480846-en-EU_V4.3 09/14
10
Making measurements
Important:
If the sensor is moved quickly, excessive field strength values will be displayed which do not
reflect the actual field conditions. This effect is caused by electrostatic charges.
Recommendation:
Hold the meter steady during the measurement.
Short-term measurements
Application:
Use either the “Instantaneous” or the “Max. Instantaneous” mode if the characteristics and
orientation of the field are unknown when entering an area exposed to electromagnetic
radiation.
Procedure
1. Hold the meter at arm’s length.
2. Make several measurements at various locations around the work place or the
interested areas as described above. This is particularly important if the field conditions
are unknown.
3. Pay special attention to measuring the neighboring vicinity for possible radiation sources.
Apart from active sources, those components connected to a source may also act as
radiators. For example, the cables used in diathermy equipment may also radiate
electromagnetic energy. Note that metallic objects within the field may locally concentrate
or amplify the field from a distant source.
Long-term exposure measurements
Location:
Place the meter between yourself and the suspected source of radiation. Make measurements
at those points where parts of your body are nearest to the source of radiation.
Note: Use the “Average ” or “Max average” modes only when the instantaneous measurement
values are fluctuating greatly.
Alarm function
Use this feature in the “Instantaneous”, “Max. Instantaneous”, “Average” or “Max. Average”
modes.
When the instantaneous measured value exceeds the limit value, a sequence of warning beeps
will sound.
