Fluke PM6685 - Replacement Parts

–
Select NULL by pressing s or t.
–
Press ENTER twice.
–
Set the measuring time to 10 s.
–
Connect the 10 MHz reference to the input A of the counter.
Adjustment procedure
–
Remove the seal from the front panel.
–
Adjust the potentiometer beyond the seal until the display
reads 0.5
-3
Hz or less.
–
Check that the value is stable over time, (more than 30 min
-
utes).
–
Cover the “CALIBRATION ADJUSTMENT” hole on the front
panel with a relevant seal if necessary.
Replacement Parts
Pos Description Part Number P
Cover, (incl. front part). 5322 447 92194 P
Fan 2822 031 01327 R
Text plate kit 4031 100 62440 R
Rear plate 4031 100 53930 P
A1 Power supply 5322 214 91268 P
D1 LED, HLMP-1300, red 5322 130 81921
L1 Toroid 5322 526 10545
L2 Toroid 5322 526 10545
L3 Toroid 5322 526 10545
P1-P3 Cable kit 4031 100 61530 P
R1 Potentiometer, 1 kW 5322 101 11298
R2 Resistor 3.83 kW, 1% 0.5 W MRS25 4822 050 23832
NOTE: The rubidium time base (unit A2) must be sent to a
Fluke service center for repair. Follow the exchange
procedure.
9-14 Replacement Parts