup, installing and operating of the achine or incapable service
Use of the achine with defective safety equip ent
Non-observance of the service anual in regard to transport, stocking, setup, installation and service of the achine
Unlicensed odifications at the achine
Incorrect or inco plete repairs
Destructive force effect at the achine in cause of foreign objects or external use of force
Use of non-original spare parts
nor al wear parts.
We cannot accept subsequent clai s fro da age or destruction of work pieces worked on in the achine, be-
cause we have no knowledge or control over the operating conditions at your site. This is valid in a general anner
also for require ents fro da age to articles, buildings and persons as well as the environ ent.
We do not warrant that the function of the achine will eet the custo er's require ents or that the operation of the
achine will to this regard be error free.
In no event will we be liable to the custo er for any incidental, consequential, or indirect da ages of any kind, in-
cluding loss of profit and prosecution for environ ental pollution, even if we could have been aware of the possibility
of such da ages.
All infor ation was arranged with great care. We reserve ourselves however istake and technical changes without
previous announce ent.
Running the achine in corroding, hu id, dusty, extre ely hot or explosive at osphere happens at the oper -
ator's own risk and responsibility.
We explicitly exclude any warranty for da ages resulting fro running the achine in in corroding, hu id, dusty,
extre ely hot or explosive at osphere.
Copyright
© 2016 Bungard Elektronik G bH & Co. KG