Maytag 1800 W - 2005 Manuale Utente

To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor  
before servicing, unless testing requires power. 

©2006 Maytag Services

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19 

Purpose of these monitors is to check radiation 
leakage around microwave oven door or other places 
where radiation could possibly occur. 

Instrument measures radiation leakage in milliwatts 
per square centimeters (mW/cm

2

). Probe should be 

used with the 2

"

 (5 cm) cone spacer. Water load of 

275 cc. (approximately 1 

1

/

3

 cup), is to be placed in 

the oven and used as a load during leakage tests. 

Operate the instrument on its internal 9 Volt battery 
power supply. “Range” switch is used on low and high 
while using test probe. On an oven with an unknown 
leakage, use high scale then switch to low scale and 
test for low leakage. “Bat Test” switch is used to 
check the battery and probe on the Holaday 
Instruments. If either is faulty, meter needle will not 
read above “Test Minimum” or battery mark on meter. 
Holaday Instrument has a probe test switch position. 
Meter needle must indicate in the “OK probe test” 
portion of the scale when in this position. Zero control 
is used to zero the needle. “ON-OFF” switch provides 
a means of turning the operating voltage on or off. 
“Range Multiplier” switch provides a means of 
selection either 0-2 or 0-10 and 0-100 on the Holaday 
Instruments sensitivity ranges. 

Test probe must be held by the grip portion of the 
handle, otherwise a false reading may result if 
operators hand is between the handle and probe. 

If oven is likely to have a large amount of leakage, 
approach oven slowly with the probe, while observing 
meter. This is achieved by holding the probe two or 
three feet from oven surface or gap between door and 
oven body while observing meter. When high leakage 
is expected, do not move probe horizontally along the 
oven surface. This could cause possible probe  
burn-out. Greatest leakage is generally found at the 
corners. After maximum leakage is established to be 
within the meter scale range, then probe may be 
moved horizontally around the door surface. 

Hold probe perpendicular to cabinet door. Place cone 
of probe on the door and/or cabinet door seam and 
move along the seam. If leakage of the oven is 
unknown, move probe slowly. Proceed with care in 
order not to exceed a full scale reading of meter. 
When testing near a corner or access area of door, 
keep probe perpendicular to the areas making sure 
probe end at the base of the cone does not get closer 
than 2” (5cm) to any metal. If it does, an erroneous 
reading may result. 

Always use the 2” (5cm) spacer with probe. Also, 
always proceed carefully in areas of high leakage or 
probe can be accidentally burned-out. Rotating 
antenna causes high peaks of energy. Although meter 
has averaging capabilities, probe will react 
instantaneously to peak power changes which will 
cause burn-out.