Tektronix DMM912 Manuel D'instructions page 17

Push to enter the delta display mode, displaying the
/ %.
difference (delta) between the measured value and a
reference value. The reference value is set when entering
Delta mode or using the Setup function. The difference is
displayed in the measurement units or as a percent
(selected by repeating the / % button press).
Hold mode is activated when a stable reading is
AUTO H.
first achieved.
DIGITS. Push to toggle the display count between 40,000
and 4,000. The low count provides a faster response.
Peak hold operates similar to M/M/A except that
PEAK H .
events as fast as 1 ms are captured and average values are
not available. The indicator appears in the display.
Peak hold disables the bargraph. Peak hold operates for
DC volts.
DMM912/914/916 1–13