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USER MANUAL

Multi-Field EMF Meter

Model EMF450

Additional User Manual Translations available at www.extech.com

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Summary of Contents for EMF450

Page 1: ...USER MANUAL Multi Field EMF Meter Model EMF450 Additional User Manual Translations available at www extech com ...

Page 2: ...elevant safety regulations Carefully read the operating instructions for equipment generating or conducting electromagnetic energy that will be measured Do not operate near combustible gases or in damp environments Be aware that the field strength in the near vicinity of radiators increases proportionally to the inverse cube of the distance This means that enormous field strengths can result in th...

Page 3: ...extech com to check for the latest version of this User Guide Product Updates Product Registration and Customer Support Features Data hold HOLD Overload display OL Brightness options low medium high Selectable Auto Power off APO Time 1 3 5 10 15 30 minutes Key press Sounds Alarm Sounds On Off with programmable tone selections Information screen shows software version Languages English Traditional ...

Page 4: ...ar field power measurements Power density S Power per unit area in the direction of propagation usually expressed in units of watts per square meter W m2 or for convenience milli watts per square centimeter mW cm2 The characteristic of electromagnetic fields Electromagnetic fields propagate as waves and travel at the speed of light c The wavelength is proportional to the frequency λ wavelength c s...

Page 5: ...gital reading 17 RF Strength indication area 18 LF Electrical field color alert 19 Electrical field indication area 20 LF electromagnetic field color alert 21 Magnetic field indication area Color Coded Alert Table for reference purpose only see items 16 19 and 21 above Magnetic Fields Electrical Fields RF Strength Low 0 10 00mG 0 500V m 0 0 99mW m2 0 0 59V m Medium 10 01 100mG 501 1000V m 1 9 99 m...

Page 6: ...OLD Press the HOLD button to freeze the current readings on the display The HOLD display icon will appear when this mode is active To release the data press the HOLD button again Electric Field Measurements The EM450 measures the electric field Electrical Power in the atmosphere of the sensor s surroundings The sensor orientation is printed on the back of the meter Perform all tests according to t...

Page 7: ...of the meter toward the source of power 3 Hold the meter steady during the measurement 4 Make several measurements at various locations in the work place or other areas of interest This is particularly important if the field conditions are unknown 5 Pay special attention to measuring the neighboring vicinity for possible radiation sources Apart from active sources those components connected to a s...

Page 8: ...section 6 From the Main Menu screen Figure 4 the MENU key can be used to exit the Main Menu Figure 4 Main Menu Option Screen Brightness Low Middle High Magnetic unit Gauss mG Tesla µT Used for testing Electrical power 50 60Hz RF strength unit µW m mW m µW cm mV m V m mA m and dBm Used for testing RF energy from 50MHz to 3 5GHz Language English Traditional Chinese Simplified Chinese Japanese Spanis...

Page 9: ... batteries or rechargeable batteries in household waste As consumers users are legally required to take used batteries to appropriate collection sites the retail store where the batteries were purchased or wherever batteries are sold Disposal Do not dispose of this instrument in household waste The user is obligated to take end of life devices to a designated collection point for the disposal of e...

Page 10: ...uracy 2dB at 2 45GHz Display 4 digits Triple color TFT display Sample rate 6 seconds Sensors Triple axes XYZ ELF and RF and Electric field sensor Over range condition The EM450 is equipped with three individual aerial sensors to measure EMF Overload indication OL applies to all three axes X Y and Z Battery Three 3 1 5V alkaline batteries Battery Life Approx 8 hours Alarm Beeps when readings are in...

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