Fluke 867B - Measuring Frequency

867B/863
Users Manual
2-22
ACOM
V
EXT TRIG
1
4
3
2
FREEZE
DISPLAY
MODE
SAVE
PRINT
MIN
MAX
RANGE
WAKE UP
HZ
TOUCH
HOLD
12 5
3 4
A
mV
V
V
HiZ
mA/
A
mA
A
rita0640.eps
Figure 2-11. Frequency Measurements
Measuring Frequency
You can measure low frequency signals (2 Hz to 2
MHz) with the procedure shown below. For higher
frequency signals (to 10 MHz and above), use the
Logic Test function.
6
Turn the Selector to any of the indicated
positions. (Frequency can be measured in
VAC, VDC, mV DC, A, and mAμA.)
7
Connect the test leads as required for the
selected measurement position.
8
Press
F
.
9
Use the Frequency Softkeys as discussed
below.
The frequency counter trigger levels are set to
predetermined levels while the GMM is in the single
trigger mode. In dual trigger mode, the frequency
counter trigger levels are set initially (full auto) based
on a percentage of the input signal. You can change
both levels with the Trigger Softkeys in the view
mode. Manually setting these levels may cause the
frequency counter to be unstable or not count at all.