FLIR Extech Instruments 480823 Manual de usuario

User's Guide

Electromagnetic Field Meter

Model 480823

480823-EU-EN-V2.2-4/12

Introduction

Congratulations on your purchase of E tech’s Electromagnetic Field Meter, model 480823. This

battery powered meter measures and displays EMF in Gauss and Tesla units with a frequency

bandwidth of 30 to 300Hz. This professional meter, with proper care, will provide years of safe

reliable service.

Meter Description

1. LCD display

2. EMF Sensor

3. Power/Units switch

Note that the tilt stand and battery

compartment are located on the rear of the meter

Meter Operation

1. Place the “OFF/Tesla/Gauss” Switch to the Gauss or Tesla position.

2. Move the meter's sensor slowly toward the device under test and read the LCD indication. If the

LCD display is completely blank or if “LO BAT” appears on the left corner of the LCD, check the

9V battery (replace if necessary).

3. Notice that the field intensity reading increases as you move closer to a field.

4. Position the meter at different angles to the device under test and observe how this positioning

affects the EMF readings.

5. Record the highest reading obtained from the various reading positions.

6. If the device under test is off, the EMF tester reading should go to zero unless another source of

radiation is present.

7. If the meter’s display indicates a “1” on the left side of the LCD, an overload condition e ists.

This indicates that the measured radiation is higher than the capability of the meter.

480823-EU-EN-V2.2-4/12

EMF Exposure

The effect of EMF e posure on humans and animals is a modern day concern. At the time of this

writing, to the best of our knowledge, no standards or recommendations e ist regarding limits of

EMF e posure. Until evidence suggests that there is not a health risk associated with EMF

e posure, common sense would dictate that a practice of minimal e posure be e ercised.

Battery Replacement

When the low battery message “LO BAT” appears on the left corner of the LCD, the 9V battery has

fallen to a critically low voltage level and should be replaced as soon as possible. The battery

compartment cover is located at the bottom rear of the meter. Slide off the battery compartment

cover, change the battery, and replace the compartment cover.

You, as the end user, are legally bound (Battery ordinance) to return all used batteries and

accumulators; disposal in the household garbage is prohibited

You can hand over your used batteries / accumulators at collection points in your community

or wherever batteries / accumulators are sold!

Disposal: Follow the valid legal stipulations in respect of the disposal of the device at the

end of its lifecycle

Specifications

Display 13mm (0.5”) 3-1/2 digit (1999 count) LCD

with low battery and overload indication

Measurement rate Appro . 0.4 seconds

Maximum ranges and

resolution

19.99µTesla (0.01) and 199.9mGauss (0.1)

NOTE: 1 µTesla = 10 milli-Gauss

Accuracy ± (4% + 3 digits) @ 50/60Hz

Frequency bandwidth 30 to 300Hz (single a is measurements only)

Over-range indication “1___” is displayed

Operating

Temperature/Humidity

Temperature: 0 to 50 C (32 to 122

RH: 90% ma . (0 to 35 C); 80% ma . (35 to 50 C)

Power source 9V Battery

Power consumption Appro . 3mA DC

Dimensions 131 70 25mm (5.2 2.8 1”)

Weight 165g (0.36 lbs.)

www.e tech.com

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