RayTek 3i Operator's Manual page 21

Mode button—Press the mode button to change modes in any of the four loops.
Mode display and Mode value display—The Mode display shows the current mode
selected. The mode value display shows the temperature, set-point, or LOG location
value for the mode selected.
Recall button and icon—Press the RCL button to activate the RECALL loop. The
RECALL loop may be used to recall values from either the RUN or LOG loops. The
RCL icon is activated when the instrument is in the RECALL loop.
RUN button—Press the RUN/LOG button, when the trigger is pulled, to toggle
between the RUN and LOG loops.
Setup button and icon—Press the SET button to activate the SETUP loop. The
SETUP loop may be used to set values in either the RUN or LOG loops. The SET icon
is activated when the instrument is in the SET loop.
T icon—This is activated when the ambient temperature compensation function is
amb
activated. This feature only affects readings in the RUN loop; readings in the LOG
loop are not affected.
Trigger lock icon—The small padlock is the trigger lock icon and is activated when
LOCK is pressed while the trigger is pulled. To unlock the trigger, simply press the
LOCK button again.
Raynger 3i Series Operator's Manual 2-9