Fluke PM6669 - Page 19

CONTROL OPERATING THE
CONTROL
DISPLAY GPIB-CODE
Pull the SENSITIVITY
knob to switch to AC
coupling. Depress the
knob to switch to DC
coupling.
NOTE: The
potentiometer controls
the sensitivity when AC-
coupled and Trigger
Level when DC-coupled.
Turn the knob clockwise
to increase and counter
clockwise to decrease
the trigger level or
sensitivity.
Not adjustable
from the bus.
One two-position switch.
Depress to switch on
the FILTER and relase
to switch it off.
Not bus
controllable.
Connect an external
10 MHz frequency
source to the BNC-
connector on the rear
panel of the Frequency
Counter marked EXT
REF INPUT.
Not bus
controllable.
200mVrms
10mVrms
MIN
SENSITIVITY
INPUT A
INPUT A
FILTER<50kHz
1
0MHz 0.5-15Vrm
s
EXT REF INPUT
TRIGGER LEVEL A
HOLD
DISPLMEASURING TIME
10s1s0.2sSINGLE
REF
EXT
A
WIDTH
A
TOT
A
PER
A
RPM
A-A
0
FREQ
A/A
0
FREQ
B
FREQ
A
FREQ
FUNCTION
AUTO
kHz
u ms
GATE
0.
M
Page: 18 OPERATING INSTRUCTIONS
PM 6669 - OPERATORS MANUAL