Fluke 87 III - Manual (Page 19)

Your Meter’s Features
11
Table 5. Display Features (continued)
Number Feature Indication Page
K
4000 mV Displays the currently selected range. See specifications
for ranges for each
function.
L
Analog bar graph Provides an analog indication of the present inputs. 28
M
0L
The input (or the relative value when in relative mode) is too large
for the selected range. For duty cycle measurements OL is
displayed when the input signal stays high or low. Duty cycle: 27
Power-Up Options
Holding a button down while turning the meter on
activates a power-up option. Table 4 includes the power-
up options available. These options are also listed on the
back of the meter.
Automatic Power-Off
The meter automatically turns off if you do not turn the
rotary switch or press a button for 30 minutes. To disable
automatic power-off, hold down the blue button while
turning the meter on. Automatic power-off is always
disabled in MIN MAX recording mode.