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1. FEATURES

* RF application :

For electromagnetic field strength measurement including mobile phone 
base station antenna radiation, RF power measurement for transmitters, 
wireless LAN ( Wi-Fi ) detection/ installation, wireless communication 
applications ( CW, TDMA, GSM, DECT ) and microwave leakage. 

* RF power measurement Range/Resolution :

Frequency range : 50 MHz to 3.5 GHz. 
30.00 mV/m to 11.00 V/m, 0.001,0.01, 0.1  mV/m,V/m. 
0.02 uW/cm2 to 32.09 uW/cm2, 0.01 uW/cm2.

0.02 µW/m2 ~ 320.9 mW/m2, 0.001,0.01 , 0.1 µW/m2,mW/m2

0.02 mA/m to 29.17 mA/m, 0.01 mA/m. 

*  LF application :

The EMF tester ( LF ) is designed to provide user a quick reliable and easy 
way to measure 
electromagnetic field radiation levels around power line , home appliances 
and industrial devices.

*  Magnetic Fields Measurement range/Resolution:

Frequency range : 50 Hz to 60 Hz. 
mG : 200.0 to 2000, 0.1 mG, 1 mG. 
uT: 20.00 to 200.0, 0.01 uT, 0.1 uT.

*  Electric Fields Measurement range/Resolution :

Frequency range : 50 Hz to 60 Hz. 
50 V/m to 2000 V/m, 1 V/m. 

* 2.4" TFT LCD display to easy reading.

Light weight and small size case design are suitable for handling with 
one hand.

*  Wristlet design provides extra protection to the

instrument especially for user one hand operation. 

* Built- in microprocessor circuit assures excellent performance and accuracy.
* Concise and compact buttons arrangement, easy operation.
* Memorize the maximum and minimum value with recall.
* Hold function to freeze the current reading value
* Power Supply DC 1.5V, UM4-AAA battery x 3 PCs.

1

Summary of Contents for EMF-840

Page 1: ...s METER is a complex and delicate instrument its durable structure will allow many years of use if proper operating techniques are developed Please read the following instructions carefully and always keep this manual within easy reach OPERATION MANUAL Multi Field EMF Meter Model EMF 840 PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION 3 Hagavish st Israel 58817 Tel 972 3 5595252 Fax 972 3 55945...

Page 2: ...t LFMagnetic Fields Electric Field RF EMF Strength 5 4 2 Data Hold 7 4 3 Data Record Max Min reading 7 4 4 LCD brightness select 7 4 5 Sound Alert Table 7 5 ADVANCED SETTING 8 5 1 Auto power OFF management 8 5 2 Set beeper sound ON OFF 9 5 3 Set LF UNIT 9 5 4 Set EMF UNIT 10 6 POWER SUPPLY 11 7 BATTERY REPLACEMENT 11 ...

Page 3: ... electromagnetic field radiation levels around power line home appliances and industrial devices Magnetic Fields Measurement range Resolution Frequency range 50 Hz to 60 Hz mG 200 0 to 2000 0 1 mG 1 mG uT 20 00 to 200 0 0 01 uT 0 1 uT Electric Fields Measurement range Resolution Frequency range 50 Hz to 60 Hz 50 V m to 2000 V m 1 V m 2 4 TFT LCD display to easy reading Light weight and small size ...

Page 4: ...Hold Freeze the display reading Memory Recall Maximum Minimum value Sampling Time Approx 1 second of Display Power Supply DC 1 5V UM4 AAA battery X 3 PCs DC 4 5 V battery Power Approx DC 26 mA 49 mA Consumption 0 3rd order LCD Backlight brightness Power off Auto shut off saves battery life or manual off by push button Weight 160g battery included Dimension HWD 107 x 45 x 20 mm 4 2 x 1 8 x 1 2 inch...

Page 5: ... MHz mA m 0 02 29 17 mA m 0 01 0 1 LF Magnetic Fields tester METER Unit Range Resolution Accuracy µT 20 00 200 0 µT 0 01 µt 0 1 µT 12 rdg 5 dgt micro Tesla at 50 Hz or 60 Hz mG 200 0 2000 mG 0 1 mG 1 mG milli Gauss LF Electric Field tester METER Unit Range Resolution Accuracy V m 50 V m 2000 V m 1 V m 7 rdg 20 dgt at 50 Hz or 60 Hz Above specification tests under the environment RF Field Strength ...

Page 6: ... Wristlet 3 2 Power Button 3 11 Electric Field detector 3 3 Hold Button 3 12 RF detector 3 4 REC Enter Button 3 13 LF detector 3 5 Button SET Button 3 6 Button 3 7 Tripod Fix Nut 3 8 Battery Cover Screws Logger Button 3 9 Battery compartment Cover 4 ...

Page 7: ...es the electric field Electrical Power in the atmosphere of the sensor s surroundings Remark Hold the meter at arm s length The sensor measur orientation please refrence meter case back According the indicated direction of the electric field sensor to Perform test refrrence figure 2 figure 2 LF Magnetic Field Measuremen value Magnetic field Point the front section of the meter to ward the desired ...

Page 8: ... RF strength meter Measuremen value Point the front face of the meter toward the desired RF field to take a measurement remark If the meter is moved quickly may be field strength values will be displayed which do not reflect the actual field conditions Measurement Note Hold the meter at arm s length The meter sensoring area Point toward signal source refrence figure 3 during the measurement please...

Page 9: ... be light and the maximum value will appear on the display b Press the REC Button 3 4 Fig 1 again the REC and MIN Symbol indicator will be light and the minimum value will appear on the display c To exit the memory record function just press the REC button for 1 5 seconds at least The display will revert to the current reading red led indicator will be quenched 4 4 LCD brightness select Depending ...

Page 10: ...nce will exit the Advanced Setting function the lcd display will return to normal screen 5 1 Auto power OFF management When the AUTO POWER OFF text is mark white color 1 Press Enter REC button into the setting function then use the Button 3 5 Fig 1 or Button 3 6 Fig 1 to select the upper value to Yes or No Yes Auto Power Off management will enable No Auto Power Off management will disable 2 After ...

Page 11: ...l save the setting function with default and Return to the previous leve 3 After press the Power Button 3 2 Fig 1 will back to nomal measurement 5 3 Set LF UNIT When the LF UNIT text is mark white color 1 Press Enter REC button into the setting function then use the Button 3 5 Fig 1 or Button 3 6 Fig 1 to select the LF unit to uT or mG uT micro Tesla mG milli Gauss 2 After select the LF unit to uT...

Page 12: ...utton 3 6 Fig 1 to select the EMF unit to mW m 2 µw m 2 or µw m 2 or V m mV m or mA m 2 After select the LF unit to mW m 2 µw m 2 or µw m 2 or V m mV m or mA m press the Enter REC button 3 4 Fig 1 will save the setting function with default and Return to the previous leve 3 After press the Power Button 3 2 Fig 1 will back to nomal measurement 10 ...

Page 13: ...easurement may still be made for several hours after low battery indicator appears before the instrument become inaccurate 2 Loose the Battery Cover Screws 3 8 Fig 1 and take away the Battery Cover 3 9 Fig 1 from the instrument and remove the battery 3 Replace with DC 1 5 V battery UM4 AAA Alkaline heavy duty x 3 PCs and reinstate the cover 4 Make sure the battery cover is secured after changing t...

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