Sper scientific 840045 User manual
EMF Meter
840045
2
TABLE OF CONTENTS
1. INTRODUCTION . . . . . . . . . . . . .2
2. APPLICATION . . . . . . . . . . . . . . 3
3. FEATURES . . . . . . . . . . . . . . . .3
4. PANEL DESCRIPTION . . . . . . . . . .4
5. BATTERY REPLACEMENT . . . . . . . .4
6. MEASUREMENT PROCEDURES . . . .5
7. SPECIFICATIONS. . . . . . . . . . . . .7
8. NOTES & PRECAUTIONS . . . . . . . .8
9. WARRANTY . . . . . . . . . . . . . . . .8
INTRODUCTION
Your new meter measures electromagnetic
emissions from power lines, computer
monitors, television sets, video machinery
and other electrical appliances. While the
evidence of the carcinogenic eect of such
electromagnetic emissions is still inconclusive,
“prudent avoidance” of excessive exposure
over long periods of time is recommended.
3
APPLICATION
This meter is designed to measure
electromagnetic elds of extremely low
frequency (ELF) between 30 to 300Hz. It is
capable of measuring the electromagnetic
eld radiation intensity that is produced
by electric transmission equipment, power
lines, microwave ovens, air conditioners,
refrigerators, computer monitors and video/
audio devices to name a few.
The magnetic eld measurement unit is Tesla
(T), Gauss (G), milli-Gauss (mG) or micro-
Tesla (μT).
FEATURES
• micro-Tesla and milli-Gauss Measurement
unit display
• Data hold and maximum hold function
• Low battery indicator
4
1. Sensor
2. LCD
3. Power on/o
4. Maximum hold
button
5. Data hold button
6. mG unit select
button
7. μT unit select button
8. Range select button
9. Battery compartment
PANEL DESCRIPTION
BATTERY REPLACEMENT
Turn o the instrument. Remove the battery
cover. Replace the battery.
Install the battery cover.
5
MEASUREMENT PROCEDURES
1. Press to turn on the unit.
2. Select for mG or for μT.
3. Position the front (page 6, Figure 1) of
the meter to measure the electromagnetic
waves. Change the measurement angle or
position to obtain the highest reading value
(page 6, Figure 2-6).
4. Read the measured value. The
display of “OL” indicates an overload.
Press to select a higher range and
repeat the measurement.
Note... Due to normal environmental magnetic
elds, the meter may display a reading below
0.5mG prior to measuring. This is not a
malfunction of the device.
5. To freeze the current reading displayed on
the LCD, press . Press again to
resume active measurement.
6. To retain the maximum value,
press and the reading value displayed
on the LCD will continually update the
maximum value.
6
MEASUREMENT PROCEDURES
Figure 1 and 2 indicates the correct
measurement direction for electromagnetic
waves. Figure 3, 4, 5 and 6 indicates the
incorrect measurement direction for
electromagnetic waves.
7
Display: 3.5 digits LCD, maximum
reading 1999
Range: 200/2000 mG, 20/200 μT
Resolution: 0.1/1 mG or 0.01/0.1 μT
Frequency
response:
30Hz to 300Hz
Sensor: Single Axis
Accuracy: ±(2.5% + 6 dgt) at
50Hz/60Hz
Over load: LCD display “OL”
Sample rate: 2.5 times per second
Battery: 9V Battery
Battery life: Approximate 100 hours
Operating temp.
& humidity:
5ºC to 40ºC, below 80%
RH
Storage temp.
& humidity:
-10º C to 60ºC, below
70% RH
Weight: 170 g
Dimensions: 130 x 56 x 38 mm
Accessories: User’s manual, 9V battery,
Carrying case
SPECIFICATIONS
NOTES & PRECAUTIONS
• Never touch the meter to electrical cables
or other dangerous materials.
• To clean the EMF Meter use a soft dry cloth.
Never use a wet cloth, solvents or water, etc.
• Operation Altitude: Up to 2000M.
• Operating Environment: Indoor use.
This instrument has been designed for use
in a pollution environment of degree 2.
Sper Scientic warrants this product against defects
in materials and workmanship for a period of ve (5)
years from the date of purchase, and agrees to repair
or replace any defective unit without charge. If your
model has since been discontinued, an equivalent
Sper Scientic product will be substituted if available.
This warranty does not cover probes, batteries, or
damage resulting from accident, misuse, or abuse of
the product. In order to obtain warranty service, simply
ship the unit postage prepaid to:
SPER SCIENTIFIC LTD.
8281 E. Evans Rd., Suite #103
Scottsdale, AZ 85260
(480) 948-4448
Be sure to include your name, address, phone
number, and a detailed explanation of why you
are returning the item. Register online at www.
sperwarranty.com within 10 days of purchase.
8/17/2017
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