1.4 GENERAL SAFETY AND INSTALLATION PRECAUTIONS
• Before using the Alpha Pro charge regulator, read all instructions and cautionary markings on the Alternator /
Alpha Pro charge regulator, the batteries, and all appropriate sections of the manual.
• The Alpha Pro charge regulator is designed to be permanently connected to your DC electrical systems.
Mastervolt recommends that all wiring be done by a certified technician or electrician to ensure that adherence
to proper electrical wiring regulations.
• Wrong use of the charging mode selector will lead to serious damage to batteries, the Alternator, the Alpha Pro
charge regulator charge regulator and the cabling.
• Wrong MasterBus settings will lead to serious damage to batteries, the Alternator, the Alpha Pro charge regulator
and the cabling.
• Selection of a MasterShunt connected to a battery with a different nominal voltage will lead to serious damage
to batteries, the Alternator, the Alpha Pro charge regulator and the cabling.
• Be aware of parts that can be hot: not only engine parts, but the alternator as well.
• In case of fire, you must use the fire extinguisher which is appropriate for electrical equipment.
• Short circuiting or reversing polarity will lead to serious damage to batteries, the Alternator, the Alpha Pro charge
regulator and the cabling. Fuses between the batteries and the electrical installation cannot prevent damage
caused by reversed polarity and the warranty will be void.
• Secure the DC wiring with a fuse, according to the guidelines in this manual. Connection and protection must be
done in accordance with local standards.
• Do not work on the Alternator, Alpha Pro charge regulator or parts of the electrical system if it is still connected
to a power source.
1.5 WARNING REGARDING THE USE OF BATTERIES
1 Someone should be within range of your voice or close enough to come to your aid when you work near a
battery.
2 Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
3 Wear complete eye protection and clothing protection. Avoid touching eyes while working near battery.
4 If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters eye, immediately
flood eye with running cold water for at least 10 minutes and get medical attention immediately.
5 NEVER smoke or allow a spark or flame in vicinity of battery or engine.
6 Do not short circuit batteries, as this may result in explosion and fire hazard! Be extra cautious to reduce risk of
dropping a metal tool onto a battery. It might spark or short-circuit battery or other electrical part that may cause
explosion.
7 Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a battery.
A battery can produce a short-circuit current high enough to weld a ring or the like to metal, causing a severe
burn.
8 Do not use the Alpha Pro charge regulator for charging non-rechargeable batteries that are commonly used
with home appliances. These batteries may burst and cause injury to persons and damage to property.
9 NEVER charge a frozen battery.
10 Excessive battery discharge and/or high charging voltages can cause serious damage to batteries. Do not
exceed the recommended limits of discharge level of your batteries.
11 If it is necessary to remove a battery, always remove grounded terminal from battery first. Ensure that all
accessories are off, so as not to cause an arc.
12 Ensure that the area around battery is well ventilated while battery is being charged. Refer to the
recommendations of the battery manufacturer.
13 Batteries are heavy! It may become a projectile if it is involved in an accident! Ensure that adequate and sure
mounting and always use suitable handling equipment for transportation.
1.6 WARNING REGARDING LIFE SUPPORT APPLICATIONS
Do not use the Alpha Pro charge regulator for applications in any medical equipment intended for use as a
component of a life support system. For this type of use a specific written agreement between the customer and
Mastervolt is required.
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