DZ HT-7, Assembly Manual, Page: 9 / 44

Page 9
Your safety is of utmost importance to us. Please read this informa ‐
tion before you get started, and remember these rules as you continue
building and testing your kit.
1. Always have a healthy respect for electricity. Use a power supply
with overcurrent foldback or crowbar protection so that in case of
high currents the supply will shut down. Set the output current
only as high as necessary for a given step.
2. When measuring voltages inside electronic equipment, it is gener ‐
ally a good idea to use only one hand, wear rubber ‐ soled shoes and
avoid areas with standing water. However, remember that slightly
humid environments can prevent static electricity that could damage
the electronic parts! Use a humidifier in dry climates.
3. Do not work on powered electronics by yourself if at all possible.
Have a parent, spouse or friend nearby. If you must work alone,
keep a telephone handy in the event you run into problems.
4. Soldering irons are hot. They can burn your skin and cause damage
to workbenches and carpets. We recommend you use one with an auto ‐
matic shutoff in case you forget to turn it off when you are done.
5. Do not work on electronic projects when you are tired. We know you
want to finish it, but accidents are more likely when you are
tired. Take breaks! Be careful!
6. Use proper ventilation in your work area. Solder contains tin and
lead (or tin and silver), and solder fumes should not be allowed to
“hover” near your work. Open a door or window, use a fan, and be
cognizant of the potential dangers.
7. When clipping leads, use eye protection and/or be sure to direct
the flying leads down into a nearby trash can. As you gain experi ‐
ence clipping component leads, you will learn how to clip them so
that they fall harmlessly away from the board.
8. Be careful not to cut yourself when handling sharp objects such as
connectors and sheet metal. Keep some tissues, bandages and antibi ‐
otic ointment nearby in the event of an injury.
9. This may sound obvious, but do not insert any parts in any portion
of your body.
10. Use common sense in dealing with unfamiliar things. If you don’t
understand something, call us or ask a friend for help.
Safety First!