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4. Body
The machine body consists of light-grey PVC.
The interior of the machine is divided into the
spray zone and the medium container. They are
divided by a removable and punched intermedi-
ate bottom. The etching agent is sucked in when
the snail pipe turns and sprays out of the perfor-
ated pipe by centrifugal force. Offsetted drillings
in the tube lead to an oscillation effect. The cover
of the machine is removable and possesses an
opening for the plate holder. On the right of the
machine are the control elements. In this box are
thermostat, heating and thermal protection. Un-
der the machine is a drain cock for the etching
chamber and a drain cock and an overflow cock
for the rinse water tank. The rinse can be oper-
ated either as pure rinse or in combination with
our water treatment plant
Ionex
as a circulation
rinse.
5. Start Up
1. Examine the machine for possible transport
damages. If you encounter any problems inform
us and the carrier immediately.
2. Carefully transport the machine to its operation
site. Do not use the motor or other extending
parts as a handle.
3. If the operation site is not even, support the
machine in suitable form.
4. Guarantee that the drain valve for the etching
agent is closed. If you want to run the rinsing tank
in flow modus install fresh water access (right
cock) and dirt water removal (left cock) by con-
necting hoses to the appropriate left and right
cocks.
5. Fill the etching chamber of the machine to the
upper edge of the intermediate bottom with water.
Fill the rinse water tank until the plate holder is
sufficiently covered.
6. Attach the machine to the power supply. (We
presuppose the house-lateral security of the elec-
tric circuit)
7. Turn on the main switch and the switch for the
heating. While heating the heating switch is lit
and the glow bare becomes an orange colour.
8. Open the flap on top of the machine, by pulling
on the grasp of the plate holder. The flap tilts
back thereby and is locked. Place the plate holder
perpendicularly and close the flap.
9. Set the timer as described later on and start
the machine.
10. If you open the flap with running motor, the
safety switch must interrupt the etching proced-
ure. The engine runs only if the cover is closed
and the timer is started again.
11. After successful test run exchange the water
with the prepared etching agent.
The machine is now ready for use.
6. Adding the Etching Liquid
The machine can be operated with all common
etching agents. We recommend to use iron-III-
chloride (FeCl3). Using iron-III-chloride you will
obtain a substantially higher etching achievement
and precision than e.g. with sodiumpersulfate. It
can be also used much longer than most other
etching liquids and so meets the requirement to
reduce special refuse. You can purchase iron III-
chloride from us. Please consider the separate in-
structions for this product!
Be cautious with all regeneration-needing
etching agents. They can overheat by chem-
ical reaction. Prepare fresh etching agent out-
side of the machine. Fill in only completely
dissolved etching agent! If incompletely dis-
solved etching agent comes into the pump, it
can block and damage the pump
.
The etching agent is filled in from above into the
machine. The filling amounts to approx. 16 litres.
The correct level is reached, when the intermedi-
ate bottom is just covered. Fill the rinse water
tank of the jet up to a point, where a pcb on the
plate holder is immersed completely.
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
