Sears 721.69252990, Основное полевое руководство

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D. MEASUREMENT WITH A FULLY ASSEMBLED
OVEN
(1) After all components, including the outer panels, are
fully assembled, measure for microwave energy
leakage around the door viewing window, the
exhaust opening and air inlet openings.
(2) Microwave energy leakage must not exceed the
values prescribed below.
NOTES:
Leakage with the outer panels removed - less than
5mW/cm.sq.
Leakage for a fully assembled oven (Before the latch
switch (primary) is interrupted) with the door in a
slightly opened position - less than 1 mW/cm .sq.
E. NOTE WHEN MEASURING
(1) Do not exceed meter full scale deflection.
(2) The test probe must be removed no faster than 1
inch/sec (2.5cm/sec) along the shaded area,
otherwise a false reading may result.
(3) The test probe must be held with the grip portion of
the handle. A false reading may result if the
operator’s hand is between the handle and the
probe.
(4) When testing near a corner of the door, keep the
probe perpendicular to the surface making sure the
probe horizontally along the oven surface, this may
possibly cause probe damage.
F. RECORD KEEPING AND NOTIFICATION AFTER
MEASUREMENT
(1) After adjustment and repair of any microwave energy
interruption or microwave energy blocking device,
record the measured values for future reference.
Also enter the information on the service invoice.
(2) Should the microwave energy leakage not be more
than 1mW/cm.sq. after determining that all parts are
in good condition, functioning properly and genuine
replacement parts which are listed in this manual
have been used.
(3) At least once a year, have the electromagnetic
energy leakage monitor checked for calibration by its
manufacturer.
G. POWER OUTPUT MEASUREMENT
(1) Fill the test beaker with 59 ˚F(15 ˚C) ~ 75 ˚F(24 ˚C)
1 liter tap water.
(2) Stir the water in the beaker with thermometer
( ˚F or ˚C) and measure temperature as T1.
(3) Place the beaker on the center of turntable.
(4) Set for one (1) minute and three (3) seconds and operate
the oven at high power.
NOTE: The additional three (3) seconds is to allow the
magnetron to begin generating power.
(5) When the heating is finished, stir the water again with
thermometer and measure the temperature of water as
T2.
(6) Subtract T1 from T2, this will give you the temperature
rise.
(7) The microwave power output is within specification, if the
temperature rise is as shown below:
Temperature Rise
Line Voltage Degrees ˚F Degrees ˚C
120 V 11.7 ~ 17.1 6.5 ~ 9.5
108 V Min. 10.8 Min 6
(8) Power output will be influenced by line voltage of power
supply. Consequently, correct power output must be
measured within 120V AC
1 Volt while unit is
operating.
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MODEL 721.69252990
721.69259990
SPECIAL TIP
• This oven used the button head screws.
• When you remove the screws, using the
tamper-resistant Torx driver have a
pin-in-head.
Button Head
(Torx style 2)