Velleman ET20 - Manual (Page 3)

ET20
V. 02 – 13/09/2013 3 ©Velleman nv
3. General Guidelines
Refer to the Velleman® Service and Quality Warranty on the last pages of this manual.
Indoor use only. Keep this device away from rain, moisture, splashing and dripping liquids.
Never put objects filled with liquids on top of or close to the device.
Keep this device away from dust and extreme temperatures.
Protect this device from shocks and abuse. Avoid brute force when operating the device.
Familiarise yourself with the functions of the device before actually using it.
All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to
the device is not covered by the warranty.
Only use the device for its intended purpose. Using the device in an unauthorised way will void the
warranty.
Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the
dealer will not accept responsibility for any ensuing defects or problems.
Keep this manual for future reference.
4. Assembly
Refer to the illustrations on page 2 of this manual.
1. First, fill the tank [3] with water and check for leaks. If no leaks are found, remove the water from the
tank.
2. One of the air inlets on the tank is sealed.
Connect the air pump [1] to the free air inlet by means of the plastic tube.
3. Fit the heater [5] (spare part order code ET200) at the side opposite the air inlet. The heater is pre-
regulated and set for a temperature of approx. 32 °C, the optimal temperature for ferric chloride treatment.
4. Carefully tighten the clamping screw.
5. Install the support pieces [2] in the tank’s grooves.
The etching tank is now ready to be used.
Safety Warning
You should only remove the heater in exceptional circumstances, as it is not without danger. The glass of the
heater may crack under the influence of the difference in temperature when the warm heater comes into
contact with cold water. There is a genuine risk of electroshocks if this happens. Therefore, you should always
unplug the device and let the heater cool down before removing it. You should also make sure that your hands
are dry when you are connecting or disconnecting the device. Take care to use this device with the suitable
amount of etching solution.
5. Operation
1. Place the air pump [1] higher than the liquid level in the tank to avoid flow-back.
2. Fill the tank with the desired solution: use ± 2.25 L to fill the tank to about the height of the third
horizontal rib. Caution: Make sure there is enough liquid in the tank. The red line [4] on the heater must
always be covered in liquid.
3. Turn the heater on and let it heat up for 2 minutes.
4. Put the plastic clips [7] on the printed board, and adjust the length of the fixation wires [6]. Put the board
in the tank at ± 1 cm below the liquid surface.
5. Turn the air pump [1] on to agitate the liquid.
6. Monitor the evolution of the etching. You can place a lamp behind the tank; because the tank is
transparent, you can see what happens. At the correct temperature, etching takes about 4 minutes.
7. When finished, wash away any trace of the product under running water.
8. Finally, inspect the tracks of your etched circuit.
6. Technical Specifications
etching tank with pump and heater 300 W / 230 Vac
spare heater (not incl.) order code ET200
dimensions external 360 x 280 x 40 mm
internal 350 x 230 x 30 mm
tank capacity 2 L
Use this device with original accessories only. Velleman nv cannot be held responsible in the event
of damage or injury resulting from (incorrect) use of this device. For more info concerning this