Fluke 187 Getting Started page 11

Button
Press O to access "Yellow Button Functions." The O box and the 24-hour clock appear in the lower corners
of the display and the primary display freezes, allowing time to press a second button.
T
Press to turn backlight on or off. Also, in Setup, use
l
the arrow function (l) to select the previous digit or
item in a list.
Q
Press to freeze the displayed value. Press again to
release the display.
M
Press to start retaining min, max, and average values.
Press successively to display max, min, and average
values. Press O N (CANCEL) to stop.
D
Press to store the present reading as an offset
reference; subsequent readings show only the relative
difference from this value. Press again to show the
difference as a percentage of the reference.
Table 2. Pushbuttons
Description
Yellow Button
Function
Note
Press to access Setup selections.
SETUP
O T
Press to store a Setup selection and
proceed to the next selection.
Press to begin AutoHOLD; the last
AutoHOLD
O Q
stable reading is displayed.
Press to start FAST MN MX mode,
FAST MN MX
O M
where min and max values for short
duration events are stored.
Press to start and stop Logging
(Model 189). Press O + N
LOGGING
O D
(CANCEL) to stop.
True RMS Multimeter
Pushbuttons
Description
7