Kingfisher KI 9600A-Ge, Руководство по эксплуатации и техническому обслуживанию

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KI 9000 UM-10
13
OPERATION: Power Meter
WARNING! Observe optical safety procedures relevant to the power
levels being measured.
To switch on KI 9600 instrument for permanent operation, press and
hold [POWER] during turn-on . ‘Perm’ on the display indicates that the
unit will stay on permanently. Also during instrument turn on:
- to view all display segments, press and hold down [


]
-
to display firmware version, press and hold down [HOLD]
-
for quiet non-beeping operation, press and hold down [


]
Should the instrument fail to turn on, the microprocessor may need re-
booting. To do this, remove the batteries for at least 40 seconds.
After turn-on, the instrument performs a self-calibration sequence, and
then displays absolute power in dBm at the previously set wavelength.
If ‘HI’ or ‘LO’ are displayed, the input is out of range.
To measure the operational power level in a fiber optic system, the
meter is used in dBm or linear modes. To measure optical loss or
attenuation, the power meter is used in dB mode, and the source
power is taken as a reference.
To scroll wavelength, press [


] or [


]. The display shows the
nominal wavelength in nm on the top right of the display.
To toggle logarithmic / relative/ linear display modes, press [dB / dBm
/ mW
]. The display will show ‘dB’ or ‘dBm’ or ‘nW’ .
To stop / start display update, press [Hold]. The symbol will flash when
the display is on hold.
To set reference, press and hold [Set Ref] for more than 3 sec.
When in relative mode, the reference value is displayed on the left
hand side of the display.
To display max min recorded power, press and hold [Max Min]. To re-
set this function, press [POWER].
When a multi-fibre ID tone (1 – 12) is detected by a power meter, a
buzzer will sound and the corresponding fiber ID number (1 – 12) will
be displayed.
When a standard tone is detected (e.g. 270 Hz, 1 KHz, 2 KHz), a
buzzer will sound and the corresponding modulation frequency will be
displayed. This is useful for fiber identification and signalling. The
meter can also be used to check the actual modulation frequency of
test sources.
If the meter detects a test tone higher than 200 Hz, the display will
show the actual measured modulation frequency in kHz. Maximum
displayed frequency is 2500 Hz.