NARDA 8718B, Руководство пользователя

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67 Chapter 10 Alarm Settings
10
Alarm Settings
Alarm Description
The Model 8718B Meter is equipped with an audible alarm that
emits sound through a tiny hole on the bottom of the meter. The
alarm sounds automatically whenever the field strength
exceeds the measurement range of the probe or over ranges .
The meter can also be set to sound its alarm at a specific level
and/or to sound a variable tone indication of field strength.
Controlling the Alarm Functions
To make changes to the audio alarm settings...
1. Access the menu system by pressing the function key
that corresponds to the legend below MENU on the
bottom line of the display.
2. Press 8 ( NEXT ) to go to the Second Menu Screen .
3. Press 5 ( ALARM ) to access the alarm menu. A new
menu will appear that allows you to:
•
Turn the audio alarm on or off .
•
Set the alarm threshold in terms of percent of full scale
of the probe in use (1% to 99%).
•
Turn the variable tone alarm on or off .
N
ote
If you access the
menu system from
the Opening Menu
Screen, you will re-
turn to that screen.
Once an alarm set-
ting has been made,
the alarm function
will be initiated once
the meter is placed
into the measure-
ment mode.
A U D I O A L A R M S E T T I N G S
F I X E D I S T O N E I S
O N @ 2 5 % O F F
O N O F F O N O F F
F 1
F2
F 3 F 4