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Before all maintenance work on the machine
(filling, emptying, cleaning etc.) switch off the
machine and pull power supply plugs.
Pay increased attention to electrical defects be-
cause of the conductivity of etching solution con-
taining metal salts. In this a case pull the plug of
the machine and replug only after professional re-
pair. This is also valid for spilled etching agent.
As protection against unintentional contact with
chemicals, the machines are equipped with a
cover protection (door contact switch). This
switch is connected to the timer and stops the
pump.
Note: For job safety examine occasionally the
correct functioning of the cover protection. Doing
so wear protective clothing and eye protection.
The machine may be switched on only with filled
etching agent chamber. The quartz glow bar must
be always sufficiently covered with etching agent!
An uncovered glow bar may cause destruction of
machine! The correct filling is on height of the in-
termediate bottom.
If the etching agent is prepared by release from
salts or mixing liquids, this must always take
place
outside
of the machine! Pay attention to
the safety references of the chemical manufac-
turer as well.
Timer
Pressing the timer's start button quickly for
multiple times will start the built-in self test.
During this test, the motor runs for about two
seconds, not respecting the lid security switch.
For safety reasons, the timer self-test must not be
provoqued.
Personal protection equipment
While handling etching agents, thus in particular
when filling and emptying the machine, wear usu-
al protection equipment, like apron, gloves and
eye protection.
Place of assembly
Requirement according to WHG and/or supervi-
sion of trade: In order to prevent the penetration
of etching agent into the ground, the machine
must be installed a) in a sufficiently large area
with chemical-firm, waterproof ground lining (no
tiles, no concrete!) or b) in a chemical resistance,
waterproof collecting tray (we offer this as option),
which seizes the entire volume of the etching li-
quid.
Exhaust air
We recommend to install an exhaust above the
machine for eventual etching steams. This re-
commendation is however purely precautionary.
Leakage of aggressive steams could not be
proven in two independent investigations. (It es-
capes water vapour, the salts of the etching agent
remains in the solution). An Exhaust connected
firmly to the machine is not possible - risk of the
damage by negative pressure.
Environmental protection
Used up etching agent is special refuse. It must
be handed over to certified disposal enterprises
under indication of the waste key number. Pay at-
tention to the refuse laws and regulations of your
country. We are not authorized to redemption.
Waste water
Prior to operating the machine, be informed on all
applying environmental protection legislation of
your country. Used etching liquid contains copper
and must be treated as special waste. In most
countries, this applies also for the rinse water. We
recommend that you collect dirty rinse water and
use it to set up fresh etching liquid. In accordance
to anti pollution laws, the final cleaning of the
boards normally requires a cascade rinsing unit,
or further wet process steps, like chem. tinning or
resist stripping. Any attempt to neutralize the
etchant or the rinse water is NOT recommend-
able to other than approved chemists.
If you do not have an appropriate water purifica-
tion for the rinse water in your facility, we recom-
mend our waste water processing facility
Ionex
for this task.
Jet 34d
Etching machine
Operating Instructions
Bungard Elektronik GmbH & Co. KG, Rilkestraße 1, 51570 Windeck – Germany
Tel.: +49 (0) 2292/5036, Fax: +49 (0) 2292/6175, E-mail: support@bungard.de
