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YOUR OWN "SENTRY" WILL GUARD YOUR PROPERTY AGAINST POWER FAILURE
When electric utility power goes out, Sentry-Pro guards you
with its own generated electric power, automatically!

WHAT IS SENTRY-PRO?

SENTRY-PRO is an engine powered, emergency generator system, designed to produce temporary electric power. It can be your own, personal "ELECTRICAL UTILITY COMPANY" producing your own power, if loss of normal power should occur.

SENTRY-PRO will sense the loss of utility power and will start up automatically, and within seconds supply your home or business with emergency electrical power. When utility power is restored, SENTRY-PRO will know and shut down automatically, returning to a "WATCH" position continually guarding against the next, future loss of utility power.

The power system is designed for permanent, outside installation, much the same as a central air conditioning unit. It is fueled by NATURAL GAS, LPG or DIESEL fuel. The control panels are installed indoors, safe from the weather and close to normal utility entrance.

Once installed and operating, you need not worry about electric power loss because you have SENTRY-PRO.


HOW DOES SENTRY-PRO WORK?

The automatic transfer switch has a UL 1008 listing which insures a design that promises safe operation and guarantees that generator emergency power is always isolated from normal utility power. It is safely enclosed in a NEMA 1, metal enclosure, and meets NEC and UL regulations.

The automatic start-stop control panel constantly monitors normal power, 24 hours a day, 365 days a year. This is accurately and faithfully done by our powerful and exclusive SENTRY-PRO digital micro-processor, which is the complete system "brain."

If normal utility power drops below a pre-determined voltage level, this digital micro-processor signals the generator start up.

The transfer switch safely disconnects and isolates the normal utility power lines, and simultaneously allows emergency generator power to do its work.

SENTRY-PRO immediately begins to deliver clean, safe electric power and, within seconds, your home or business is back to normal. The only difference is that you are now generating your own emergency electric power from SENTRY-PRO, your own "ELECTRIC UTILITY COMPANY."

The micro-processor also has a set of light indicators showing the operating conditions of all important, key operations of the entire system. At a glance, you know that your emergency power system is working perfectly.


ALL ALUMINUM HOUSINGS WITH NEW
"SOUND OF SILENCE" SOUND PROOFING

  • Sound vibration damping sheet

  • Full 1" sound absorbing foam

  • Rust-free aluminum housing

  • Secondary cleaning and primer coat

  • Primary baked-on powder coat finish

The SENTRY-PRO housing is made of an all aluminum construction and with heavy gauge steel base. It is especially designed to keep its appearance clean and new looking, and to be as quiet as possible, for years to come.

SENTRY-PRO EXCLUSIVE "KLEEN-POWER"
PRODUCES SAFE, RELIABLE POWER

Normal Utility Cycle

Utility power with average 3% harmonic distortion and less than 25 tif.

SENTRY-PRO Generator Cycle

SENTRY-PRO with average 7% harmonic distortion and not more than 125 tif

Competitor's Generator Cycle

Average generator power with more than 40% harmonic distortion and averaging more than 520 tif.

Electric current is measured in hertz, the international unit of frequency, and it equals 60 cycles per second. A single cycle or wave form is called a sine wave and is the method of graphically showing how clean or distortion free, electric power can be.

The three graphs show how SENTRY-PRO sine wave compares with standard utility power and the standard generator set. The higher the percentage of distortion, the more danger of destroying voltage sensitive electric loads, such as computers, stereos, TVs, VCRs, refrigerators or freezers.

Most electric equipment can withstand up to 10% harmonic distortion. SENTRY-PRO easily meets this clean power requirement, with its average of 7%.

For your protection and peace of mind, always ask for a sine wave graph and voltage curve from Cowart Electric before you purchase any generator set for your home or business.

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