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Sampo EMF829, Instruction Manual, Page: 5 / 16

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Sampo EMF829 Instruction Manual Download Page 5

±2.4dB(1.9GHz to 35GHz) 

 

Isotropy deviation

：

  about ±1.0dB (f>50 MHz) 

 

Overload limit

：

4.2W/m2 (40 V/m) 

 

Temperature response(0 to 50 

℃

) 

：

± 1.5dB 

VI. Operation Description 

4-1 Front panel and back panel description 

1.

 

Electric sensor 

2.

 

Switch key 

3.

 

LCD 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for EMF829

Page 1: ...eflectors of metal walls may cause amplification effect of the electric field 6 Note that the electric field strength near the periphery of radiation sources increases to be inversely proportional to the third power of the distance So when approaching to small radiant sources you will immediately feel large electric field strength for example leakage of wave guide induction furnace 7 The tester fo...

Page 2: ...iation source the magnetic field intensity mode is suitable to be used 4 Power density S It is the power per unit area on the surface perpendicular to transmitting direction of electromagnetic field The unit of power density is always watt per square meter W m2 Milliwatt per square centimeter mW cm2 is also be used as unit for convenient application 5 Characteristic of electromagnetic field S 1 Th...

Page 3: ...sed to measure electromagnetic field intense of the transverse electromagnetic wave cell and Absorber rooms The unit and mode are selectable for purpose of using in limits defined in most of regulations The measured value can be displayed in units of electric field intense magnetic field intense and power density The frequency density is very important in high frequency It provides the power absor...

Page 4: ...ff 15 minutes Operation temperature range 0 C 50 C Operation humidity range 25 75 RH Storage temperature range 10 C 60 C Storage humidity range 0 80 RH Dimension 261cm Length 73cm Width 38cm Height Weight include batteries About 220g Accessory 9V battery carrying case manual 3 2 Electrical specification 1 Unless otherwise stated all specifications hold under the following assumptions device in far...

Page 5: ...o 35GHz Isotropy deviation about 1 0dB f 50 MHz Overload limit 4 2W m2 40 V m Temperature response 0 to 50 1 5dB VI Operation Description 4 1 Front panel and back panel description 1 Electric sensor 2 Switch key 3 LCD ...

Page 6: ...And press this key to quit this mode 5 key 1 Press this key to circle among instantaneous maximum instantaneous value average value maximum average value 2 Press this key and hold for 2 seconds to turn into alarm limit setting mode 3 In the CAL setting mode press this key to quit and turn into measurement mode 4 In manual reading mode press this key to quit this mode 5 In the alarm limit setting m...

Page 7: ...number 1 99 CL Memory clear mode 2 Displayed Automatically turning off is enabled Don t displayed Automatically turning off is disabled 3 MAX Maximum value is displayed AVG Average value is displayed MAX AVG Maximum average value is displayed 4 When the alarm is enabled this symbol means the currently measured value exceed the limitary value 5 ALM Displayed Alarm enabled or in the alarm limitary v...

Page 8: ...t the operator himself should not stand between inference source and measuring region because human body will insulate the electric field This meter is isotropic and you do not need to do special control on it Just point the sensor part to the target object to measure the electric field It depends on the three axises instead of moving the sensor antenna in the three planes 4 4 Terms to explain 4 4...

Page 9: ...tense value by the inputted CAL value then display or save the result The range of CAL is from 0 20 to 5 00 CAL is always used to the sensitivity value of the input electric field sensor in order to improve the measurement accuracy of frequency response The CAL provider by electric field sensor is used for this case In most cases the measurement accuracy is enough even if you ignore the frequency ...

Page 10: ...05V m Alarm limitary value is only suitable to compare with the total value of three axis 4 5 Settings 4 5 1 Set unit Set the unit with key as the figure show 1 Electric field intensity V m 2 Magnetic field intensity mA m 3 Power density mW m2 4 Power density uW cm2 4 5 2 Set display mode After powered on the meter is in instantaneous value mode As the figure show press key to set display mode ...

Page 11: ...ue 4 5 3 Set alarm limitary value ALM 1 Long press key to get in limitary value setting mode the units and digits on the screen will flash to change the setting values 2 Press or key to increase or decrease the value to what you want 3 Press key to save the value and quit this mode ...

Page 12: ...e symbol CA appeared to get in CAL setting mode the 4 digits is flashing and can be changed 2 Press or key to increase or decrease to the needed value 3 Press key to save the set value and quit the setting mode 4 5 5 Enable or disable alarm ...

Page 13: ...attery case cover and take out batteries Turn the right switch to the downside place to switch off the background light Turn the right switch to the upside place to switch on the background light 4 6 Measurement Important illustrate The following influence should be noticed for all the electric field intense meters If you quickly move the sensor the measured value will be bigger than the real elec...

Page 14: ...adiant source at a distance 4 6 2 Long time exposed measurement Place Place the meter between your work position and the possible radiant source Do the measurement at the part of your body most close to the radiant source Note Only when the instantaneous value changes greatly the average value and maximum average value modes will be used You can fix the meter on a board 4 7 Storage a single value ...

Page 15: ...t the record number 3 Press key to select the unit 4 Press key to select the axis 5 Press key to quit this mode 4 7 3 Clear memory You can clear the memory as the figure show 1 Long press key the symbol CL and no will appear and the meter is turned into clear mode 2 Press key to select YES ...

Page 16: ...emory V Operation Preparation 5 1 Mount batteries Open the battery case cover and put in the new batteries 5 2 Change batteries When the voltage is lower than necessary voltage the symbol will appear and it is time to change batteries ...

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