Sper scientific 840046 User manual

Microwave Meter
840046
Instruction Manual

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Microwave Meter 840046
Copyright ©2009 by Sper Scientific
ALL RIGHTS RESERVED
Printed in the USA
The contents of this manual may not be
reproduced or transmitted in any form or
by any means electronic, mechanical, or
other means that do not yet exist or may be
developed, including photocopying, recording,
or any information storage and retrieval
system without the express permission from
Sper Scientific.

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TABLE OF CONTENTS
INTRODUCTION. . . . . . . . . . . . . . .
FEATURES . . . . . . . . . . . . . . . . . . .
MATERIALS SUPPLIED. . . . . . . . .
KEYPAD. . . . . . . . . . . . . . . . . . . . . .
MEASUREMENT PROCEDURES. .
BATTERY REPLACEMENT. . . . . . .
MAINTENANCE. . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES. . . . . .
SPECIFICATIONS. . . . . . . . . . . . . .
WARRANTY . . . . . . . . . . . . . . . . . .
4
5
6
7
8
16
16
17
18
20

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INTRODUCTION
Measure hazardous microwave
oven leakage
With use microwave oven door
seals may wear enabling hazardous
microwaves to leak out. Sper Scientific
Microwave Meter is calibrated at
2.45 GHZ, the precise frequency of
microwave ovens to accurately
measure the intensity of such micro-
wave leakage. Features maximum
and minimum hold, an audible alarm,
and a zero adjustment to eliminate
background EMF. The display also
indicates overload and low battery.
Comes with a soft carrying case and
standard 9V battery, which provides
approximately 100 hours of use.

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FEATURES
 Frequency selection of normal
or microwave range
 Tripod mounting socket
 Maximum and minimum
 Hold function
 Auto-power-off
 Built-in alarm
 Zero offset adjustment
 Overload indicator
 Low battery indicator

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MATERIALS SUPPLIED
 Meter
 9 Volt Battery
 Instruction Manual
 Soft Carrying Case

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KEYPAD
1. Sensor position
2. LCD
3. Zero button
4. Power on/off
5. Maximum/minimum button
6. Frequency range selection button
7. Data hold button
8. Tripod mounting socket
9. Battery cover

MEASUREMENT PROCEDURES
1. Press POWER to turn the meter on.
2. Press FREQ. RANGE to select
microwave (2.45 GHZ) or RF (50
MHZ to 3.5 GHZ). When 2.45 GHZ
is selected, “2450 MHZ” will appear
on the lower right corner of the LCD.
When normal range is selected,
“2450 MHZ” will disappear from the
lower right corner of the display.
3. For general information on
microwave oven leakage and
instructions on preparing for
microwave measurement,
see page 14.
4. Position the top of the meter to
measure the electromagnetic waves.
Adjust the measurement angle or
position until the highest reading
is obtained.
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Measurement Position
Figure 1 shows the correct
measurement position of
RF electromagnetic field
strength.
Figure 2 shows the
incorrect measurement
positions of RF
electromagnetic field
strength.
MEASUREMENT PROCEDURES
Figure 1
Figure 2

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Note…
Due to background environmental
magnetic fields, this meter may display
a reading value under 0.002 mW/cm2
prior to measuring.
Maximum, Minimum and Hold
1. Press MAX/MIN to retain the maxi-
mum value. “MAX” will appear on
the LCD. The meter will continue
measuring, holding the maximum
value on the LCD until exceeded.
2. Press MAX/MIN again to retain the
minimum value. “MIN” will appear
on the LCD. The meter will continue
measuring, holding the minimum
value on the LCD until exceeded.
3. Press MAX/MIN again to retain the
maximum and minimum values
simultaneously. “MAX MIN” will
MEASUREMENT PROCEDURES