NARDA nbm-520, Руководство по эксплуатации

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4 Measuring with the NBM-520
30
NBM-520 Narda
4.8 Freezing a result
1. Press the
Hold
button to hold the measurement value
that is currently displayed.
2. Press the
Hold
button again to resume measuring.
4.9 Changing the field type measurement
The E-field and H-field probes can only measure the field
type for which they were designed. The field type is selected
automatically according to the probe used.
Combination probes can measure electric as well as mag-
netic fields. You will need to select the field type on the
instrument. The field type is shown at the bottom left of the
display.
To change the field type
⇒
Press the
Hold
and
Mode
buttons simultaneously (tog-
gle function).
4.10 Using the alarm function
The alarm function allows you to enter a limit value. The
instrument outputs an audible signal and the Status LED
flashes red when this limit value is exceeded.
This function is useful for checking limit values or for early
detection of dangerous field strengths, for example.
To activate the alarm function
⇒
Set the parameter
ALARM
to
ON
using the PC software.