Fluke PM3082 Service Manual page 436

6 - 1 0
Test set up:
5500A
SCOPE
OUTPUT
o
T
Settings/procedure:
1 - Apply a 5 kHz sine wave signal of 600 mV (pp) to input CH1, and press the AUTOSET key.
2 - Set CH1 to 0.1 V/div.
3 - Adjust the input signal to an amplitude of exactly 6 divisions.
4 - Lower the frequency to 10 Hz and verify that the displayed amplitude does not drop below
4.2 divisions.
Requirements:
The vertical deflection must be 4.2 divisions or more.
Repeat the above settings and procedure for CH2, CH3, and CH4.
6.3.12 Vertical deflection; dynamic range at 25/50 MHz
The oscilloscope must be capable of displaying signal amplitudes that are larger than the screen. In
practice, a low frequency signal with an amplitude equivalent to 24 divisions must be displayed with
no distortion.
Test equipment:
Fluke 5500A mode: levsine (Alternative: constant amplitude sine wave generator SG 503)
Test set up:
5500A
SCOPE
OUTPUT
o
T
OSCILLOSCOPE UNDER TEST
r
< Q O O O
v.________________
IT
500 CABLE
OSCILLOSCOPE UNDER TEST
CH1
< Q O O O
l _________________
w
500 CABLE
PERFORMANCE TEST
)
r
t
A
CH2 CH3 CH4
)
5 0 C i
TERM.
ST8103