Champion 73536i Návod k obsluze stáhnout pdf (Strana 3)

QST – Devoted Entirely to Amateur Radio www.arrl.org June 2012 51

mode, the engine speed was

slow to pick up as the load

gradually increased. Each time a

light bulb was turned on in the

string, the motor speed hunted

around a bit before settling

down. This was by far the

noisiest generator of the lot, with

or without a load. During testing,

it vibrated to the point where the

engine access panel screw

unscrewed itself. The Generac

ran at its specified peak load of

2200 W for 10 seconds before

shutting off both the ac and the

engine. I tried but could not get

the

OVERLOAD LED to light

before shutdown. The Generac

had the lowest voltage variation

between no-load and full-load

conditions, only 1.1 V.

During the no-load to full-load

test the Generac responded

poorly with

ECONOMY mode on

or off. There was a noticeable

delay before the generator got

up to full voltage output. With

ECONOMY mode switched on,

there was a total dropout of

power for a brief moment.

Some good news: the conducted

emission (Figure 1) was lower

than the Champion or Yamaha

but was still quite noticeable in

the receiver. Radiated emission

was stronger and the generator

had to be moved 50 feet away

from the test antenna for the

ignition noise to subside.

Even with its larger displace-

ment engine, fuel economy was

just a bit better than the smaller

80 cc Champion engine, provid-

ing 4.390 kWh/G. The Generac

iX2000 passed the circular saw

test, but the saw was slow to come up to

speed. You may get impatient with this

generator if you have a lot of wood to cut.

Manufacturer: Generac Power Systems,

S45 W29290 Hwy 59, Waukesha, WI 53187;

tel 888-436-3722; www.generac.com.

Honda EU2000i

This red 1600 W (2000 W maximum)

inverter generator carries the highest list

price of the four, although we got ours from

longtime QST advertiser Mayberry Enter-

prises for $899 including shipping. The

Honda arrived with only a manual and no

other accessories.

The right side of the generator has the pull

Generac iX2000i, s/n 6463450C

Engine: four stroke, single cylinder, 127 cc.

Fuel capacity: 1 gallon.

AC output: 120 V at 60 Hz.

Power output: 2000 W, 2200 W surge.

DC output: 5 A at 12 V dc (battery charger).

Weight: 49.6 pounds (dry).

Size (HWD): 18 × 22 × 12 inches.

Price: $589

Lab Testing: Load Test, Eco On

Load Output Frequency Sound Level*

(W) (V ac) (Hz) (dBa)

0 121.5 60 72.4

100 121.3 60 72.1

250 121.1 60 69.0

500 121.3 60 71.6

1000 121.2 60 73.4

1500 120.8 60 74.1

2000 120.4 60 74.1

Eco off No load 60 73.4

Fuel efﬁciency: 4.390 kWh/G

*See text.

Testing

After the usual oiling, fueling and choking,

the Champion came to life on the first pull.

The pull was smooth and easy. I let this

generator and the others run about 15 min-

utes before testing.

Voltage varied a reasonable 4.7 V from

no-load to full-load. Response from no-load

to full-load was fast with the

ECONOMY

switch off and took 1.5 seconds to come up

to full voltage with the

ECONOMY switch on

(more on this type of response later). With a

2000 W load, the generator provided power

for one minute before the ac switched off.

The motor still runs in this condition and has

to be shut off to reset the circuit breaker.

As shown in Figure 1, conducted emission

was quite high with RF radiated from the

extension cord causing high noise levels

across most of the HF bands. Ignition noise

was eliminated by moving the generator

30 feet away from the antenna. The fuel

economy test produced 4.333 kWh/G, the

lowest of the four generators. Unfortunately,

the Champion 73536i failed to run a circular

saw, with the

OVERLOAD light lighting and

the ac shutting down in both

ECONOMY

modes.

Manufacturer: Champion Power Equipment,

10006 Santa Fe Springs Rd, Santa Fe

Springs, CA 90670; tel 877-338-0999;

www.championpowerequipment.com.

Generac iX2000

This orange 2000 W (2200 W surge) in-

verter generator has the largest displacement

engine at 127 cc and can provide more

power than the rest. It came with an orange

funnel for adding oil, a bottle of motor oil,

a two wrench set and a battery charging

cable.

The right side of the generator has the pull

cord, fuel valve and choke control. The front

end contains the control panel. At the top are

a yellow

LOW OIL LEVEL light, a red OVERLOAD

light and a green

READY light. Below the

LEDs is the dc battery charger socket with

circuit breaker. To the right are two ac

outlets and at the bottom, the engine on/off

switch and ground lug. The engine access

panel is released by loosening only one

screw, which has a retaining clip. At the top is

a vented fuel cap that also has a little priming

pump. The front and back are well vented.

There was no spark arrestor at the end of the

exhaust pipe.

The manual didn’t indicate that this model

Generac meets California emission stan-

dards. I checked the website and found this

model to be compliant in 49 states. The

manual is adequate but does not provide

a wiring diagram as found in the other

manuals.

Testing

Before I could start this unit, I had to clip off

a needle-like projection on the choke control.

It appeared to be an injection molding flaw

with the plastic. Bandaged up and aggravated

by my injury, I failed to carefully read the

manual. After nearly pulling my arm off, I

discovered that the engine must be primed by

a pump built into the gas vent on the gas cap.

Once primed, it started on the third pull.

Each pull was not smooth and unlike the

other generators, I could feel some compres-

sion from the piston moving in the cylinder.

The load test was interesting. In the ECONOMY

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