Sanyo EM-842WS User Manual

Page 15

2 .

2 . SPECIFICA

SPECIFICA

SPECIFICATIONS

TIONS

Rated Power Consumption .. 1650W.
Microwave Output ................ 1100W.
Frequency ............................. 2,450MHz±50MHz.
Power Supply ........................ 120V±12V, 60Hz.
Rated Current ....................... 14.0 Amp.
Safety Devices ..................... Thermal Fuse open at

332°F (167°C) for Cavity.
Thermal Protector open at
252°F (122°C) for Magnetron.
Fuse (Cartridge Type 20A)
Primary Interlock Switch,
Door Sensing Switch and
Relay 2.
Interlock Monitor Switch.

Timer ..................................... Electronic Digital, up to

99 min. 99 sec.

Overall Dimensions ................ 21

”(W) x 18”(D) x 12

”(H)

Oven Cavity Size .................. 14

”(W) x 15

”(D) x 9

”(H)

Turn Table Diameter .............. 12

”

Effective Capacity of
Oven Cavity .......................... 1.4 Cubic Feet.
Net Weight ........................... Approx. 40 Lbs.

3 .

3 . POWER OUTPUT MEASUREMENT

POWER OUTPUT MEASUREMENT

NOTE

The power output specification, 1100W on this model is
measured with IEC measurement. The power output is
measured with two (2) liters water is equivalent to 1100W
in measurement with IEC, when measured with the following
power output.

(1) Fill two beakers (glass or plastic) with each one liter of

tap water (about 20°C) and measure the water temperature.
(Use a thermometer with a 1/10 degree gauge).

(2) Place the beakers side by side in the center of the glass tray.

(3) Close the door, set the “TIME” for two minutes. (“200” in

the display window). Touch the “START” key and heat
the water exactly for two minutes.

(4) Take the beakers out, immediately stir the water and

measure the water temperature respectively.

(5) Calculate the temperature rise of water in each beaker.

Then calculate the average value of two temperature rises.
Output power can be calculated by the equation :
Power Output (W) = 70 x

∆

Where

∆

t is an average temperature rise in degrees

Centigrade.

(6) Power Output shall be in the following range :

Average Temperature Rise

Power Output

Minimum

22.8°F (12.7°C)

889W

Maximum

28.8°F (16.0°C)

1120W

(7) Power Output is affected by the line voltage under load.

For correct Power Output measurement, the line voltage
under load must be 120±1 volts.

4 .

4 . PRECAUTIONS AND REP

PRECAUTIONS AND REP

PRECAUTIONS AND REPAIR SER

AIR SER

AIR SERVICE TIPS

VICE TIPS

PRELIMINAR

PRELIMINARY

A. SINCE NEARL

SINCE NEARL

SINCE NEARLY 2,000 VOL

Y 2,000 VOL

Y 2,000 VOLTS EXISTS IN SOME CIR-

TS EXISTS IN SOME CIR-

CUITS OF THIS MICROW

CUITS OF THIS MICROWA

AVE OVEN, REP

VE OVEN, REP

VE OVEN, REPAIRS SHOULD

AIRS SHOULD

BE CARRIED OUT WITH GREA

BE CARRIED OUT WITH GREAT CARE.

T CARE.

B. TO A

TO A

TO AVOID POSSIBLE EXPOSURE TO MICROW

VOID POSSIBLE EXPOSURE TO MICROW

VOID POSSIBLE EXPOSURE TO MICROWA

AVE

ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS

ENERGY LEAKAGE, THE FOLLOWING PRECAUTIONS
MUST BE T

MUST BE T

MUST BE TAKEN BEFORE SER

AKEN BEFORE SER

AKEN BEFORE SERVICING.

VICING.

(1) Before the power is applied :

(a) Open and close door several times to make sure the

primary interlock switch, the interlock monitor switch
and the door sensing switch operate properly.
(Listen for the clicking sound from the switches).
Make sure the interlock monitor switch closes after
the primary interlock switch is opens when the door
is opened. (See pages 1 and 6).

(b) Make sure the perforated screen and the choke die-

lectric of the door are correctly mounted.

(2) After the power is applied :

(a) Open and close the door to see if the interlock mech-

anism operates properly.

(b) Check microwave energy leakage with a leakage

detector and confirm the energy leakage should be
no greater than 4mW/cm

to allow for measurement

uncertainty.

(3) Do not operate the unit until it is completely repaired,

if any of the following conditions exists :

(a) Door does not close firmly against the cavity front.
(b) The hinge is broken.
(c) The choke dielectric or the door seal is damaged.
(d) The door is bent or warped, or there is any other

visible damage to the oven that may cause microwave
energy leakage.

NOTE :

Always keep the seal clean.

(e) Make sure that there are no defective parts in the

interlock mechanism.

(f) Make sure there are no defective parts in the

microwave generating and transmission assembly.
(especially waveguide).

(4) The following items should be checked after the unit

is repaired :

(a) The interlock monitor switch is connected correctly

and firmly.

(b) The magnetron gasket on the magnetron is properly

positioned.

microwave energy).

(d) The door can be properly closed and the safety

switches work properly.

(e) The oven must be stopped when the door is opened

or the time is up.

The oven must not be operated with any of the above

The oven must not be operated with any of the above
components r

components r

components removed or bypassed.

emoved or bypassed.

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