• When soldering active components (ICs, Transistors,
LEDs...), it is very important to prevent overheating the
components. They should be soldered in no more than about 5
seconds. In addition, it is important not to confuse the polarity!
See the next chapter on individual component types and their
correct orientation.
• To solder:
1. Use the tip of the soldering iron to simultaneously heat
up the PCB and the component leg.
2. Add solder. It should melt around the component leg.
3. Wait a moment. Do not move the part you just soldered
for a few seconds while it is cooling down. Moving it
may cause the solder joint to crack.
4. Then remove the iron. With lead solder, the solder joint
should be glossy.
• After soldering, use side cutters to cut the leads straight above
the solder joint.
• After you are finished, check all components for correct
placement and orientation. Also, check for unintentional shorts
on the board. Small solder leftovers may cause shorts which
can damage the board or the components.
• Use isopropyl alcohol (IPA) or a specific PCB cleaner fluid to
remove flux residues. Flux is corrosive and should not remain
on the board.
5
Summary of Contents for AE20401
Page 23: ...Finished Component Side Finished Solder Side without the LCD LCD Mounting 17 ...
Page 31: ...Operation Functions Menu Structure 25 ...
Page 37: ...31 Example 1 noise Example 2 one signal superimposed on another ...
Page 50: ...Circuit Diagram Part 1 2 44 ...
Page 51: ...Part 2 2 45 ...
Page 63: ... Nr of valid counts depends on range 57 ...
Page 64: ...ASCEL ELECTRONIC www ascel electronic de 2015 ...