Owners Manual

Introduction

1.0 Introduction

Congratulations on your purchase of a CMW Series inverter. The CMW

Series includes the CMW412, CMW1012 and CMW1512 inverters under the

Magnum-Dimensions brand from Sensata Technologies. The CMW Series

inverters are modiﬁ ed waveform inverters designed to be powerful, yet

simple to operate, and will provide you with reliable AC power. Please read

this chapter to familiarize yourself with the features and beneﬁ ts of your

CMW Series inverter.

1.1 CMW Series Models

CMW412 – a 400-watt inverter with a 15A standard AC outlet.

CMW1012 – a 1000-watt inverter with a 15A GFCI AC outlet.

CMW1512 – a 1500-watt inverter with a 15A GFCI AC outlet.

1.2 How an Inverter Works

An inverter takes direct current (DC) from your batteries and turns it into

alternating current (AC)—like you use at home—to power your boat, RV, or

home appliances.

1.3 What Appliances run from Modiﬁ ed Sine Inverters

Today’s inverters come in two basic output waveforms: modiﬁ ed sine (which is

actually a modiﬁ ed square wave) and pure sine. Modiﬁ ed sine wave inverters

approximate a pure sine waveform.

The output of a modiﬁ ed sine wave inverter will run most electronic and

household items—including but not limited to TV, VCR, satellite dish receiver,

computers, and printers. Some devices such as rechargeable power supplies

for phones, drills, and other like devices may not run or could be damaged

by modiﬁ ed sine wave inverters. See Section 3.3 for more information on

speciﬁ c run times for various appliances.

1.4 Regulatory Compliance

The CMW Series inverters are intended to be used for land vehicles (RVs

or trucks) or marine craft. They are listed to UL Standard 458, (Power

Converters/Inverters and Power Converter/Inverter Systems for Land

Vehicles and Marine Crafts) for use in the US; and are also certiﬁ ed to CSA

Standard C22.2 No. 107.1 (General Use Power Supplies) for use in Canada.

These inverters have been tested and certiﬁ ed to product safety standards by

Intertek Testing Services (known as ETL), which is a Nationally Recognized

Testing Laboratory (NRTL). NRTLs are qualiﬁed organizations that meet

Occupational Safety and Health Administration (OSHA) regulations to

perform independent safety testing and product certiﬁ cation.