10. mV/m and V/m
：
Electric field intense
11. Bar code is an inductor used to observe measured value of each axis
（
X
，
Y
，
Z
）
12.
：
Low power indicator
13. M
：
Indicate that records are saved in memory
14. R
：
Indicate the manually records reading
4-3 Electric sensor usage description
The real triaxial sensor is in the front ball. The three voltages from sensor are input into the
meter. For the far field, it is better to use field sensor, because it has a wider frequency range. The
frequency range of this electric field sensor is from 50MHz to 3.5GHz.
This meter is a small and portable instrument. It is used to measure the electric field in the air
around the sensor. The measurement is performed in the environment you want to measure by
moving the antenna in electric field sensor.
You can measure to get a wide frequency electric field value of the place the electric field
sensor pointing to. If you want to find the electric field value transmitted by a interference source,
you can just point the antenna to the field and try to close the antenna to it
（
the electric field value
is inverse proportion to the distance between sensor and radiant source
）
. Notice that 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
4-4-1 Measurement unit
This meter is used to measure the electric component of the electric field. The default unit is
electric field intense
（
mV/m or V/m
）
. The electric field intense value can be automatically
changed to the other units, such as the relative magnetic intense unit
（
uA/m or mA/m
）
and power
density unit
（
uW/m
²、
mW/m
² or
uW/cm
²）
. You can change units according to the far field
formula in electromagnetic radiation standard.
Changing unit is invalid for near field. Because in near field there is no correct formula
between electric field intense and magic field intense. So when you want to measure in near field
you must set the sensor to the default unit.
4-4-2 Display mode
The bar code shows the dynamic range of each axis
（
X, Y, Z
）
for instantaneous
measurement.
Digitally display instantaneous value or the result value according to one of the following
four modes:
1
）
Instantaneous value
：
Digitally display the last instantaneous value measured by the