UEi Test Instruments DT302 - Manual (Page 6)

Buttons
NOTE: Press all the dual function buttons momentarily to activate the
Upper Row Function ,and press these buttons for more than 1 second
to activate the Lower Row Functions.
Press this button momentarily to turn the backlight on and
off. The backlight turns off after 30 seconds without any
button pressed. If the battery is low, the backlight is
disabled.
Press this button for more than 1 second to turn the
thermometer on and off.
(DT302) While displaying T1 in the primary display
momentarily pressing this button will scroll through T2 or
the internal temperature of the meter. Press and hold to
change primary display to temperature differential (T1-T2).
While displaying (T1-T2) in the primary display
momentarily pressing this button will scroll through T1, T2,
or the internal temperature of the meter in the lower
display
(DT301) Press this button momentarily to enter or exit the
“RELATIVE” mode.
Press this button momentarily to step through the
maximum, minimum, and average readings in the
secondary display. When viewing logged readings, shows
the maximum, minimum, and average of the logged
readings. Press this button for more than 1 second to turn
off this display.
The “ “ function is activated in the “RECALL” and
“SETUP” mode only.
Press this button momentarily to freeze or release the
displayed readings. Press this button for more than 1
second to switch between Celsius (˚C), Fahrenheit (˚F), and
Kelvin (K).
The “ “ function is activated in the “RECALL” and
“SETUP” mode only.
4