Garland EM-C180 User Manual download pdf (Page 4)

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2.SPECIFICATIONS

Microwave output ................ 1,800W to 180W

Frequency ...........................2,450MHz

Power supply ....................... 208V, 60Hz

Rated current ......................13 Amp.

Safety Device ......................

Thermal protector(Magnetron)

150°C(270°F)Open

(Thermostat) 80°C(144°F)Close

Thermistor (Magnetron) 200°C(360°F) Open

108°C(194°F)Close

Thermistor(Duct)................120°C(216°F) Open

Fuse (Cartridge Type) ................. 250V 10A

Micro switch, Relay

Interlock Switch

Interlock monitor Switch

Door sensing Switch and

Relay RL-3 and 4

Max. input time....................Electronic Digital, up to

Manual

10min./Memory 30min.

Overall Dimensions........422(W)x540(D)x335(H) mm

Oven cavity size ............330(W)x330(D)x230(H) mm

Effective Capacity of Oven Cavity.........19.1liters

Net weight ........................... 32Kg

3. POWER OUTPUT MEASUREMENT

A. SINCE NEARLY 4,000 VOLTS EXISTS IN SOME

CIRCUITS OF THIS MICROWAVE OVEN, RE-

PAIRS SHOULD BE CARRIED OUT WITH

GREAT CARE.

B. TO AVOID POSSIBLE EXPOSURE TO MICRO-

WAVE ENERGY LEAKAGE, THE FOLLOWING

PRECATIONS MUST BE TAKEN BEFORE SER-

VICING.

(1) Before the power is applied.

(a) Open and close door several times to make

sure the interlock switch, door sensing switch

and interlock monitor switch operate properly.

(Listen for the clicking sound from switches.)

Make sure the interlock monitor switch is

closed after the interlock switch and door sens-

ing are open when the door is opened.

(See pages 1 and 6)

(b) Make sure the perforated screen and the choke

dielectric of the door are correctly mounted.

(2) After the power is applied.

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

mechanism operates properly.

(b) Check microwave energy leakage with a leak-

age detector and confirm the energy leakage

is below 5mW/cm

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

repaired of any of the following conditions.

(a) Door is not closed firmly against the cavity

front.

(b) The hinge is broken.

aged.

(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 that there are no defective parts in

the microwave generating and transmission

assembly. (especially wave guide).

(4) The following items should be checked after

the unit is repaired.

(a) The interlock monitor switch is connected cor-

rectly and firmly.

(b) The magnetron gasket on the magnetron is

properly positioned.

leakage of 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

components removed or bypassed.

NOTE: The power output specification, 1800W on this

model is measured with IEC measurement. The power

output is measured with two(2) liters water is equiva-

lent to 1800W in measurement with IEC, when mea-

sured with the following power output.

(1)1. Fill two beakers, one liter of tap water respec-

tively

2. Use an accurate thermometer and measure each

water temperature respectively.

(2) Place beakers side by side in center of the

ceramic tray.

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

Touch the “START” key and heat the water for

exactly two minutes.

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

and measure the water temperatures respectively.

(5) Calculate the temperature rise of water in each

beaker. Then calculate the average value of the two

temperature rises.( ƒ¢t)

(6) The teperature rise shall be in the following range;

Average Temp. Rise

Minimum 23.1°C

Maximum 28.3°C

Power output is affected by the line voltage under load.

(7) For correct Power output measurement, the line

voltage under load must be 208±2Volts.

4.PRECATIONS AND REPAIR SERVICE TIPS

PRELIMINARY

1 2 3 4 5 6 7 8 9 ... 27 28

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Garland EM-C180 User Manual Page 4

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