Autohold Mode; Relative Mode - Fluke 27-II User Manual

27 II/28 II
Users Manual

AutoHOLD Mode

XWWarning
To avoid possible electric shock or personal
injury, do not use AutoHOLD mode to
determine that circuits are without power.
The AutoHOLD mode will not capture
unstable or noisy readings.
The AutoHOLD mode captures the present reading on
the display. When a new, stable reading is detected, the
Meter beeps and displays the new reading. To enter or
exit AutoHOLD mode, press
36

.

Relative Mode

Selecting relative mode ( 
the display and store the present reading as the reference
for subsequent measurements. The Meter is locked into
the range selected when you pressed
 again to exit this mode.
In relative mode, the reading shown is always the
difference between the present reading and the stored
reference value. For example, if the stored reference
value is 15.00 V and the present reading is 14.10 V, the
display shows -0.90 V.
) causes the Meter to zero
 . Press