Fluke PM3082, Service Manual

Page: 16 / 496

CHARACTERISTICS
2 - 5
CHARACTERISTICS SPECIFICATION ADDITIONAL INFORMATION
2.1.12 Signal delay
VISUAL SIGNAL DELAY >15 ns
>13 ns
DELAY BETWEEN
CHANNELS
CH1 and CH2
<250 ps
CH3 and CH4 <250 ps
CH1...CH4 <250 ps
Any two channels <500 ps
2.1.13 Vertical accuracies
ACCURACY
deflection factor
Gain error (d.c.)
±1.3 %
Non linearity <2 %
MAX. BASELINE
INSTABILITY
Jump (all between steps, 0.2 div or 1 mV
Whichever is greater
VAR and N/l) (after autocal)
Drift 0.1 div/h
Temperature
coefficient
0.03div/K
CHANNEL ISOLATION
Of deselected channels
at 10 MHz
100:1 See note 3
Of deselected channels
at upper transition point
50 :1 See note 4
Between selected channel
50 :1 See note 5
CMRR
See note 6
at 1 MHz
100:1
at 50 MHz 25:1
Note 1: add 1.5 % for variable gain mode
Note 2: 2 div centerscreen signal with a frequency of 50 kHz, shifted within central 6 div.
Note 3: At 10 MHz; input to deselected channel equivalent to 8 div. or less.
Note 4: PM3092/3094 a t200 MHz; PM3082/3084 at 100 MHz; channels with equal V/div setting;
input to deselected channels equivalent to 6 div.
Note 5: PM3092/3094 at 200 MHz; PM3082/3084 at 100 MHz; channels with equal V/div.
settings; input to either channel 6 div. PM3092/94: max input amplitude 3 Vpp
Note 6: Between any two input channels at same attenuator setting; VAR of V/div setting adjusted
for best CMRR; measured with max. 8 div input at each channel (center screen).
PM3092, PM3094
PM3082, PM3084
4 channel instruments
2+2 channel instruments
Over central 6 div.
See note 1
See note 2