Personal Safety Precautions; Before Using Your Inverter - Schumacher Electric PI-750 Owner's Manual

2. PERSONAL SAFETY PRECAUTIONS

2.1 Restrictions on use:
This inverter may not be used with life support devices or systems. Failure of this
inverter can reasonably be expected to cause failure of that life support device or
system, or to affect the safety or effectiveness of that device or system.
2.2 Wear complete eye and clothing protection when working near lead-acid batteries.
Always have someone nearby for help.
2.3 Remove all personal metal items from your body, such as rings, bracelets,
necklaces and watches. A lead-acid battery can produce a short circuit current
high enough to weld a ring to metal, causing a severe burn.
2.4 Never smoke or allow a spark or flame in the vicinity of the battery or engine.

3. BEFORE USING YOUR INVERTER

• This inverter is designed to be used with a single battery, up to group 31 (130 Ah
or smaller). The recommended source of power is a 12 Volt deep-cycle battery,
due to their high reserve capacity. Automotive batteries are recommended for
only a short period of time of an hour or less.
• Do not use the inverter with a product that draws a higher wattage than the
inverter can provide, as this may cause damage to the inverter and product.
When you turn on a device or a tool that runs on a motor, the device goes through 2 stages:
1. Start Up – Requiring an initial surge of power (commonly known as the
"starting" or "peak" load).
2. Continuous Operation – Power consumption drops (commonly known as the
"continuous load").
The wattage (WATTS) or amperes (AMPS) can normally be found stamped or
printed on most devices and equipment, or in the user's manual. Otherwise,
contact the manufacturer to find out whether the device you want to use is
compatible with a modified sine wave.
To calculate the wattage: Wattage = AMPS x 120 (AC Voltage).
To calculate the starting load: Starting Load = 2 x wattage.
In general, the startup load of the device or power tool determines whether your inverter
has the capability to power it.
Always run a test to establish whether the inverter will operate a particular piece of
equipment or device. In the event of a power overload, the inverter is designed to
automatically shut down.
This safety feature prevents damaging the inverter while testing devices and equipment
within the wattage range of the inverter.
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