Fluke 87 V User Manual
80 Series V
Table 4. Pushbuttons (cont.)
Stores the present reading as a reference for subsequent readings. The display is
zeroed, and the stored reading is subtracted from all subsequent readings.
Enables zoom mode for the bar graph. The Meter reads “
for frequency measurements.
Starts the frequency counter.
Press again to enter duty cycle mode.
Enables the Meter’s high impedance mode when the mV dc function is used.
The Meter reads “