Major tech MT25, Instruction Manual, Page: 7 / 16

5. Operation
5.1. Auto Power Off
The meter automatically turns off after 15 minutes of inactivity. To reset the
meter after it shuts off, turn rotary function switch to the off position and than
set the switch to the desired function. To disable Auto Power Off, turn the rotary
function switch to the off position. Press and hold the MODE button and set the
rotary function switch to the desired function except
switch set to current .
Release the MODE button when the “ ” symbol on the LCD display disappears.
Auto Power Off is now disabled. Auto Power Off will be restored when the meter
is turned off and back on again.
5.2. MODE Button
Used to select AC or DC voltage, Hz or % Duty Cycle, Ohms, Diode Test,
Continuity or Capacitance, and °F and °C.
5.3. MAX MIN Button
1. Momentarily press the MAX/MIN button to activate the MAX/MIN mode. The
“ MAX ” indicator will appear on the LCD display. The meter will display and
hold the maximum reading and will update when a higher “ max ” occurs.
2. Momentarily press the MAX/MIN button to view the lowest reading. The
“ MIN ” indicator meter will appear on the LCD display. The meter will display
and hold the minimum reading and will update when a lower “ min ” occurs.
3. Press and hold the MAX/MIN button to end MAX/MIN and return to normal
operation.
NOTE: The meter does not auto range when the MAX/MIN mode is active. The
display will read “OL” if the range is exceeded. MAX/MIN does not work on
Frequency, Duty Cycle, Diode Test, Continuity and Capacitance.
5.4. Flashlight Button
Press the button to turn the flashlight on and off.
5.5. HOLD/Backlight Button
To freeze the reading on the display, momentarily press the HOLD button.
“HOLD” will appear on the LCD display while the reading is being held.
Momentarily press the HOLD button again to return to normal oper ation.
The backlight illuminates the LCD display when the ambient light is too low to
view the displayed readings. To turn on, press and hold the HOLD button until
the backlight turns on. To turn off, press and hold the HOLD button again until
the backlight turns off.
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