Fluke 27/FM - Tilt Stand Adjustment

Using the Bar Graph
The bar graph will display at least one segment when the contact opens. The
bar graph can detect contact bounce as brief as 0.2 ms, while most analog
needle movements require a
3 ms opening before they will respond.
Checking Capacitors
With the meter set to the resistance function, the analog bar graph can be
used (even in the autoranging mode) to check capacitors. As a capacitor is
placed across the inputs, the analog bar graph quickly shortens, then
rapidly down-ranges, depending on the size of the capacitor. As the
capacitor charges, the bar graph slowly extends back to its full 31-segment
length, up-ranging if necessary. For capacitors as small as 0.02 uF, only
the 30-megohm range is involved, the last few segments blink off, then back on.
In a fixed range (using manual range mode), the time it takes for the bar
graph to extend from zero to full scale indicates the approximate
capacitance value. Table 2 gives typical capacitance values for various
charge times on different resistance ranges. For very small capacitors, use
the conductance (1/ohm nS) mode.
Table 2. Capacitance vs. Time to Full Scale
Resistance
Range
3200
3.2k0
32k0
320k0
3.2M0
32M0
Capacitance
Value
10,000 pF
1,000 pF
100 pF
10 pF
1 pF
0.1 pF
0.02 pF
4 sec
blink
nil
nil
nil
nil
nil
8
co C =

=
-c)
E
(
i
)
i
n
8
Nt
ext
ext
32 sec
4 sec
blink
nil
nil
ext
ext
ext
30 sec
3 sec
blink
nil
ext
ext
ext
ext
19 sec
2 sec
blink
ext = extended time, nil = no indication
Noisy Resistance Measurements
Your Fluke meter will tolerate ac noise far better than the usual DMM.
Readings of 2-kilohms can be obtained even in the presence of 1V ac noise.
Readings of 1 megohm may be obtained with up to 2V ac noise. The noise
appears as about 50 counts of change and an oscillating bar graph.
MAINTENANCE
General Maintenance
Replaceable parts are listed below:
PART 
FSCM  PART NO.  NSN
F1-Fuse, Catridge 1A/600V

71400

BBS-1  5920-00-615-3781
F3-Fuse 15A/600V  71400 
KTK-15 
5920-00-064-2374
Lead, Test 
89536
 654053

6625-01-220-5608
Battery, 9V Alkaline,
NEDA 1604A