Fluke 187 user manual Button Pushbuttons Yellow Button Description Function

Model 187 & 189

Users Manual

Button

	Table 2-2. Pushbuttons
		Yellow Button
Description		Function

Description

Note

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

l

Q

M

D

Press to turn backlight on or off. Also, in Setup, use the arrow function (l) to select the previous digit or item in a list.

Press to freeze the displayed value. Press again to release the display.

Press to start retaining min, max, and average values. Press successively to display max, min, and average values. Press O N (CANCEL) to stop.

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.

SETUP

OT

AutoHOLD

O Q

FAST MN MX

O M

LOGGING

O D

Press to access Setup selections. Press to store a Setup selection and proceed to the next selection.

Press to begin AutoHOLD; the last stable reading is displayed.

Press to start FAST MN MX mode, where min and max values for short duration events are stored.

Press to start and stop Logging (Model 189). Press O + N (CANCEL) to stop.

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