TONE DETECTION AND SLOW MODE
KI23400/KI27400 UM-2
-
47 -
Tone Detection & Slow Mode
Tone detection
This is a useful feature of both source and meter for quick continuity /
polarity checking. It provides several practical options.
•
To enter the source tone mode, while [SOURCE HOME]
displays on the left of the screen, select [MODE], and keep
pushing [MODE] to scroll modulation options.
•
If the power meter detects a standard optical test tone (e.g.
270 Hz, 1 KHz, 2 KHz), a buzzer sounds and the display
changes to show the actual measured modulation frequency
in Hz. This is useful for fiber identification and signalling.
•
If the power meter detects a non-standard optical test tone,
the display changes to show the actual measured
modulation frequency in Hz. This is useful for fiber
identification and signalling.
•
The meter can be used to check the actual modulation
frequency of test sources (between 150 and 9999 Hz).
•
If a MultiFiber ID tone is detected, a buzzer will sound and
the corresponding fiber ID xx number (1
–
12) will be
displayed. To use this feature, one or more sources with
MultiFiber ID are required. This is a very useful feature for
quick ribbon fiber polarity checking. It can also be used to
send one of 12 pre-coded signals between test staff.
Slow Mode
Slow Mode is occasionally useful to measure power on unstable
signals that accidentally trigger tone detection, or to improve test
resolution at very low power levels. In this mode, Autotest and tone
detection are disabled, and measurement integration time is extended.
•
To enter Slow Mode during turn on, hold down
F3
(button
located in the middle row right from the centre). ‘
-
tonE’ will
be displayed briefly.
After releasing [F3], the symbol of “
” will be displayed to
indicate Slow Mode has been activated.
•
Alternatively, to turn Slow Mode on/off while in Meter Menu,
press and hold button below [METER MODE] then press
F4
.
•
To turn on Slow Mode while in Tone detection mode, press
F4
. This will disable tone detection.
To turn Slow Mode off (i.e. to resume Tone detection), press
F3
to go to Meter Menu, hold
F3
and then press
F4
.
•
In Slow Mode the display will show average optical power of
the modulated signal, using a long average.
Содержание KI23400 Series
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